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The Maintenance Manual, as a Carrier of Aircraft Design Data and Security Requirements, Plays an Important Role in the System of Aircraft Technical Materials. A Large Number of Factors, Especially the Management of Content Materials, should Be Paid Great Attention to. this Paper Made an in-Depth Analysis to the Major Ways of Composing Maintenance Manuals Based on Popular Theories and Technologies of Virtual Maintenance, and Produced a New way that Creates Removal/install Data Modules by Utilizing Two Dimensional Graphs of Related Parts. this New way has been Calculated and Verified with Actual Parts of Aircrafts, and Thus Proves that no Excessive Dependence on Materials will Occur during Compiling a Maintenance Manual. Meanwhile, an Outline Referring to Removal/install Steps and a Gantt Chart is Shown here, in Order to Make a Visual Process. the New way, as a Conclusion of this Paper, does Not Rely on Personal Experiences and no Special Requirements are Needed, and Thus Makes itself Easy to Be Popularized.

The energy minimization multi-scale model is applied to the plane jet. The stability conditions of plane jets is adopted to predict the velocity distribution of plane jet. When the ratio of total dissipation to viscous dissipation tends to the maximum is used as the optimization condition and entrancement factor is considered as a constant, the Gauss velocity distribution can be concluded in the plane jet.

The innovation of solar water heating system of students living community in Shanghai Ocean University is illustrated in this paper. A new water heating system including solar, air source heat pumps and gas boiler is established owing to the high energy consumption of original system. The comprehensive energy consumption, carbon emission and operating cost comparison between the original and new system is analysed based on the measured water, power and natural gas consumption. The results show that the comprehensive energy consumption is reduced by about 27.5%, the carbon commission decreased by 6%, and the operating costs reduced by approximately 23.6%, which means the new hot water system is successful.

Electroless copper plating method combined with spark plasma sintering (SPS) was used to fabricate W-Cu alloy with low W-W contiguity. Results show that W-Cu alloy with low W-W contiguity and high relative density can be obtained by this method. With sintering temperature increased from 860°C to 1060°C, the relative density of W-Cu alloy shows a rapidly increasing tendency, but the W-W contiguity keeps at a low level. Compression testing results show that the ductility of prepared W-Cu alloy is sensitive to strain rate, and the failure strain of the W-Cu alloy shows obviously increasing tendency with the loading strain rate increased from 10-3 to 103.

From the context of this area, combined with the well, core and logging data, the characteristics of heterogeneity of this region can be studied. Through calculating the parameters like porosity, permeability, saturation, permeability coefficient of variation, sudden coefficient and differential, the heterogeneity in the layer and the plane has been studied. The sand groups in the Chang 6 reservoir mainly are delta front sand underwater distributary channel sand body, the heterogeneity in the layer is weak; In the plane, the heterogeneity of distributary channel sand body is weak, while the one in estuary dam, front sheet sands and underwater natural levee is strong. Through comprehensive analysis, Chang 6 reservoir in Hulangmao region is strong heterogeneity reservoir. After comparing permeability coefficient of variation, sudden coefficient and differential of 3 layer and 5 layer in Chang 6,it can conclude that the development effect of 5 layer is better than 3 layer in the process of water-flooding development. This research can be some guidance to some area in the mainland.

For the electric vehicle motor controller driver section requirements of the multiple isolated power supply problems, analyzed the common DC/DC converter, the single-ended flyback converter was selected as the motor controller auxiliary power supply. Taking into account the parasitic parameters of the high frequency transformer and switch transistor effects on the circuit, the loss model was showed. Its feasibility is verified by experiments. Experimental results showed that the designed RCD clamp circuit switch could effectively reduce stress and meet the requirements of the motor controller.

As the electric vehicles usually run under complex conditions of city road, there always exists parameter perturbation of motor, which will affect the vehicle performance. To solve the problem, an improved sliding mode variable structure control (SMC) method which combines continuous function and reaching law has been proposed in this paper. Then the improved vector control algorithm’s codes are generated automatically in the MMC (Model-based Motor Control) platform. The results show that the improved SMC algorithm has small chattering and strong robustness to the parameter perturbation and the external disturbances.

In the foundation of the realization of sensorless control of permanent magnet synchronous motor(PMSM) based on the traditional sliding mode observer, the paper focuses on the research on the chattering impacts on the estimation of rotor position and speed, which are caused by the sliding mode variable structure control. To weaken the chattering, the paper proposes two kinds of methods. First, the paper designs the saturation function with boundary layer thickness variable instead of sign function in the traditional sliding mode observer. Meanwhile, let the phase-locked loop (PLL) combine to the sliding mode observer, and construct the rotor position signal detection unit. Finally, the paper verifies the correctness and effectiveness of the proposed methods through the theoretical analysis and simulation.

In this paper, the ultimate bearing capacities of piles of a super high-rise dual-tower building structure in Guiyang were investigated. A stepwise test procedure was developed and carried out to obtain the pile capacity because of the limitation of experimental equipment and the complicate geological conditions. In the proposed procedure, the deep plate test, side friction test, and an in-situ test of full-scale pile were all carried out in the same hole in sequence. The equipment and procedure of the stepwise test are described in details. The test results are meaningful to provide reference values for investigating mechanical behaviour of pile and statistical analysis of pile capacity in the typical karst geology of Guizhou province. Since such a large-scale field test in Guizhou is limited, some recommendation values are also given to engineers for the pile foundation design in this district.

Brief introduction of research progresses of hydrophobically associating water soluble polymer, as well as a synthesis method of a hydrophobically associating water-soluble polymer P (AM/KAA/MAHB). Meanwhile the molecular structure is characterized, and the viscosity behavior of the ionic hydrophobic-associating polymer solution is analyzed. The influences of polymer concentration, temperature, shear rate and water salinity of the saline solution on apparent viscosity are discussed. The critical associating concentration of polymer in salt solutions and salt thickening effect are also studied. The results show that the polymer possesses obvious temperature resistance and salt tolerance compared with partially hydrolyzed polyacrylamide polymer.

In this paper, the multi-body dynamics software EXCITE was used to simulate the connecting rod big end bearing of two-stroke marine diesel engine. The result showed the stress analysis of connecting rod big end bearing. The purpose is to provide a theoretical basis for the actual conditions of connecting rod big end bearing, and to improve the design of the crankshaft structure.

This paper according to the actual situation of the Liaohe river basin, and from its physical characteristics , impact on social economy, natural environment, ecological environment build the evaluation database including fourteen evaluation indexes,and then combine with the Fuzzy-AHP algorithm build the comprehensive evaluation modelin. For different scheduling scenarios, and give a set of scheduling scheme and realize the evaluation system which can protect the water feature, improve and regulate the water environmental capacity.

When the concrete is in the process of load, the curve of amplitude - frequency shows significant characteristic of exponential. As the load increases, the acoustic emission signals gradually become complete, the more obvious features of this exponential function. Using the least squares method, we can get an empirical function expression by fitting the data.Function expression has different regression coefficients in different load stages, and regression coefficients changing with load also presents certain rules, which has a good indication to qualitative process of structural damage.

with the substation construction and retrofit, gradually achieve the unattended substation operation, long-term high temperature operation is the main cause of equipment wear and tear, fault, in view of the continuously monitor equipment operation temperature, helps to discover the hidden trouble of equipment operation, master the equipment running status, improve the operating life of equipment. Temperature measuring technology as the main technical means, through continuous improvement to upgrade, there are so many ways to achieve, but the lack of standards and specifications. Through the comparison and analysis of the principle of the existing equipment temperature monitoring technology, concludes the key points of equipment temperature measurement technology, discusses the development trend of substation equipment temperature measurement technology, formation of substation equipment should have the characteristics of temperature monitoring technology. In substation operations management and equipment maintenance as the goal, combined with the Internet of things, the sensing technology, the realization of intelligent substation temperature measuring technology application.

Along with the once again leap development of science and technology, wireless sensor network technology by a great number of agency predicted to be the core technology of power to change the world, has become the one of the important research field both at home and abroad, has wide application background. It is in special scenario application especially, due to the special restrictions on target area, making the advantages of wireless sensor network system well. In this article, through the research of wireless sensor network system, key technologies and difficulties in the design of the Internet of things system for wireless sensor network solution, and describes in detail the system each function module in detail.

The research work, Ascertaining the connection type between evaporating tube bundle and a steam drum shell on a Natural Circulation marine supercharged boiler, is important. For this reason the method, calculating the low-cyle fatigue life of supercharged boiler steam drums put forward by Xin-wei Zheng, et al., was put to use; Based on the relevant basic data from design department and two typical running conditions of one supercharged boiler, the cumulative fatigue damage ratio of welding technique was calculated. The calculated result proves that it exceeds the maximum value of 1.0 and the upper limit value of 0.75 in fossil-fuel power plants, respectively. So welding technique can’t guarantee the low-cycle fatigue life of this steam drum, the only connection type is expanded joint, and the connection type has been put into practice.

The wave speed of acoustic emission in the medium is uncertain, which is influenced by the source characteristics and the relative position between the acoustic emission source and the sensors. Due to this difference, the results of TDOA location method determination of wave speed in advance are very discrete. As to liner location ,the more farther the distance between two acoustic emission source sensor are, the more serious the discrete error are. Any of the two sensors, a location line can be obtained by setting the wave speed as a horizontal coordinate and the location as the vertical coordinate. The horizontal coordinate of location line of the different sensors is the real wave speed of acoustic emission events. This method has lower computational complexity, which can overcome the influence on acoustic emission location which wave speed setting error brings, having some practical value in Engineering.

The planning of network communications of Yalong river basin hydropower development company aims to adapt to the company's strategy and making decision, meet the requirements of project construction, electric power production and administrative management. Based on the principle of advanced nature, economy, reliability, security, scalability, and standardization, the concept of basin area and framework of network communication are put forward on the regional development and project category of Yalong River Company . The content of communication planning is to solve the network communication problems of the company headquarters, between the company headquarters and secondary units focus on office, between corporate headquarters and production, between basin area and each power plant under construction projects.

Pronunciation conversion is the premise to realize the speech synthesis system, besides, the conversion accuracy is directly related to the quality of synthetic speech. By studying the characteristics of Tibetan words and Lhasa pronunciation, currently method of the pronunciation conversion for Tibetan dialect in Lhasa, combination the need of speech synthesis research, designed and realized the pronunciation conversion system that can be applied in the Lhasa dialect of Tibetan speech synthesis. In tests the system is up to 95.3 percent accurate, the results of conversion are basically able to meet the needs of the Tibetan speech synthesis system.

An O/W type paraffin wax emulsions was prepared using Tweenand Span emulsifiers, and liquid paraffin. The influences of temperature, HLB and surfactants concentration in particle size of paraffin wax emulsions were studied, as were the stability of paraffin wax emulsions. The application performances in drilling fluid of paraffin wax emulsions were researched with respect to artificial core line swelling and shale recovery. Results showed that the best conditions of preparation of emulsified wax: surfactants concentration was 5%, temperature was 50°Cand HLB was 10.1-10.5. It was found that paraffin wax emulsions possess strong inhibition ability for hydration, swelling and dispersing of clay and shale. The inhibition ability of paraffin wax emulsions enhanced with KCl.

Android platform is not implemented Tibetan localization currently. Tibetan glyphs superimposed incorrect. This paper researched Android system source code and Tibetan text features, elaborated Tibetan localized operating on Android system. The main contents include downloaded and compiled Android4.1 source, added the Tibetan language settings options, modified the ICU4C module, added Tibetan font, translated into Tibetan language, solved the problem of Tibetan superposition display, added Tibetan input method, etc. The implementation of the Android platform Tibetan localization is the foundation for Tibetan Localization on Android devices.

In this paper, an 1000MW ultra-supercritical boiler unit was taken as the research case. The neural network, RBF, was used to build the model for the 1000MW ultra supercritical unit based on Matlab. The inputs of the model include fuel amount, feedwater flow,turbine valve opening demand. The outputs include unit load, main steam pressure and intermediate point temperature. The simulation results proved the validity of the model. The model can be used to improve the response rate of the unit load and optimize the coordinating control with certain practical engineering significance.

How to provide dependability based on safety is a challenge faced by train control system. Formal approaches are important for modeling and verification of automatic speed control Systems. In the paper, a formal model of automatic speed control Systems based on Petri nets (ASCS-nets) is presented. And the transformation approaches from automatic train speed control system to ASCS-nets are given. Correctness verification of automatic train speed control system is implemented based on ASCS-nets model.

According to the shortcoming of traditional Canny edge detection algorithm is sensitive to noise and low positioning accuracy, this paper proposes an algorithm of Polynomial interpolation Sub-pixel edge detection based on improved Canny operator: We first use improved Canny operator edge detection algorithm to extract rough image edge, then use the quadratic Polynomial interpolation to calculate on the rough extraction edge, finally refine the edge image. Experiments show that the improved method is better than the traditional detection method can accurately locate the image edge.

Traditionally compliant mechanism is difficult to achieve decoupling features, because of lack of definite theory and its deformability character. Whereas its counterpart - many rigid mechanisms with decoupling property have been designed and the method of mechanism design with decoupling feature is constructed. In this paper, an effective method to build equivalent transformation between rigid decoupling mechanism and compliant mechanism with decoupling property is proposed, and also applied to design new a decoupling rigid mechanism with 3-DOF. Finally, the decoupling features of the micro motion platform was verified through FEM analysis software ANSYS because of difficulty of compliant mechanism analysis.

The Infineon AUDO FUTURE series micro-controller is widely applied in automobile power system, to solve the online programming problem, paper designed online upgrade system for Infineon AUDO FUTURE series MCU based on CAN Bus, which uses IAP technique to realize triggering bootloader without adding any hardware. Since all ECUs in vehicle are connected to CAN Bus which use ISO15765 protocol to communicate with each other, the entire download process paper designed follow the ISO15765 protocol. This system is suitable for any chip of this series and paper test it based on TC1767. The experimental result shows that this system has strong reliability with high efficiency.

Accurately identifying road condition can send relevant information to the motor control system, so that control system of the motor can adjust the control strategy timely, eventually, the intelligent and optimal control of electric vehicles is realized. In this paper, according to these mathematical model, the permanent magnet synchronous motors simulation model and vehicles simulation model are proposed. Then, output torque of motor and speed of motor are served as the input of RBF neural network, which helps road condition to be identified. The simulation result shows that the road condition is well identified by proposed method based on RBF neural network.

For the driver in the process of moving inconvenient to manually operated vehicle electronics, as well as the monopoly of foreign technology and other issues related , a framework based on DSP + MCU car speech recognition and control systems is designed. According to the embedded application environment, the corresponding recognition algorithm and the hardware architecture of DSP + MCU are chosen, in which DSP is mainly responsible for voice signal processing work, MCU is responsible for communicating with DSP and MCU to obtain recognition results after speech signal processing, as the final control instructions .The experimental results show that the hardware platform can run normally, and control the car body light on experimental bench.

This article briefly describes the modern power system of high-voltage reactive power compensation device development status, discusses the high voltage reactive power compensation device applications, with the traditional high-voltage reactive power compensation device matching, demonstration of a new generation SVC (Static Var Compensator) and SVG (STATCOM) advantages and application results. This paper focuses on the innovative technology in the new generation of high-voltage reactive power compensation device in the application, while a new generation of high voltage discussed reactive power compensation device application prospects.

To solve the problem of updating the software for Vehicle Fault Diagnose Instrument frequently, paper proposed an approach to realize the technology of parsing and matching vehicle diagnostic information based on XML database. Paper discussed the theory and process of the approach and used it to develop the Vehicle Diagnose Instrument based on Android OS. The testing result shows that this approach could be easily realized and improved the efficiency of updating the vehicle information.

It’s a basic work for Tibetan information processing to tag the Tibetan parts of speech,the results can be used in machine translation, speech synthesis and so on. By studying the Tibetan language grammar and the classification of Tibetan parts of speech, established the Tibetan parts of speech tagging sets, and tagged the corpus, used the CRFs to solve the problem that automatic tagging of Tibetan parts of speech, the experimental results show that in the closed test set, part-of-speech tagging accuracy is 94.2%, and in the opening set, the accuracy is 91.5%.

The framework of auto speech recognition of Lhasa dialect was established in this paper. Phoneme was chosen as the basic unit for modeling. Then, phonemes set of Lhasa dialect and their Latin transliteration were designed. There were 5568 frequently used monosyllables in the vocabulary. Hidden Markov Models of triphones were established and trained by use of HTK. Word error rate (WER) was 21.81% under the optimal situation.

A bionic active inchworm endoscopy micro robot was designed which was driven by a flexible 3-DOF (Degree of Freedom) pneumatic artificial actuator for inspection in small industrial pipes or in human cavities online. The driving and the resistance forces on the robot were analyzed and the kinemics equation was set up according to small pipe environment with working fluid. Applying PWM (Pulse Width Modulation: PWM) techniques, the robot can move continuously by computer control. The experiment results prove the robot has good performances and has the capability of doing inspecting work online.

As a key technology in the RFC 5210 framework, Source Address Validation Improvements (SAVI) provides an effective solution to perform accurate source address validation. In this paper we present a detailed analysis of the application of SAVI in building campus network. Our work provides valuable insights into the generation of low-risk and trustworthy campus network.

A preparation of nanometer silver sol by micro arc discharge has been study here through the reduction of Ag3PO4. Sodium citrate and polyvinylpyrrolidone were added respectively into the electrolyte as stabilizer. The results show that, the Ag3PO4 concentration, stabilizer type and concentration have great impacts on the formation of the nanometer silver sol. By means of UV-VIS extinction spectrophotometer, scanning electron microscope and energy dispersive spectrometer, it is found that the solid powder extracted from the electrolyte solution after discharge is the aggregation of the silver formed in the solution and their original size maybe less than 20nm. Nanometer silver with smaller size and narrower size distribution can be obtained with sodium citrate as stabilizer than with polyvinylpyrrolidone. But the latter has higher conversion rate. From this experiment, we found that micro arc discharge can be a rapid, stable preparation method of nanometer silver sol.

Distributed Generation (DG) plays a more and more important role in the power system.When it is in the grid-connected mode,it has a great influence for security and stability of power systems.In order to determine the best position of DG when it is grid-connected,firstly,analyze the the steady of the system to define the candidates of DGs that will be grid-connected,then select some operation indicators to assess the power system using Interval Analytic Hierarchy Process (IAHP),finally decide the best position of DG. Modeling and simulation work are carried out in BPA,and the detailed steps of decision-making are given. The results show that the location of DG determined by this method of the paper can guarantee the security and stability of power systems and make grid in the optimal operation.

The current of single-phase grounding fault in NUGS is very small, so correctly detecting earthing fault line is hard to achieve on the system with insulated neutral point. The existing different grounding fault line selecting methods have some limitations and shortcomings and lack credibility. In order to solve the problem, in the paper comprehensively various methods method of each fault detection in small current grounding system based on information fusion and intelligent process is proposed , and select fault line many times, achieve the desired effect of fault locating. A multi-criteria fault line selecting method is presented by using information fusion and intelligent process is proposed. A fuzzy comprehensive evaluation is given. The simulation results show the proposed method of fuzzy data fusion from multiple line selecting has higher credibility.

Vehicle exhaust waste heat utilization can improve automotive vehicle fuel efficiency to optimize energy use and reduce CO2 greenhouse gas emissions to protect the environment. This paper introduces several methods of using engine waste heat, mainly on the Semiconductor thermoelectric power generation technology and the Organic Rankine Cycle power generation technology, and in-depth study on their system structure, principles and key technologies respectively and get important conclusions.

With the gradual putting into operation of step hydropower stations in a river basin,the combined electricity production patterns of cascade hydropower station group will come into being. The information system of basin-wide electricity production will become the only means of cascade jointed scheduling and achieving maximum efficiency in a river basin. From the angle of the controlling station equipment, production personnel management and scheduling basin cascade hydropower stations group, the information systems framework of electricity production is divided into monitoring system of electricity production, management information systems, decision support system combined electricity production at three levels. A good framework system provides a hierarchical and functional partitioning for system development, and plays a controlling role for guidance to the system development.

This paper introduces a design of liquid crystal GPS positioning terminal based on microcontroller, the system consists of a GPS module, 12864 liquid crystal display module, MCU minimum system module, power module. The paper mainly puts forward the scheme and software design idea, hardware design and debug, the extraction system can realize the positioning and navigation information parameters of GPS global positioning system and the information parameters is analyzed.

In this paper, ultrafine Al2O3 particles were prepared by mechanical milling, and Ni-P-Al2O3 composite coatings were plated on Q235 steel substrates by brush-plating, which plating solutions were containing different concentrations Al2O3 particles. The morphology, phase and particle size distribution of the as-prepared Al2O3 particles, and the properties of the coatings after heat treatment were investigated. The results show that, the morphology of the as-prepared Al2O3 particles were spherical and almost size under 200nm, the coatings were uniformly thickness and the Al2O3 particles were uniformly dispersed in the coatings. Heat treatment could improve the performances of the brush-plating Ni-P-Al2O3 layers. After 1 hour heat treatment in 400°C, the layer which phosphoric content about 2.3wt% had high rigidity, good abrasion-resistance and adhesion strength, and the layer which phosphoric content about 10.1wt% has good erosion-resistance after 1h heat treatment in 600°C.

In this paper, the test bench for electric vehicle drive system is designed and the real-time display of speed, torque, current, voltage and other conventional parameters are realized that can offer lots of authentic data for motor performance evaluation, motor parametric design and optimizing control strategy. Road simulation is an important function in the test bench, so the paper analyses the driving electric vehicle in the longitudinal and gives the theoretical dynamometer dynamic output load values that can provide the theory reference for the further implementation of road conditions simulation based on LabVIEW. Finally, in order to validate the test bench feasibility, the start, accelerated and deceleration tests are implemented and show good performance of the bench.

For the analysis of plane charged conductors by the method-of-moments (MoM), the basic idea and a simple derivation of the formulas is presented in this paper. Veneer conductor capacitor and dual-board conductor capacitor are respectively solved by the method-of-moments, with piecewise function as the basis function and δ function as the weight function. The comparison of the accurate solution illustrates the method-of-moments with good accuracy.

The standardization of the text, word segmentation, the basic stitching unit divided for rhythm analysis and pronunciation conversion is an important content of the speech synthesis system front-end text processing modules. Lhasa Tibetan language and voice characteristics proposed the implementation of a set of Tibetan speech synthesis text analysis module to analyze and describe the Lhasa Tibetan language layer information and maps voice layer. The completion of the study is to lay a solid foundation for further Tibetan speech synthesis system.

One method which is based on model to settle the long development cycle of driver motor control software is adopted for Electric Vehicle (EV). It is to achieve Field Oriented Control algorithm (FOC) designing, model building, and microcontroller driver integration, task scheduling, code generation; Model simulation experiments are completed aiming at three kinds of running conditions such as a constant speed, accelerating, on load; finally, these running conditions are realized in EV and dynamometer platform. Simulation and experimental results show FOC has a well performance on speed regulating by comparing technical parameters with Chang An Ben Ben Mini, adopting the method also shorten the development cycle of motor control software.

For the study of effects of perturbation, such as the change in the resonant frequency and in the other parameters of a rectangular cavity, the resonance condition, the resonant wavelength and the resonant frequency are analyzed in this paper, with the help of perturbation method in a resonance cavity of the reflection type. The relation is deduced in detail under two suppose conditions, which is between the resonant frequency and the dielectric constant or the permeability of the medium filled in the cavity. The accurate relation between the changes in the resonant frequency and in the dielectric constant or the permeability is established. This paper provides the scientific basis for research on the intrinsic characteristic of medium.

In order to avoid dig-hole pile excavation blasting effect the building structure safety and the life of residents around the project, take several controlled blasting technique measures in construction. Through taking reasonable arrangement of holes, delay time, specific charge, initiation ways and safety protection measures, and blasting vibration was measured and analized to guide blasting operations, finally the purpose of excavation blasting was achieved safely. The results show that several controlled blasting techniques used in the project are effective measures, not only ensure the good blasting effect but also control the influence of blasting vibration to surroundings, and provide valuable references to similar projects.

In the promotion of global economic integration, Chinese enterprises began to enter the international engineering contracting market. As risk factors are more complex in international environment, risk management has become an important research topic at the moment. FMEA, shorted for Failure Modes and Effects Analysis, is applied to study the failure modes for each part of the product and to control risk in the first line of defense. Taking advantage of the idea of FMEA, contractors have to identify all the risk in international engineering and build a multi-level structure. On the basis of analytic hierarchy process, we calculate the risk relative importance and harm degree by analysis and assessment. Then take effective measures to avoid risk. With the combination of qualitative and quantitative methods, we try to form a risk management system for international project.

The Failure Mode, Effects and Criticality Analysis of the complicated equipment is difficult to implement. Therefore, this paper puts forward a product family FMECA method based on the analysis process and analysis. At the same time, the application of the fuzzy set and evidence theory are applied in the product family partition algorithm, which considering the complex equipment development early RMS attribute value fuzzy, uncertainty and the non-quantitative and other characters. Besides the method of effective application support complicated equipment based on the product platform of fault information database building methods is given in this paper.

Based on an superposition principle, a new type of mechanically driven non-sinusoidal oscillation device has been designed. It has been proved by production practice that the device has much more advantages of investment, operation, maintenance and reliability than hydraulic-servo driven system. Now the oscillation device has been used at CC slab caster at No.1 Steel-making Plant of Shougang Corp. and obvious effect has been obtained.