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Aiming at the problem that parallel robot exists the lack of movement precision, the zero calibration and performance assessment for a 6-DOF parallel platform used for wave simulation were completed. The inverse kinematics was acquired by using homogeneous coordinates method so as to establish the motion control model of the platform, and the workspace of certain posture was obtained by using boundary search method based on inverse kinematics. The motion control of the platform was realized, the design of control system was done by choosing PC and motion controller as the control mode. The motion performance was improved, vector derivation method was adopted to build the zero point error model,and zero calibration was implemented with the help of laser tracker. Finally, the platform was used to simulate a certain wave spectrum and the tracking performance was analyzed according to the experimental results. The results indicate that the calibrated platform has a good simulation performance. [ABSTRACT FROM AUTHOR]

Under the multi-factor Health-Jarrow-Morton (HJM) model, this paper proposed new stochastic interest rate risk measures. On the basis of the two-factor and three-factor Health-Jarrow-Morton (HJM) model, the paper gave the specific examples of the stochastic interest rate risk measure model. An empirical research was designed to examine the immunization effects of the single-factor and multi-factor stochastic, the traditional and stochastic interest rate risk measure. The results show that the immunization effect of stochastic interest rate risk measure model under the multi-factor Health-Jarrow-Morton (HJM) model is obviously superior to the single factor stochastic duration. This fully testifies the superiority of the stochastic interest rate risk measure than the traditional interest rate risk measure. The new method is valuable for the interest rate risk management. [ABSTRACT FROM AUTHOR]

In order to improve the quality of undergraduate thesis, we constructed the teaching model by combining undergraduate thesis team and scientific research team to direct the undergraduate degree thesis. We gave the full range of training from the thesis topic selection, experimental process, writing, and defense as well as team cooperation, especiaüy in the training of create ability and cooperation spirit. After five years' exploration and pratice, a remarkable outcome is obtained. As achievement of graduation thesis, team spirit and global capability have been improved obviously. We won the excellent graduation thesis team award of Jiangsu universities three times. More than ten SCI papers were published. And this model is valuable to be popularized widely and suitable for cultivaae system on research university. [ABSTRACT FROM AUTHOR]