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Oscillation fault is a kind of aircraft fault which has a great influence on flight safety, aircraft structure and system control. This paper analyzes the causes and influencing factors of aircraft oscillation fault, and defines the design path and monitoring level of oscillation fault monitoring, proposes a design and verification method of oscillation fault monitor, and verifies its feasibility by applying it to a certain type of flight control system. This result has a good guiding role for the design and test verification of the aircraft flight control system oscillation fault monitor, can support the flight control system oscillation fault test, and verify the compliance of the oscillation fault monitor with the design requirements and corresponding airworthiness terms. [ABSTRACT FROM AUTHOR]

Four main chain polymeric metal complexes (P1-P4) based on 1,10-phenanthroline metal complexes via the Heck coupling have been synthesized and characterized by Fourier transform infrared spectroscopy, 1H NMR, UV-Vis absorption, photoluminescence spectroscopy, gel permeation chromatography, thermogravimetric analysis, differential scanning calorimetry, elemental analysis, and cyclic voltammetry. To investigate their photovoltaic properties, the dye-sensitized solar cells based on these polymers dyes are studied, under the illumination of AM 1.5G, 100 mW/cm2. The study results show the four polymers exhibit good thermally stable and the solar cells based on them have good device performance, and the maximum power conversion efficiency is up to 0.735% for the solar cells based on P3 with a short-circuit current ( Jsc) of 1.68 mA/cm2 and an open-circuit voltage ( Voc) of 0.62 V. Copyright © 2012 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]