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以民用飞机前起落架和主起落架为研究对象,首先运用Delphi和SQLServer开发了民用飞机缓冲器参数设计程序,计算了前起落架采用单腔定油孔型式和单腔变油孔型式、主起落架采用单腔定油孔型式和双腔定油孔型式的缓冲器的设计参数;然后基于ADAMS/Aircraft模块分别建立了前起落架和主起落架的虚拟样机,并进行落震仿真分析,仿真结果符合要求;最后通过仿真结果进行起落架缓冲器不同型式的对比分析。研究结果表明:单腔变油孔型式较单腔定油孔型式提高了缓冲器的缓冲效率、双腔定油孔型式较单腔定油孔型式在大的下沉速度下降低了缓冲器的过载。
Taking the landing gear and main landing gear of civil aircraft as the research objects, the program of parameter design of the civilian aircraft’s bumper is developed by using Delphi and SQLServer. The landing gear adopts the design parameters of the single-cavity fixed-hole type and double-cavity fixed-port type buffer. Then the virtual prototype of the nose landing gear and the main landing gear are respectively established based on the ADAMS / Aircraft module, and the simulation of off- Simulation results meet the requirements; Finally, the simulation results of landing gear bumper different types of comparative analysis. The results show that the single cavity variable oil hole type improves the buffer efficiency compared with the single cavity fixed oil hole type. The double cavity constant oil hole type reduces the shock absorber overload.