CAJ | 학술논문

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。
이민용비궤전기락가화주기락가위연구대상,수선운용Delphi화SQLServer개발료민용비궤완충기삼수설계정서,계산료전기락가채용단강정유공형식화단강변유공형식、주기락가채용단강정유공형식화쌍강정유공형식적완충기적설계삼수;연후기우ADAMS/Aircraft모괴분별건립료전기락가화주기락가적허의양궤,병진행락진방진분석,방진결과부합요구;최후통과방진결과진행기락가완충기불동형식적대비분석。연구결과표명：단강변유공형식교단강정유공형식제고료완충기적완충효솔、쌍강정유공형식교단강정유공형식재대적하침속도하강저료완충기적과재。
The nose landing gear and main landing gear are chosen as subjects to investigate in this paper.At first,by using Delphi and SQL Server,the parameter design program of the shock absorber is developed.The parameters of single-acting shock absorber,single-acting shock absorber with a metering pin for the nose landing gear and single-acting shock absorber,double-acting shock absorber for the main landing gear are calculated.Then the virtual prototypes of the nose landing gear and main landing gear for dynamic analysis of landing gear impact are established on ADAMS/Aircraft.There is a good correspondence between the simulation results and required results.Finally,the comparison analysis of different shock absorber types is given.As a result,the efficiency is higher using the single-acting shock absorber with a metering pin.The load factor is lower using the double-acting shock absorber in the condition of the high sink speed.