CAJ | 학술논문

通过对双气腔油气式缓冲器结构参数的合理设计，可以大大提高缓冲器的缓冲性能．针对某型双气腔油气式缓冲器起落架，首先建立其数学模型，利用动力学仿真软件ADAMS中的Aircraft分析模块对缓冲器性能进行仿真分析，得到一系列试验样本点；基于非线性响应面法，利用所抽取样本点，建立了设计变量和优化目标间的数学关系；以缓冲器缓冲效率为优化目标，支柱最大垂直载荷和最大行程为约束条件，对设计变量进行优化；对优化后结构参数进行模拟仿真分析，结果表明优化后结果与仿真结果偏离误差在1．2％以内，拟合函数可信度较高；优化后缓冲器效率较优化前增大4．6％，优化方法切实有效．在对缓冲器仿真分析的基础上，为起落架缓冲器的设计和改进提供一种优化方法，有一定的实用价值．
통과대쌍기강유기식완충기결구삼수적합리설계，가이대대제고완충기적완충성능．침대모형쌍기강유기식완충기기락가，수선건립기수학모형，이용동역학방진연건ADAMS중적Aircraft분석모괴대완충기성능진행방진분석，득도일계렬시험양본점；기우비선성향응면법，이용소추취양본점，건립료설계변량화우화목표간적수학관계；이완충기완충효솔위우화목표，지주최대수직재하화최대행정위약속조건，대설계변량진행우화；대우화후결구삼수진행모의방진분석，결과표명우화후결과여방진결과편리오차재1．2％이내，의합함수가신도교고；우화후완충기효솔교우화전증대4．6％，우화방법절실유효．재대완충기방진분석적기출상，위기락가완충기적설계화개진제공일충우화방법，유일정적실용개치．
The oleo-pneumatic damper with two air chambers will have optimal performance by the rational design of structure parameter.The landing gear prototyping model should be established based on an existing landing gear, dynamic analysis of the impacting with the run way procedure were simulated with the established model using ADAMS/Aircraft, some data points could be obtained.The function relationship between parameters and optimization ob-ject could be built with sample point based on the weighting nonlinear response surface meth-od.Setting the efficiency of buffer as optimization object, the max vertical load and stroke as constraint condition, the parameters can be optimized.The conclusion suggested that there are 1.2%difference between the optimization results and the simulation results, and the effi-ciency of buffer has 4.6% increases.This paper developed a method of buffer design and improving.