起落架着陆分析模型试验修正研究

Research on modification of landing gear landing analysis model test

建立了两轮支柱式起落架着陆动力学仿真分析模型,并基于某型飞机的落震试验结果,通过单参数修正和组合参数修正方法,逐步逼近落震试验结果,修正后的着陆分析模型的仿真分析结果与试验结果吻合度较高。通过多个工况的分析与试验结果对比,进一步验证了分析模型的鲁棒性,从而表明着陆分析模型修正结果能够真实反映起落架的动态特性。

In this paper,a landing gear landing dynamics simulation analysis model is established,and based on the drop test results of a certain aircraft,the test results are gradually approximated by single parameter correction and combined parameter correction methods.The simulation analysis results of the modified landing analysis model are in good agreement with the test results.The robustness of the analysis model is further verified through the comparison between the analysis and test results of several drop test conditions,which indicates that the modified landing gear simulation model can truly reflect the dynamic characteristics of the landing gear.