摘要
鸟体本构模型及其参数研究是研究鸟撞问题的重点和难点之一。基于参数反演的思想,结合遗传算法,建立基于ISIGHT,PAM-CRASH与MATLAB联合仿真的优化模型。结合鸟撞铝板试验数据,获得了适用于中等冲击速度(100 m/s左右)的鸟体本构模型参数。并将优化后的结果与试验数据进行对比,两者吻合较好,证明参数反演方法有效。优化方法为获得鸟体本构参数提供了参考,也为后续的鸟撞分析提供了依据。
The research on the constitutive model and its parameters of bird is one of the difficulty of bird strike problem.The optimization model is established which is based on ISIGHT,PAM-CRASH and MATLAB using the parameter inversion,combined with the genetic algorithm.With the test data of bird strike aluminum alloy plates,the model parameters of the bird which is suitable for the medium speed impact speed（about 100 m/s） was obtained.The optimization results are proved well by comparison with the experimental results and show that the method is effective.The realization of the optimization method offers reference for obtaining the parameters of the bird constitutive model and provides the basis for the subsequent bird strike analysis.
出处
《航空计算技术》
2017年第1期47-50,共4页
Aeronautical Computing Technique
基金
国家自然科学基金青年科学基金项目资助(11302105)
航空科学基金项目资助(2014ZF52074)
江苏省高校优势学科建设工程基金项目资助
