摘要
基于有限元分析软件PAM-Crash及其提供的SPH法,建立了鸟撞风挡的有限元模型。对鸟击风挡进行了有限元分析,仿真结果显示SPH鸟体能够很好地模拟鸟撞风挡的过程,尤其是鸟体破碎和飞溅的情况;确定了风挡可能产生塑性应变的位置;选取多个撞击位置,得出不同撞击位置产生的塑性应变云图,并进行比较分析,得出撞击位置对于风挡的影响。
A finite element model for the bird- impact of windshields was established by the dynamic explicit finite element analysis software PAM- crash and the smoothed particle hydrodynamics （SPH） method. The finite element analysis of bird- impact was simulated by the established model. The simulation indicate that the SPH bird can correctly show the process of impact, especially the breaking- up and splas- hing of the bird. The position where plastic strain could develop was confirmed. The influence of the impacting location was obtained by analyzing the plastic strain contours of different locations of bird- irapact.
出处
《航空计算技术》
2016年第5期112-114,共3页
Aeronautical Computing Technique
