发动机试验室安全罩包容性分析

Containment Analysis of Engine Lab Safety Hood

针对由于涡轮飞散造成的发动机试验室安全问题,利用Ansysworkbech Autodyn软件进行非线性结构动力学分析,计算安全罩包容性。首先根据涡轮典型飞散形式进行输入分析,简化仿真模型,降低计算时间;然后根据现有安全罩厚度利用仿真软件计算分析其包容性,并计算得出安全罩被击穿时的临界厚度;最后通过安全性评价,确认现有安全罩设计厚度可完全满足发动机试验室安全要求。

For the scattering fragments of turbine,the analysis of nonlinear structural dynamics for scattering fragments was carried out with the Ansysworkbech Autodyn software and the containment of safety hood was calculated.Based on the scattering modes of fragment,the input analysis was carried out,the model was simplified and the calculation time was also reduced.According to the existing thickness of safety hood,the containment of safety hood was calculated and analyzed with simulation software,and the critical thickness of hood breakdown was acquired.Finally,the existing thickness of safety hood was proved to meet the safety requirements of engine test.