房车空调顶盖抗冰雹冲击性能仿真分析

为了解决房车空调顶盖的抗冰雹冲击问题，建立了房车空调和冰雹的有限元模型。基于显式积分非线性动力学理论，利用LS-DYNA软件，综合房车行驶速度、冰雹自由落体速度、冰雹和顶盖自身机械性能等，通过仿真分析研究，给出了不同冲击点位置和房车行驶速度下的响应，校核了房车空调顶盖抗冰雹冲击的性能。

In order to solve the problem of 'hail impact resistance' of the RV air conditioning roof, a finite element model of the RV air conditioning and hail was established. Based on the explicit integration nonlinear dynamic theory and using LS-DYNA software, the simulation analysis was conducted by considering the RV driving speed, hail free-fall velocity, and mechanical properties of hail and roof. The response of different impact point positions and RV driving speeds was studied, and the performance of the RV air conditioning roof against 'hail impact' was verified.