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针对空间豆荚杆展开机构的设计,利用显式动态算法和高性能计算资源,对豆荚杆盘卷收拢和展开过程进行了非线性准静态仿真。为满足计算调试和多组工况带来的大规模计算需求,通过计算耗时、应力曲线和能量曲线的对比分析,确立了以提高加载速率为主的显式计算并行加速合理策略。计算过程和结果分析表明,动态仿真方法完全可以用来对豆荚杆机构的功能设计、结构改型和参数调整进行预知仿真,并为试验提供指导和参考。
Aiming at the design of space pod rod unfolding mechanism, nonlinear quasi-static simulation of bean pod coil unwrapping and unfolding process is carried out by using explicit dynamic algorithm and high performance computing resource. In order to meet the needs of large-scale calculation caused by calculation and commissioning and multi-group conditions, a reasonable strategy of parallel computing with explicit calculation to improve the loading rate is established through the comparative analysis of time-consuming, stress and energy curves. The calculation process and result analysis show that the dynamic simulation method can be used to predict the functional design, structural modification and parameter adjustment of the pod body, and provide guidance and reference for the experiment.