摘要
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 lenticular boom deployable mechanism,an explicit dynamic algorithm combined with high-performance computing resource is adopted to perform non-linear quasi-static simulation of stowing and deploying process.To meet the large-scale calculating demand due to simulation debugging and multiple loadcases,the explicit calculation parallel speed-up strategy is appropriately established by increasing loading rate after comparison and analysis of time cost,stress and energy curves.The results shows that dynamic simulation method can be used to predict the function design,structure reform,and parameter adjustment as well as provide guidance and reference for experiments.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2011年第3期676-682,共7页
Journal of Astronautics
基金
上海市科委专题项目资助(09DZ1110300)
上海市空间飞行器机构重点实验室资助(06DZ22105)
关键词
豆荚杆
显式算法
展开
准静态
并行计算
Lenticular boom
Explicit algorithm
Deployment
Qua-static
Parallel computing
