
大规模柴油机动力学抗冲击并行仿真计算
Parallel computing for large scale anti-shock dynamic simulation of diesel engine
针对柴油机动力冲击仿真问题,采用显式动力算法对柴油机复杂结构进行详细建模与精细仿真,并对处于不同工作状态柴油机开展机构运动、动力冲击的单独及综合模拟。为满足计算调试及多组工况所需大规模计算需求,借助高性能计算资源;通过不同计算平台多核并行计算及性能数据比较,分析独特并行加速现象、探求合理并行加速策略。计算表明,动态仿真方法有利于柴油机运动及动力问题一体化研究。该结论可为柴油机类似复杂冲击问题研究提供参考。
The explicit dynamic algorithm is adopted to perform detailed modeling and refined simulation for dynamic anti-shock problem of diesel engine. Individual and synthesized analyses are conducted as to mechanical motion and dynamic shock simulation with different working conditions. High-performance computing(HPC) resources are utilized to meet the challenge of large scale computing requirement due to debugging and load cases. Through multi-core parallel computing and performance data comparison on different platforms, each parallel speedup phenomenon is analyzed to explore reasonable parallel acceleration strategy. The results shows that such dynamic simulation method makes for integrated kinetic and dynamic characteristics research of diesel engine, and HPC resource provides imperative guarantee for solving and deeper investigation.
柴油机 / 显式算法 / 机构运动 / 动力冲击 / 并行计算 {{custom_keyword}} /
diesel engine / explicit algorithm / mechanical motion / dynamic shock / parallel computing {{custom_keyword}} /
/
〈 |
|
〉 |