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基于隐式重启动Krylov-Schur和Jacobi-Davidson两种算法和PANDA并行计算框架,构建了大规模模态分析及基础随机振动响应并行计算体系;将并行求解体系应用于对典型乘波体外形高超声速飞行器模型及动力学特性仿真,计算规模达到1 400 W自由度,并行核数达到1024核;模态结果与商业软件对比,其前100阶固有频率相差不超过0.01%,振型完全一致,1024核并行与16核并行计算效率提高了约60倍,并验证了算法的精确性及大规模并行计算时的高效性,获得了高超声速飞行器的低阶动力学响应特性。
Based on implicit restarting Krylov-Schur and Jacobi-Davidson algorithms and PANDA parallel computing framework, a parallel computing system of large-scale modal analysis and basic random vibration response is constructed. Supersonic aircraft model and dynamics simulation. The calculated scale reaches 1 400 W and the number of parallel nuclei reaches 1024. Compared with the commercial software, the modal results show that the first 100 natural frequencies differ by no more than 0.01% 1024 nuclear parallel and 16 nuclear parallel computing efficiency increased by about 60 times, and verify the accuracy of the algorithm and large-scale parallel calculation of high efficiency obtained hypersonic low-order dynamics response characteristics.