基于INTESIM5.0的气缸体静力学大规模分布式并行计算

Large Scale Distributed Parallel Computation of Cylinder Block Static Analysis Based on INTESIM5.0

针对现如今汽车工业对高精度、高效率数值仿真的迫切需求,研究了支持分布式并行计算的工业仿真软件INTESIM5.0对于大规模精细仿真的适用性。研究方法包括建立3个网格规模不同的气缸体模型,分别使用INTESIM和某商软模拟100万网格模型,对比两者结果以验证INTESIM的计算正确性。使用INTESIM在神威·太湖之光的商用计算系统,模拟1亿网格模型,发现并行加速比和并行效率符合一般规律。对比3个模型的INTESIM求解结果,论证精细建模的优越性。研究结果表明INTESIM完全胜任超大规模并行计算,从而以低时间成本获得高精度仿真结果,有助于提升汽车发动机缸体的可靠性和耐久性优化效率。

Aimed at the urgent need of high precision and high efficiency numerical simulation in the automobile industry, the applicability of the industrial simulation software INTESIM 5.0 supporting distributed parallel computing for large-scale fine simulation is studied. The research method is as follows: 3 cylinder models with different grid sizes are established, INTESIM and a commercial software are used to simulate 1 million grid models respectively. The results of 2models are compared to verify the correctness of INTESIM calculations. INTESIM is used to simulate 100 million grid models on the commercial computing system of Sunway TaihuLight, it is found that the parallel speed up ratio and parallel efficiency conform to the general law. The advantages of fine modeling are demonstrated by comparing the results of 3models solved by INTESIM. The results show that INTESIM is fully competent for large-scale parallel computing, to obtain high-precision simulation results with low time cost, which is helpful to improve the optimization efficiency of the reliability and durability of automobile engine cylinder block.