生长速度对体点导热问题仿生优化结果的影响

Effects of Growth Velocity on the Results of Volume-to-Point Heat Conduction Problem by Bionic Optimization

本文以体点导热问题为例,通过数值模拟计算,从点生长速度和面生长速度两个方面探讨了仿生优化中生长速度对体点导热问题优化结果的影响。由于在网格密度相同的情况下,每次生长出来的高导热率材料数量不同,优化结果有明显差异。本文在此基础上加入自组织过程,消除生长速度对优化结果的影响。在点生长速度相同的情况下,对不同网格密度下的求解区域进行计算,对面生长速度对优化效果的影响进行了讨论。

The effect of the growth velocity on the results of Volume-to-Point(VP) heat conduction problem by bionic optimization is numerically investigated from the aspects of point growth velocity and area growth velocity.The optimization results are apparently different at the same grid size due to the amount of generated high thermal conductivity materials is different at each solution step.A self-organizing process is introduced to eliminate the effect of the point growth velocity on the optimization results.The effect of area growth velocity on the optimization results is discussed through the numerical calculation at different grid sizes with the same point growth velocity.