论文部分内容阅读
四边形板内开孔后,其原有的力学性能要发生改变。开孔的形状、位置和转动等因素都会对其性能产生影响。采用超椭圆方程对开孔边界进行数学描述。通过遗传算法对开孔进行优化设计,使开孔板的动力特性达到最优。通过一些典型算例验证所用方法的可行性,以及优化结果的准确性。计算结果表明对开孔进行优化设计,可以明显改善板的动力性能。
After the opening of the quadrangular plate, its original mechanical properties to be changed. The shape, location, and rotation of the hole all affect its performance. The hyperelliptic equation is used to describe the aperture boundary. Through the optimization of the open hole by genetic algorithm, the dynamic characteristics of the perforated plate are optimized. Some typical examples verify the feasibility of the method used and the accuracy of the results. The calculation results show that the optimized design of the hole can obviously improve the dynamic performance of the plate.