电磁装置快速优化设计的序贯采样技术

Sequential sampling technique for fast optimizing the design of electromagnetic devices

针对工程电磁装置的优化设计问题,提出了一种基于序贯采样技术的快速设计方法.相对于传统的采样技术而言,序贯采样的目的性和针对性更加明确,它利用区间缩减方法快速地缩减了采样的区域,加大了目标区域的采样数目,从而避免了盲目采样带来的计算量的浪费.该方法不仅能用于目标的直接优化设计,也能用于近似模型拟合度的提高.实例分析结果表明,新方法不仅能显著地减少有限元的计算量,还能加快整个设计过程的优化速度.

A fast design method based on sequential sampling technique is presented for optimizing design engineering electromagnetic devices. Compared with traditional sampling techniques, the proposed technique can reduce the design spaces by the space reduction method. Sequential sampling method has a definite sampling purpose and it can avoid the unnecessary waste of purposeless sampiing. Subsequently, the example was investigated. The comparison of the results show that the computation cost of finite element analysis can be saved obviously with this technique. Moreover, it can optimize the design problem directly and improve the fitting accuracy of approximate model. In summary, the proposed method is superior in many respects to direct optimization method and the former sequential optimization method.