基于梯度遗传算法的压电换能器稳健优化设计

悬臂梁式压电振动换能器是一种新型的供电装置,其设计受到加工过程等不确定因素影响。从遗传算法和田口稳健设计的理论方法出发,结合悬臂梁式压电振动换能器的理论模型,设计了以输出平均功率为优化目标的稳健优化设计方案。利用目标函数的梯度信息加速遗传算法的收敛,以遗传算法产生的每一代种群的最优个体作为内表中的一组数据,利用外正交表计算优化目标的信噪比,对优化目标信噪比进行对比分析,得到一组最优设计参数。将该组数据对应的换能器与其它优化方法得到参数对应的换能器性能进行对比,表明该组参数下,换能器有较好的工作特性。

Robust Optimization Design for Cantilever-type Piezoelectric Vibration Transducer Using Gradient-Assisted Genetic Algorithm

Cantilever-type piezoelectric vibration transducers are a new class of power supply devices with a variety of uncertain factors,especially manufacturing errors.Based on Taguchi robust design,genetic algorithm and the theoretical model of cantilever-type piezoelectric vibration transducers,the optimization method of robust design with average power output as the robust optimization objectives is developed.The convergence speed of genetic algorithm is accelerated by the gradient information of objective funct...