实值编码遗传算法的行星齿轮传动优化

Real Coded Genetic Algorithm for Planetary Gear Transmission Optimization

角度变位２Ｋ－Ｈ行星齿轮的优化设计是一个多峰函数优化问题，用传统确定性的、计算式方法容易陷入局部最优解．为达到全局优化的目的，采用实值编码遗传算法进行优化．首先给出了一个通用性强、以体积最小为优化目标的２Ｋ－Ｈ传动机构的优化模型，然后描述一种实值编码遗传算法的实现，并将之应用于角度变位行星传动的优化设计．其优化结果与单纯形的比较表明，遗传算法更能脱离局部解而取得更优解，在工程设计中具有一定的应用价值．

To globally optimize the 2K H type planetary gear transmission system with angle modification, which is a multi modal function optimization problem, this paper described a general optimization model and used a real coded genetic algorithm to solve the problem. The algorithm successfully obtained better optimal results in comparison to the traditional method, Simplex. It shows that the algorithm can avoid being trapped into local optimum.