基于遗传算法的转子叶片优化排序

航空发动机转子叶片按照静质量矩和频率进行优化排序对于减小叶片安装造成的不平衡量以及防止发动机颤振具有重要的意义。遗传算法是求解这类排序问题的有效方法。某型航空发动机压气机叶片排序问题可视为一个无约束多目标优化问题,为此根据目标优化的优先级将无约束多目标优化问题转化为约束单目标优化问题,建立起了叶片排序的数学模型。在此基础上,采用罚函数法进行了适应度函数设计。采用局部寻优算子来加强局部搜索能力,加速其全局优化的收敛性。大量实际数据计算结果表明,方法具有排序结果稳定、效果满意的优点,达到了对叶片优化排序的目的。

Optimum Arrangement of Rotor Blades Based on Genetic Algorithms

It's important to arrange aeroengine rotor blades as optimum as possible in order to reduce unbalance of assembled blades and to prevent engine flutter.Genetic algorithms are perfect methods for solving such kind of problems.The arrangement problem in this paper can be regarded as non-constrained multi-objective optimization problems.By converting the non-constrained problem into constrained single-objective optimization problem according to the priority of optimized objects,a mathematical model for blades ...