自工程设计中引入最优化技术以来,机床主轴部件的优化设计一直是机床行业中所进行的研究工作之一。但在工作中经常遇到两个方面的困难。其一是用连续变量优化方法进行寻优,其优化结果的参数值不符合标准量值。用圆整的方法有时会得不到最优解或者得到的是非可行解。其二是到目前为止机床主轴部件还只是对静态特性进行优化, Since the introduction of optimization techniques in engineering design, the optimization design of the spindle components of machine tools has always been one of the research work carried out in the machine tool industry. However, they often encounter two difficulties in their work. One is to use continuous variable optimization method for optimization, the parameters of the optimization results do not meet the standard value. With the rounded method sometimes can not get the optimal solution or get a non-feasible solution. The second is so far the main spindle components only to optimize the static characteristics,