建立了拣选路径的数学模型，明确定义了其目标函数以及约束条件，通过对拣选路径优化问题的数学模型的分析，采用基于字符编码的混合遗传算法来求解。

Furthermore under the analysis of such mathematic model of the sorting route optimum problem, that function is resolved by the application of the mix genetic arithmetic based on character code.

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将缩张算法加以改进，较大程度地减少目标函数的访问次数，既可运用到规模和难度较大的约束非线性规划问题，也可运用到整数及混合规划问题。

The Contraction expansion algorithm was improved by greatly reducing visiting objective function, so it could solve the large scale, integer and combined constrained nonlinear programming.

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对混合励磁爪极发电机进行了优化，优化变量为永磁体的几何参数，目标函数是发电机的输出电流。

The output current of the hybrid excitation claw-pole alternator is optimized in terms of different parameters of permanent magnets.

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