用该近似函数形成结构优化原问题的序列近似问题，再用约束变尺度法解近似问题。
The improved approximate expressions are proposed to create the sequential approximation problems which are solved with the constrained variable metric method.
采用了约束变尺度法建立了干扰子弹的优化设计数学模型，且编制了优化设计软件，计算出了所优化的结果。
By using the Constrained Variable Metric method, an optimization design model of the cartridge is established, and created a computer program, and then worked out the optimized result.
从应用角度出发，首先，将约束变尺度法改进为一般约束条件，通过适当选择差商形式和对一维不精确线性搜索方法的修正，扩大了该方法的适用范围。
Through the suitable selection of difference quotient and correction of the one-dimension inaccuracy linear searching, scope of the improved method is extended.
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