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在同时考虑组成零件的成本尽可能低和产品损失费用尽量少的条件下来求最优参数设计方案（包括标定值和容差），并与原设计比较。在各个标定值容许的范围内选定一组，考虑各个零件不同容差等级搭配时的情形，然后用计算机模拟出这种动态过程，求得了最佳的参数设计方案，并考虑不同情况，建立了2个模型：在严格要求公差与配合的情况下的参数设计方案（即模型1）和在不考虑公差与配合的情况下的方案（模型2）。
Optimum parametric design (including calibrations and tolerances) is taken into account while accounting for the lowest possible cost of the constituent parts and the minimum cost of the product loss, compared to the original design. In each allowable range of calibration values selected a group, taking into account the different tolerance levels with various parts of the situation, and then use the computer to simulate this dynamic process, obtained the best parameter design, and consider different situations, the establishment of Two models were used: parametric design (model 1) with strict tolerance and fit requirements and a solution (model 2) without regard to tolerance and fit.