针对变型设计中的工程约束满足问题,将工程参数与尺寸参数放入同一个网络,建立了包含尺寸约束和工程约束的网络模型.对该模型进行去环和分层,使其与有向树图有着相似的拓扑结构.通过子图的搜索,在子图中运用回溯算法进行网络的约束求解,使产品满足工程约束条件.最后以轴的设计为例,通过与尺寸驱动的变型设计方法相对比,验证了上述方法的可行性.%Aiming at the problem of the engineering constrain satisfaction of variant design engineering pa-rameters and dimension parameters are put into a same network and then a network model including parame-ter constraints and dimension constraints is established. The network model is performed for delete-loop and layering for the sake of its topology similar to directed tree graph'' s. In order to make product meet the engi-neering constraints backtracking algorithm is used for conflict resolution of sub-graph. In the end, compared with variant design method of dimension driven, the feasibility of the method above is verified by taking an example of a shaft.
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