基于可拓工程理论的工业企业总图设计方案评价

通过梳理总图设计方案评价思路的演变过程，提出以处于可行方案经典集合外的“理想解”为方案评价标尺的拓展量化分析思路；并据此将可拓工程理论引入总图设计方案评价，设计了方案评价的物元分析模型。该模型通过特征指标标准化构作可行方案物元，并依据特征指标的取值范围获取理想参照物物元，进而在考虑指标权重的基础上借助测算并对比各可行方案物元与正、负理想参照物物元之间的综合贴近度，实现方案的评价与优选。结合某机械厂的总图设计方案评价实例，验证了基于可拓工程观点的总图设计方案评价具有可操作性与简洁有效性。

Evaluation of Factory Layout Schemes Based on Extension Engineering Theory

In the existing factory layout design,a scheme is obtained by making comparison among a set of candidate schemes.However,a better solution may be obtained if comparison is done with regard to an ideal scheme(either optimal or worst) that is not in the set of the candidate schemes.Based on this idea,an extended quantitative analysis method with ideal solutions as references is presented.A matter element analysis model by using the extension engineering theory is developed to implement this method.In the model,the matter elements of schemes,including the best and worst reference schemes are obtained by standardization and eigenvalue analysis of the evaluation indexes.Then,by determining the weights of the evaluation indexes,it can calculate the distance between a scheme and a reference scheme.In this way,a satisfactory scheme can be obtained.A case study from a machining factory is used to show the results obtained.