锻压技术

基于模糊层次分析法的冲床下死点定位精度评价

英文标题：Evaluation of bottom dead center positioning precision for mechanical press based on fuzzy analytic hierarchy process

作者：宋恭杰潘晓彬

单位：宁波大学

关键词：冲床模糊层次分析法下死点定位精度

分类号：TG385

出版年,卷(期):页码：2014,39(6):85-89

摘要：

为了对冲床下死点的定位精度进行综合评价，将层次分析法与模糊综合法相结合，对冲床下死点精度进行评价。提出了下死点平均值BDCa、下死点十点高度BDCz、下死点均方差BDCq和下死点最大波动BDCy 4个评价参数；利用层次分析法建立了下死点精度评价指标体系及确定各评价指标权重；引入了模糊理论，通过模糊层次分析法研究了下死点定位精度的多参数评价方法。该综合评价方法可以尽量避免人为因素造成的误差，使评价具有一定的客观性与合理性。

In order to give a more comprehensive evaluation to positioning precision of press bottom dead center of mechanical press, a new approach to evaluate the bottom dead center precision was used combining analytic hierarchy process(AHP) and fuzzy comprehensive evaluation(FCE). Four evaluation parameters were proposed, which included the bottom dead center average BDCa, bottom dead center ten point height BDCz, bottom dead center mean square deviation BDCq and bottom dead center maximum fluctuation BDCy. The AHP was used to establish the evaluation indices system of the bottom dead center precision evaluation and determine the weights for all evaluation indices, while the fuzzy theory was introduced to analysis the multi-parameter evaluation for the bottom dead center positioning precision combining the fuzzy analytic hierarchy process method. The evaluation has a certain objectivity and rationality to avoid the error caused by human factors as far as possible.

基金项目：

宁波大学研究生科研创新基金资助项目（Doo620138000）；宁波大学学科资助项目（xk111069）

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