Dissimilarity calculation based cluster analysis method of module base
To improve the reusability of module base, a cluster analysis method of module base was proposed. The definitions of module base, module reusability, dissimilarity of module case, dissimilarity matrix and cluster center were introduced, and the calculation methods of the dissimilarity, minimum spanning tree and cluster center were al- so presented. The redundant module cases were eliminated through cluster analysis of module base. A bucket of wheel loader's module base was used to demonstrate the rationality and effectiveness of proposed method. If the threshold of dissimilarity was limited to 0. 03, 11 kinds of redundant cases could be eliminated from module base while the initial number was 39, and the reuse degree was raised to 39. 2~. In this case, the maximum error be- tween redundant case and the substitute case was less than 4 ~.