Automatic Generation of 3D Assembly Dimension Chain Based on Feature Model

This paper presents a method of automatic generate 3D assembly dimension chain based on feature model. Use attributes set of feature to express the information of parts and their relationships, an attributes set mainly include: information of target feature, information of features that has dimension or mating relations with target feature and information of the relationship. Then the transmit network between features will be generated, searching through the transmit network and the assembly dimension chain group are extracted finally. In the end a case study is given to verify the feasibility of proposed method.