PARAMETRIC COMPUTER AIDED DESIGN OF NON-H CLOSED EPICYCLIC GEAR TRAINS BASED ON MULTI-OBJECTS FUZZY OPTIMIZATION

ZHOU Xin¹  ZHOU Haibo^{1, 2}  WANG Guilian¹  MA Xu²

(1. College of Mechanical Engineering, Jiamusi University, Jiamusi 154007;
2. College of Biological and Agricultural Engineering, Jilin University, Changchun 130025)

Abstract: Non-H closed epicyclic gear trains characterized by large transmission ratio, high power, high efficiency, simple and compact structure are researched on ranges of the modeling, the fuzzy optimization design of multi-objects and multi-constraints and the parameterized design of assembly drawing and main part drawings. Based on analyzing the structure and characteristics of non-H closed epicyclic gear trains, a mathematic model of the fuzzy optimization design of small volume and high efficiency is put forward, and the non-fuzzy process of the fuzzy factors are accomplished. The results of the optimization design show that the method of the fuzzy optimization design of multi-objects and multi-constraints takes into account not only the whole property of the gear trains but also the fuzziness of objects and constraints, and gets an optimum level of the entire objects. By computer aided design (CAD) technology, the design pattern of non-H closed epicycle gear trains is standardized. The software of non-H closed epicycle gear trains parametric CAD is programmed. The parametric design of the complex gear trains is realized.

Key words: Epicyclic gear train Parametric design Optimization Multi-objects Fuzzy sets

CLC No: TH132.425

黑龙江省自然科学基金(E0212)、黑龙江省教育厅基金(10541214)和吉林省科技发展计划基金(20040545)资助项目. Received 20060713, received in revised form 20061231