A tolerance analysis method for complex mechanical products based on meta-action unit
| Autor: | Mu Zongyi, Li Jian, Wang Hong-wei, Zhang Gen-bao, Ran Yan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Tolerance analysis
business.industry Computer science Mechanical Engineering media_common.quotation_subject Modular design Industrial and Manufacturing Engineering Field (computer science) Manufacturing cost Computer Science Applications Reliability engineering Mechanical system Failure mode effects and criticality analysis Machining Control and Systems Engineering Quality (business) business Software media_common |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 117:1377-1393 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-021-07790-0 |
| Popis: | The tolerance of parts has an important impact on the quality of mechanical products. Optimizing the tolerance of parts can improve the quality and performance of mechanical products. For complex mechanical system, the number of parts is large, and the structure is extremely complex. It is inconvenient to use traditional method for tolerance modeling and analysis. In order to simplify the difficulty of modeling and analysis of complex mechanical system, the meta-action theory is introduced into the field of tolerance analysis. The structure of the mechanical system is decomposed into basic meta-actions by the “function-motion-action” (FMA) method. Then, taking the meta-action as the basic unit, the tolerance modeling and analysis are carried out. By ensuring the assembly accuracy of meta-action, the assembly accuracy and performance of the whole machine are ensured. The modular analysis of mechanical system is realized, and the difficulty and complexity of analysis are reduced. The manufacturing cost of products includes parts machining cost and assembly cost. In order to accurately evaluate the comprehensive manufacturing cost of products, the FMECA method is used to calculate the assembly difficulty coefficient, and the traditional cost-tolerance model is modified to obtain the comprehensive production cost model. Finally, the effectiveness of the proposed method is illustrated by an engineering example. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|