Abstract
In order to represent benchmark, fluctuation trend and fluctuation value of geometric shape and dimension of component, a tolerance modeling approach based on directed graph was presented. A 5-tuple was used to represent meta-tolerance. The construction process of tolerance model was as following: firstly defining the reference frame and Key Features (KFs) related to geometric shape and dimension, then describing tolerance relationship between KFs by directed arc of graph and a unit-vector was utilized to represent fluctuation trend of tolerance. All meta-tolerance models were set up based on directed graph. Then the tolerance model was constructed based on sum operation about graph for all meta-tolerance models. And a tolerance modeling system integrating with CATIA V5 was developed. Finally, the approach was validated by an example.
| Original language | English |
|---|---|
| Pages (from-to) | 1234-1238 |
| Number of pages | 5 |
| Journal | Jisuanji Jicheng Zhizao Xitong/Computer Integrated Manufacturing Systems, CIMS |
| Volume | 11 |
| Issue number | 9 |
| State | Published - Sep 2005 |
Keywords
- Directed graph
- Key feature
- Meta-tolerance
- Tolerance modeling