Abstract
To set up the dynamic FEM model of a high-duty diesel's lower crankcase with sufficient precision, modal correlation research on tested and calculated modes has been fulfilled. MACs between each mode pairs, CoMACs and ECoMACs on each node of modal testing model have been calculated. On the assistant of modal shape comparison, MACs could afford information about correlating relations between tested and calculated mode groups. CoMACs and ECoMACs have pointed out the direction of structure modification to FEM model. The results of the study show that the analytic model built has a certain degree of accuracy.
| Original language | English |
|---|---|
| Pages (from-to) | 58-62 |
| Number of pages | 5 |
| Journal | Journal of Beijing Institute of Technology (English Edition) |
| Volume | 13 |
| Issue number | 1 |
| Publication status | Published - Mar 2004 |
Keywords
- Diesel
- FEM
- Lower crankcase
- Modal analysis
- Modal correlation