Research Article
Numerical and Experimental Dynamic Analysis of IC Engine Test Beds Equipped with Highly Flexible Couplings
Table 5
45 Sh configuration. (a) List of experimental resonances. (b) List of numerical (FE) natural frequencies, in percentage of
.
| (a) 45 Sh: experimental frequencies |
| | Mode 1 | ~3% | | Mode 2 | 14%–16% | | Mode 3 | 32%–38% | | Mode 4 | ~68% |
|
|
| (b) 45 Sh: numerical results |
| | Mode 1 | 2.9% (1st global torsional mode [1st TG]) | | Mode 2 | 7% (1st local mode of coupling [1st LC]) | | Mode 3 | 14.9% (2nd global torsional mode [2nd TG]) | | Mode 4 | 19.7% (2nd local mode of coupling [2nd LC]) | | Mode 5 | 36.8% (3rd local mode of coupling [3rd LC]) | | Mode 6 | 44% (3rd global torsional mode [3rd TG]) | | Mode 7 | 50.6% (1st axial mode middle flange [1st AF]) | | Mode 8 | 69.7% (1st bending mode output shaft [1st BS]) |
|
|
