Numerical and Experimental Dynamic Analysis of IC Engine Test Beds Equipped with Highly Flexible Couplings

Table 6

70 Sh configuration. (a) List of experimental resonances. (b) List of numerical (FE) natural frequencies, in percentage of .

(a) 70 Sh: experimental frequencies

Mode 1	6%–8%
Mode 2	24%–30%

(b) 70 Sh: numerical results

Mode 1	5.1% [1st TG]
Mode 2	13% [1st LC]
Mode 3	25.7% [2nd TG]
Mode 4	37.2% [2nd LC]
Mode 5	60.2% [3rd TG]
Mode 6	60.4% [3rd LC]
Mode 7	83.6% [1st AF]
Mode 8	85.1% [1st BS]