||
给出数值解:
lambda_1~6:
-0.120461482039616 + 22.0277474238835i
-0.340083552651792 + 34.5143994730703i
-0.401742149194278 + 40.3810636308249i
-0.448060400857154 + 47.4479807905313i
-0.836825213304668 + 52.6954978324238i
-1.66132720195092 + 79.4042635550371i
对应的6阶模态频率,模态阻尼为:
Order |
Modal freq. / Hz |
Damping ratio / % |
1 |
3.50587730964481 |
0.546854285688703 |
2 |
5.49340393947853 |
0.985290342110243 |
3 |
6.4271639349108 |
0.994828349489089 |
4 |
7.55191737690531 |
0.944277115878282 |
5 |
8.38780640608438 |
1.58783909348167 |
6 |
12.6403467733154 |
2.09178150746386 |
对应的6阶模态振型为:
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