Research Article
Frequency Response of an Impacting Lap Joint
Table 4
The first three natural frequencies in rad/sec for two values of
.
| | States | | 5 (“soft” contact) | 5000 (“hard” contact) | | Active springs | | | | | | |
| | 1 | No contact | 41.5 | 260.4 | 729.1 | 41.5 | 260.4 | 729.1 | | 2 & 4 | or | 94.4 | 277.4 | 734.92 | 182.0 | 588.4 | 1223.1 | | 3 & 5 | or | 51.3 | 268.5 | 729.0 | 116.1 | 728.7 | 999.0 | | 6 & 7 & 8 & 9 | & or & or & or & | 101.6 | 284.2 | 734.9 | 538.6 | 909.0 | 1925.4 |
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