Research Article
Experimental Study and Life Prediction of Bolt Loosening Life under Variable Amplitude Vibration
Table 7
Variable amplitude test results of “from big to small.”
| Item | Initial preload (kN) | 0.8 mm vibration times when reaching 80% residual preload | 0.6 mm vibration times when reaching 70% residual preload |
| Value | 26.95 | 1546 | 1464 |
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