Modeling of Preload Bolted Flange Connection Structure for Loosening Analysis and Detection

<div>Connection surface contact state (4 bolts in the structure under 1500 N impact load on the top). (a) No loosening with 5000 N bolt preload. (b) Loosening to 300 N bolt preload.</div>

Shock and Vibration

fig15

Figure 15

Figure 15: Modeling of Preload Bolted Flange Connection Structure for Loosening Analysis and Detection 