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

<div>Acceleration signal EMD decomposition and frequency response curve. (a) Tightening preload of 5000 N. (b) Tightening preload of 5000 N with one bolt loosened to 3000 N. (c) Tightening preload of 5000 N with one bolt loosened to 300 N.</div>

Shock and Vibration

fig29

Figure 29

Figure 29: Modeling of Preload Bolted Flange Connection Structure for Loosening Analysis and Detection 