Mathematical Modelling and Dynamic Analysis of a Direct-Acting Relief Valve Based on Fluid-Structure Coupling Analysis

Figure 4

2-D and 3-D phase portraits of the valve element in both the axial and vertical directions at the water depths. (a) 100 m axial vibration, (b) 100 m vertical vibration, (c) 150 m axial vibration, (d) 150 m vertical vibration, (e) 300 m axial vibration, and (f) 300 m vertical vibration, respectively.

(a)

(b)

(c)

(d)

(e)

(f)