1.10.2 Analysis of a point-loaded, fluid-filled, spherical shell

Product: ABAQUS/Standard  

This problem involves the steady-state vibration of a point-loaded spherical shell coupled to an acoustic fluid that fills its interior. It is modeled using axisymmetric shell and acoustic elements. The closed form solution of Stepanishen and Cox (2000) is used for validation of the analysis. The basis of the coupled acoustic-structural vibration capability in ABAQUS is described in Coupled acoustic-structural medium analysis, Section 2.9.1 of the ABAQUS Theory Manual, and Acoustic, shock, and coupled acoustic-structural analysis, Section 6.9.1 of the ABAQUS Analysis User's Manual.

Problem description

Results and discussion

Input files

Reference

Figures

Figure 1.10.2–1 Coupled acoustic-structural vibration model.

Figure 1.10.2–2 Steady-state pressure magnitudes for the acoustic-structural system at 980 Hz.