OS-V: 0386 Vibrating Sphere
Test No. CA1Modal Frequency Response Analysis test.
Benchmark Model
The model is a sphere with 1m Radius. The frequency spectrum of the sound pressure level is generated by the pulsating sphere at 15m from its center. The considered frequency range is from 4 to 500 Hz.
First order CQUAD4 elements are used for Sphere. Due to symmetry, only one-eighth of the sphere needs to be discretized by 48 elements. The Sphere is subjected to normal velocity of Vn = 0.1 m/s on all the surface in the radial direction. The surface of the Sphere is fixed.
- Property
- Value
- Density of fluid (air)
- 1.225 kg/m3
- Speed of sound
- 340 m/s
Modal Frequency Analysis Results
Model Files
The model file used in this example include:
<install_directory>/hwsolvers/demos/optistruct/verification/NAFEMS_TEST_CA1.fem