Mechanism of ovalling vibrations of cylindrical shells in cross flow
Abstract
The mechanism of wind-induced ovalling vibrations of cylindrical shells is numerically investigated using a vortex method. The subject of this paper is limited to a two-dimensional structure in the sub-critical regime. The aerodynamic stability of the ovalling vibrations in the 2nd to 4th circumferential modes is discussed, based on the results of a forced-vibration test. The work done by the unsteady pressures for one cycle of a harmonic motion is computed. The effect of a splitter plate on the aerodynamic stability is also discussed. The consideration on the excitation mechanism is verified by the results of a free-vibration test.
Fields of Study & Subjects
Fluid Dynamics and Vibration Analysis
Vibration and Dynamic Analysis
Aeroelasticity and Vibration Control
Publication details
- Journal / source
- CRC Press eBooks
- Pages
- 1353–1358
- Publication date
- 12 February 2026
- Language
- EN
- Document type
- Book chapter