Sound Radiation from Prolate Spheroids

摘要: Spheroidal coordinates and wave functions are used to analyze the sound radiation from a prolate spheroid whose surface vibrates in an arbitrary pattern. Expressions derived for pressure distribution, velocity amplitude, impedance, directivity factor each spheroidal mode. Numerical results two special examples: (1) rigid‐body vibration of thin spheroid, (2) “accordion‐like” spheroid.