Harmonic variations and propagation of vibration isolation structure for SSP podded propulsion

Abstract

The response of a structure to the vibration caused by Siemens-Schottel- Propulsor (SSP) is studied in this paper, which is determined by the coupling effect between ship structure and SSP vibration. According to the structure of wave propagation equation and the characteristics of vibration isolation, simple harmonic variation and propagation are theoretically calculated in the different vibration materials. Therefore, it is revealed the characteristics of wave propagation in the time domain and frequency domain. The results show that selection for the vibration isolation and structural SSP mounting provides a basis for SSP cushion materials. © 2011 Published by Elsevier Ltd.