Vibration source Identification method of equipment and its application

this paper develops a vibration source identification method of equipment and examines the underwater noise radiation characteristic of an underwater vehicle. Based on Korihoff theory, assuming that equipment equivalent exciting force and mass are independent with basement and isolators, "equipment-isolator-base" models of considering unbalanced exciting force and moment exerting separately and commonly are established. Vibration source Identification method is thus proposed and experimentally validated. To meet the demands of engineering, this method is used to obtain exciting loads of an underwater vehicle. The underwater noise radiation characteristic of the underwater vehicle is analyzed.