Roll Reduction of Yachts by Using Electromagnetic Shunt Damping Absorbers
Li Peichao 1 Xie Shilin 1 Yan Bo1 Chen Chaohe2 Zhang Xinong 1
1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xian JiaoTong University, Xian 710049；2. Naval Architecture and Ocean Engineering R & D Center of Guangdong Province, South China University of Technology, Guangzhou, 510641
Abstract：The yacht-roll affects the stability and safety of ships, and also worsens the living comfortableness on board. Therefore, the roll reduction is always paid more attention by designers and researchers. Traditional treatments by using antiroll fins, sometimes, cannot well satisfy the safety requirement in some violent sail conditions. This paper introduces an electromagnetic shunt damping absorber to improve the stability and safety of the yacht. The governing equation of a yacht coupled with such an absorber is derived. The dynamic parameters of the absorber are determined by particle swarm optimization algorithm. The numerical simulation is conducted based on the optimal parameters, and results show that the absorber presented can well reduce the yacht roll.
2013, Vol. 32 
