水下航行器发动机振动传递控制仿真与试验研究  

Simulation and Experimental Study on Engine Vibration Transmission Control for Underwater Vehicles

作　　者：王双立 贺佩韬 耿小明 谢溪凌[1,2] 张志谊[1,2] WANG Shuangli;HE Peitao;GENG Xiaoming;XIE Xiling;ZHANG Zhiyi(State Key Laboratory of Mechanical Systems and Vibration,Shanghai Jiaotong University,Shanghai 200240,China;Institute of Vibration,Shock and Noise,Shanghai Jiaotong University,Shanghai 200240,China;The 705 Research Institute,China State Shipbuilding Corporation Ltd,,Xi′an 710077,China)

机构地区：[1]上海交通大学机械系统与振动全国重点实验室,上海200240 [2]上海交通大学振动、冲击与噪声研究所,上海200240 [3]中国船舶集团有限公司第705研究所,西安710077

出　　处：《噪声与振动控制》2025年第2期1-5,共5页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(52101363)。

摘　　要：发动机振动经两侧支承结构传递到壳体表面,形成的振动声辐射使水下航行器易被探测。针对发动机振动传递控制问题,在有限空间内设计一种新型的主被动隔振支承,以替代传统的法兰支承。采用有限元方法建立振源-隔振支承-壳体耦合系统振动模型,分析振源振动传递特性,并结合自适应控制算法进行控制效果仿真。构建振源-隔振支承-壳体试验系统,验证主被动支承结构对振动传递的控制效果。仿真及试验结果表明,主被动隔振支承可使10~500 Hz频带内壳体主要线谱最大衰减26 dB。Sound radiation of the hull structure of an underwater vehicle caused by the engine vibration may lead to the easy detection of the vehicle.In order to control vibration transmission from the engine to the hull,a new type of active and passive vibration isolation supports was designed to replace the traditional flange support of the engine.The model of a vibration source-isolator-shell coupled system was established by the finite element method and used to analyze the characteristics of vibration transmission as well as the effectiveness of the adaptive control.A vibration source-isolation abutmentshell test system was constructed to verify the performance of the active and passive support in vibration transmission control.The simulation and experimental results have demonstrated that the active and passive vibration isolation supports can suppress tonal vibration by at most 26 dB in the frequency band of 10-500 Hz.

关 键 词：振动与波 主被动隔振支承 自适应控制 振动传递 有限元分析 

分 类 号：TB53[理学—物理]