摘要
通过对喷水椎进系统的主要作功体喷水推进泵的全面分析,指出负荷噪声、回流噪声、空化噪声是喷水推进系统的主要噪声源。分析了三种噪声产生的机理和原因。认为降低噪声应该在设计喷水推进系统过流部件结构的合理性、系统和部件的抗空蚀性能、控制回流、结构措施、吸噪材料等方面开展工作。
In this paper, a propulsion pump that isthe main drive system of a ducted propulsor was analyzedroundly; it was indicated that the load noise, inverseflow noise and cavitation noise were the main noisesources, and the causes generating noise on ducted prop-ulor were discussed. Besides that, the proposal for futureresearch directions on noise reduction were presented inthis paper. In order to reduce the noise brought by duct-ed propulsor, it was indicated that some investigationsshould be carried out such as the investigation on struc-ture rationality, investigation on resisting cavitaion per-formance, and investigation on noise absorption materialetc.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2003年第18期1558-1561,共4页
China Mechanical Engineering
关键词
喷水推进系统
推进泵
噪声
降噪
ducted propulsor
propulsion pump
noise reduction
