噪声与振动控制2017，Vol.37Issue(4)：5-10,6.DOI:10.3969/j.issn.1006-1355.2017.04.002
一种高阻尼螺旋桨在宽带激励力下的振动特性研究
Vibration Characteristics of a High-damping Propeller Subjected to Broadband Excitation Forces
许慧春 1郭云松 2谌勇 1陈锋 3华宏星1
作者信息
- 1. 上海交通大学 机械系统与振动国家重点实验室,上海 200240
- 2. 中国船舶重工集团公司第七O四研究所,上海 200031
- 3. 高新船舶与深海开发装备协同创新中心,上海 200240
- 折叠
摘要
Abstract
A new type of high-damping propeller structures is proposed. By simplifying the blade of the propeller into a cantilever beam, the random vibration characteristics of the blades of the new-type propeller and the traditional propeller are analyzed and compared. First of all, using the correlation method based on the statistical characteristics of isotropic turbulence, the pressure spectrum acted on the propeller surface is computed. Then, by using the random vibration theory based on modal superposition method, the influence of system parameters on the power spectral density of blades'velocity response and the unsteady force transmitted to the hull are discussed. It is shown that the new type of propeller structures can reduce the peak responses at the natural frequencies of the blades.关键词
振动与波/螺旋桨/弯曲梁/湍流/模态叠加法/随机振动Key words
vibration and wave/propeller/cantilever beam/turbulence/modal superposition method/random vibration分类
交通工程引用本文复制引用
许慧春,郭云松,谌勇,陈锋,华宏星..一种高阻尼螺旋桨在宽带激励力下的振动特性研究[J].噪声与振动控制,2017,37(4):5-10,6.
