带螺旋桨激振力的轴系耦合纵向振动特性分析  

Analysis of coupling characteristics of shafting longitudinal vibration excited by propeller

作　　者：李渊博 霍睿[1,2] 解晓娇[1,3] 孙渊博 LI Yuan-bo;HUO Rui;XIE Xiao-jiao;SUN Yuan-bo(School of Mechanical Engineering,Shandong University,Ji'nan 250061,China;Key Laboratory,of High Efficiency and Clean Mechanical Manufacture,Shandong University,Ministry of Education,Ji'nan 250061,China;Interaction Design Institute,Shandong University,Ministry of Education,Ji'nan 250061,China;No.92143 Unit of PLA,Saniya 572000,China)

机构地区：[1]山东大学机械工程学院,山东济南250061 [2]山东大学高效洁静机械制造教育部重点实验室,山东济南250061 [3]山东大学交互设计研究所,山东济南250061 [4]中国人民解放军92143部队,海南三亚572000

出　　处：《舰船科学技术》2021年第5期34-37,共4页Ship Science and Technology

摘　　要：采用CFD方法计算目标螺旋桨的敞水性能,通过Fourier变换得到轴承激振力的频域特性。结合舰艇推进轴系的一般结构形式,建立桨—轴—艇耦合系统纵向振动动力学模型,将先前计算所得的螺旋桨激励特性与振动能量传递相结合,讨论了纵向振动形式下螺旋桨激励振动功率流的传递和振动能量传递耗散的特性,从能量角度分析纵向振动在系统耦合振动中的影响,进而基于模拟工况探讨振动能量在轴系耦合振动中的传递机理。CFD method is used to calculate the open water performance of the target propeller, and the frequency domain characteristics of the bearing excitation force are obtained by Fourier transform. Combined with the general structural form of the ship's propulsion shafting, a longitudinal vibration dynamics model of the propeller-shaft-boat coupling system was established, combining the previously calculated propeller excitation characteristics and vibration energy transfer. The characteristics of transmission and vibration energy transmission dissipation are analyzed from the perspective of energy to analyze the influence of longitudinal vibration in the coupled vibration of the system, and then the transmission mechanism of vibration energy in the coupled vibration of the shaft system is discussed based on the simulated working conditions.

关 键 词：CFD方法 螺旋桨激励 推进轴系 纵向振动 振动功率流 

分 类 号：U664.3[交通运输工程—船舶及航道工程]