摘要
船舶桨-轴系统在运转过程中经常出现异常振动和噪声,影响着系统运转的稳定性,威胁着水下航行器的隐蔽性和安全性。为有效解决该问题,以大型船舶桨-轴系统为研究对象,基于Timoshenko梁-轴单元建立系统在螺旋桨质量偏心作用下的弯扭耦合模型。对桨-轴系统的瞬态响应进行分析,得到外激励力和旋转频率对桨-轴系统弯曲振动和扭转振动响应特性的影响规律,为提高船舶桨-轴系统的稳定性和故障诊断提供理论依据。
The ship’s paddle-shaft system often has abnormal vibration and noise during operation, which affects the stability of the system operation and threatens the concealment and safety of the underwater vehicle. In order to solve the problem effectively, taking the large ship’s paddle-shaft system as the study object, the bending-torsion coupling model of the system under the eccentricity of the propeller is established based on the Timoshenko beam-axis unit. The transient response analysis of the paddle-axis system is carried out. The external excitation force is obtained, as well as the influence rule of the rotating frequency on the bending and torsional vibration response characteristics of the paddle-shaft system. It provides theoretical basis for raising the stability and fault diagnosis of the ship’s paddle-shaft system.
作者
邱成
李传桥
花纯利
曹国华
QIU Cheng;LI Chuanqiao;HUA Chunli;CAO Guohua(School of Mechanical Engineering,China University of Mining and Technology,Jiangsu Xuzhou 221116,China;Defense Key Disciplines Laboratory of Ship Equipment Noise and Vibration Control Technology,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《船舶工程》
CSCD
北大核心
2020年第2期53-59,共7页
Ship Engineering
基金
国家自然科学基金资助项目(51505476)
上海交通大学舰船设备噪声与振动控制技术国防重点学科实验室开放基金资助项目(vsn201601)。
关键词
桨-轴系统
动力学模型
弯扭耦合振动
瞬态响应分析
propeller-shaft system
dynamics model
bending-torsional coupling vibration
transient response analysis
