纵摇运动下船用转子-轴承-浮筏气囊耦合系统非线性动力学特性OA北大核心CSTPCD
Nonlinear Dynamic Characteristics of the Ship Rotor-bearing-floating Raft Airbag Coupling Systems under Pitching Motion
以纵摇运动作用下转子-轴承-浮筏气囊耦合系统的非线性动力学特性作为研究对象.首先,考虑转子不平衡力、轴承油膜力、浮筏气囊弹性回复力以及船体纵摇运动惯性力等因素,根据Lagrange方程建立转子轴承-浮筏气囊耦合系统的动力学模型.基于数值方法,结合瀑布图、轴心轨迹图及相图、时域和频谱图等对转子-轴承-气囊浮筏耦合系统非线性动力学特性进行分析.结果表明:随着转子转速的增加,纵摇运动下的转子轴承-浮筏气囊耦合系统运动状态从拟周期运动到混沌运动;与不考虑…查看全部>>
The nonlinear dynamic characteristics of the rotor-bearing-floating raft airbag system of a ship under pitching motion are studied.Firstly,considering unbalance force,bearing oil film force,floating raft airbag elastic recovery force and inertial force of ship pitching motion,the dynamic model of this system is established according to Lagrange equation.Then,based on the numerical method,the nonlinear dynamic characteristics of this system are analyzed by me…查看全部>>
段有利;李明
西安科技大学 力学系,西安 710054西安科技大学 力学系,西安 710054
力学
振动与波非线性动力学纵摇船用转子系统浮筏气囊
vibration and wavenon-linear dynamicspitchingmarine rotor systemfloating raft airbag
《噪声与振动控制》 2024 (2)
复杂牵连运动下船用转子—轴承系统非线性动力学及气囊浮筏耦合振动控制
37-43,7
国家自然科学基金资助项目(11972282)
评论