| 润滑耦合下冲击引起的轴系弯扭振动特性分析 |
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| 引用本文： | 朱汉华,张绪猛,刘正林,严新平,温诗铸,范世东.润滑耦合下冲击引起的轴系弯扭振动特性分析[J].船舶力学,2010(Z1). |
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| 作者姓名： | 朱汉华 张绪猛 刘正林 严新平 温诗铸 范世东 |
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| 作者单位： | 武汉理工大学能源与动力工程学院;清华大学摩擦学国家重点实验室; |
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| 基金项目： | 国家自然科学基金(50675162,50479016);;校博士科研起动金资助 |
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| 摘 要： | 船舶推进轴系的弯扭振动与支承轴承的润滑油膜相互耦合,互相影响。文中给出了轴承的润滑方程及润滑与弯扭振动耦合的运动方程,通过数值计算,研究了润滑油粘度对轴系振动的影响。从计算的结果可知:在冲击载荷的作用下,弯扭振动响应随粘度增大而减弱,振幅衰减加快,冲击作用对轴系振动干扰时间缩短。同时,润滑粘度愈低,弯扭耦合性愈强,振幅改变愈大,互激励愈明显,而在高粘度条件下,轴系的弯扭耦合性减弱,扭转振动受冲击载荷的影响不明显,而弯曲振动受冲击载荷的影响明显存在。
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| 关 键 词： | 船舶推进轴系 轴承润滑 耦合作用 数值分析 弯扭振动 |
Analysis on the property of ship shafting bending-torsion vibration coupling with bearing lubrication under impulse load |
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| ZHU Han-hua,ZHANG Xu-meng ,LIU Zheng-lin,YAN Xin-ping ,WEN Shi-zhu,FAN Shi-dong.Analysis on the property of ship shafting bending-torsion vibration coupling with bearing lubrication under impulse load[J].Journal of Ship Mechanics,2010(Z1). |
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| Authors: | ZHU Han-hua ZHANG Xu-meng LIU Zheng-lin YAN Xin-ping WEN Shi-zhu FAN Shi-dong |
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| Institution: | 1 School of Energy & Power Engineering;Wuhan University of Technology;Wuhan 430063;China;2 State Key Laboratory of Tribology;Tsinghua Univerversity;Beijing 100084;China |
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| Abstract: | It is coupled and influenced each other between the bending-torsion vibration of ship propulsive shafting and journal bearing lubrication oil.The bearing lubrication equation and the coupling dynamic e-quation between bearing lubrication and bending-torsion vibration of ship shafting are given in this paper.The influence relationship of bearing lubricant oil viscosity to the shafting vibration is investigated by the numerical method.The calculation results show that applying impulse load on the shafting and... |
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| Keywords: | Ship propulsive shafting bearing lubrication coupling function numerical analysis bending-torsion vibration |
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