研究由偏角不对中因素引起的舰船推进轴系匀速运动过程横向振动响应问题。考虑以轴系偏角不对中和转轴偏心因素为基础,建立偏角不对中推进轴系的横向振动动力学模型,并利用数值算法求解方程,分析轴系振动响应形式以及不对中偏角量、转轴质量比和主动轴无量纲转速对匀速运动过程偏角不对中轴系横向振动特性的影响。结果表明:偏角不对中的存在使轴系产生复杂的动力学行为。研究工作为从角度降低轴系振动角度改善舰船的声学品质提供理论依据。
Research the problem of propulsion shafting lareral vibration response problems caused by angle misalignment in uniform motion process. Considering as the basis of shaft angle misalignment and shaft eccentricity factors, establish the angle misalignment propulsion shafting lareral vibration dynamic model, use the numerical algorithm for solving the equation, and analysis the form of shafting vibration response and the effect of misalignment angle quantitymass ratio of active shaft and dimensionless shaft speed on the lareral vibration characteristics of the shafting with the angle misalignment in uniform process. The results indicate that shafting with angle misalignment can the dynamic behavior. The research work makes sense in providing a theoretical basis for warships to improve the acoustic performance from reducing shafting vibration.
2016,38(3): 85-91 收稿日期：2015-06-25
DOI：10.3404/j.issn.1672-7619.2016.03.018
分类号：TH133.3
基金项目：国家自然科学基金资助项目(11372350)
作者简介：李永哲(1990-),男,硕士研究生,主要从事振动与噪声控制研究。
参考文献：
[1] 李明. 平行不对中转子系统的非线性动力学行为[J]. 机械强度, 2005, 27(5):580-585.
[2] 黄典贵, 蒋滋康. 交角不对中轴系的扭振特性分析[J]. 汽轮机技术, 1995, 37(3):150-152.
[3] 周奇郑, 王德石, 张恺. 加速过程偏角不对中轴系横向振动特性研究[J]. 动力学与控制学报, 2014, 12(4):315-320. ZHOU Qi-zheng, WANG De-shi,ZHANG Kai.Lateral vibrationcharacteristics analysis ofshafting with angle misalignment in accelerating process[J]. Journal of Dynamics and Control, 2014, 12(4):315-320.
[4] XU M, MARANGONI R D. Vibration analysis of a rotor-flexible coupling-rotor system subject to misalignment and unbalance, Part I:Theoretical model and analysis[J]. Journal of Sound and Vibration, 1994, 176(5):663-679.
[5] XU M, MARANGONI R D. Vibration analysis of a rotor-flexible coupling-rotor system subject to misalignment and unbalance,Part II:experimental and validation[J]. Journal of Sound and Vibration, 1994, 176(5):681-691.
[6] AL-HUSSAIN K M,REDMOND I. Dynamic response of two rotors connected by rigid mechanical coupling with parallel misalignment[J]. Journal of Sound and Vibration, 2002, 249(3):483-498.
[7] AL-HUSSAIN K M. Dynamic stability of two rigid rotors connected by a flexible coupling with angular misalignment[J]. Journal of Sound and Vibration, 2003, 266(2):217-234.
[8] 张宇文. 鱼雷总体设计原理与方法[M]. 西安:西北工业大学出版社, 1998
