[1]任志英,邱 涛,刘扭扭,等.推进轴系纵向高承载准零刚度隔振器的研究[J].郑州大学学报(工学版),2023,44(01):52-57.
 REN Z Y,QIU T,LIU N N,et al.Research on Longitudinal High Load-bearing Quasi-zero Stiffness Isolator for Propulsion Shafting[J].Journal of Zhengzhou University (Engineering Science),2023,44(01):52-57.
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推进轴系纵向高承载准零刚度隔振器的研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
44
期数:
2023年01期
页码:
52-57
栏目:
出版日期:
2022-12-06

文章信息/Info

Title:
Research on Longitudinal High Load-bearing Quasi-zero Stiffness Isolator for Propulsion Shafting
作者:
任志英 邱 涛 刘扭扭 白鸿柏 尧杰程 梁 翼
Author(s):
REN Z Y QIU T LIU N N et al.
文献标志码:
A
摘要:
针对船舶推进轴系纵向低频隔振难的问题,本论文将碟簧与螺旋弹簧并联设计了一种准零刚度隔振器。通过谐波平衡法,求解了轴系-准零刚度隔振器的动力学方程,采用数值计算验证了求解的有效性;综合分析系统响应的稳定性、轴系纵向静变形与并联机构零刚度区间范围,确定了隔振器的非线性刚度与阻尼比;最后通过碟簧静力学和准零刚度隔振器的静力学获得了碟簧与螺旋弹簧相应的结构与力学参数。结果表明,当隔振器非线性刚度取1×1012N/mm3、阻尼比取0.05时,系统稳态响应的解在200Hz内都是稳定的;并且在承受10 000 N载荷时,可以有效隔离10Hz~200Hz范围内的振动。
Abstract:
Aiming at the difficulty of longitudinal low-frequency vibration isolation of ship propulsion shafts, this paper designs a quasi-zero stiffness vibration isolator by paralleling a disc spring and a coil spring. Through the harmonic balance method, the dynamic equation of the shaft-quasi-zero stiffness vibration isolator is solved, and the validity of the solution is verified by numerical calculation the stability of the system response, the longitudinal static deformation of the shaft system and the zero stiffness of the parallel mechanism are comprehensively analyzed In the interval range, the nonlinear stiffness and damping ratio of the quasi-zero stiffness vibration isolator are determined. Finally, the corresponding structure and mechanical parameters of the disk spring and the coil spring are obtained through the statics of the disc spring and the quasi-zero stiffness vibration isolator. The results show that when the nonlinear stiffness and damping ratio of the isolator are respectively 1×1012N/mm3 and 0.05, the solution of the steady-state response of the system is stable within 200Hz and it can effectively isolate under a load of 10 000 N Vibration in the range of 10Hz~200Hz.
更新日期/Last Update: 2022-12-07