# [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. 点击复制 推进轴系纵向高承载准零刚度隔振器的研究() 分享到： var jiathis_config = { data_track_clickback: true };

44

2023年01期

52-57

2022-12-06

## 文章信息/Info

Title:
Research on Longitudinal High Load-bearing Quasi-zero Stiffness Isolator for Propulsion Shafting

Author(s):

A

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.