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Citation:
　Mengtong Wang,Chang Qi,Sheng Li,et al.Analytical Study on a Quasi-Zero-Stiffness Vibration Isolator Based on Magnetic Rings and Disc Springs[J].Journal of Marine Science and Application,2026,(5):1225-1237.[doi:10.1007/s11804-025-00757-7]
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Analytical Study on a Quasi-Zero-Stiffness Vibration Isolator Based on Magnetic Rings and Disc Springs

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Title:
Analytical Study on a Quasi-Zero-Stiffness Vibration Isolator Based on Magnetic Rings and Disc Springs
Author(s):
Mengtong Wang1;  Chang Qi2;  Sheng Li1;  Rui Li2;  Liqiang Han2;  Hao Chen2
Affilations:
Author(s):
Mengtong Wang1;  Chang Qi2;  Sheng Li1;  Rui Li2;  Liqiang Han2;  Hao Chen2
1 School of Naval Architecture, Dalian University of Technology, Dalian 116024, China;
2 School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China
Keywords:
Halbach; Quasi-zero-stiffness vibration isolator; Nonlinear dynamics; Low-frequency vibration control; Adjustable operating condition
分类号:
-
DOI:
10.1007/s11804-025-00757-7
Abstract:
A suitable quasi-zero-stiffness (QZS) vibration isolator system was developed for confined installation spaces. The system achieves close-to-zero stiffness through the parallel combination of magnetic rings and disc springs. First, the Halbach magnetization method was proposed for the positive stiffness mechanism owing to its advantages in the field of non-contact transmission. Furthermore, the negative stiffness mechanism was designed based on the nonlinear stiffness characteristics of disc springs. Next, the proposed QZS vibrator isolator was structurally optimized by focusing on the interaction between the positive and negative stiffness mechanisms. Thereafter, the effects of key structural and operating parameters on its dynamic characteristics (e.g., resonance frequency and force transmissibility (Te)) were analyzed to validate the accuracy of the theoretical model. Finally, comparative experiments were conducted using a magnetic bearing testing platform to evaluate Te through the QZS vibration isolator and its equivalent linear isolator under identical excitation. The results demonstrated that the QZS vibration isolator exhibited superior low-frequency vibration isolation performance. This study offered a basis for prototype manufacturing, future experimental validations, and broadening engineering implementation.

References:

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Memo

Memo:
Received date:2025-4-1;Accepted date:2025-7-17。<br>Corresponding author:Sheng Li,E-mail:shengli@dlut.edu.cn
Last Update: 2026-11-04