The Effect of Time-Lag on the Dynamic Characteristics of Adjustable High-Static-Low-Dynamic-Stiffness Vibration Isolation System

被引：0
作者：
Chen, Jun [1 ]
Su, Pan [1 ]
Feng, Xuejiao [2 ]
Li, Yongzheng [3 ]
Zhang, Yongsheng [1 ]
机构：
[1] Naval Univ Engn, Coll Power Engn, Dept Marine Engn, Wuhan, Peoples R China
[2] Hubei Commun Tech Coll, Dept Automot & Aviat, Wuhan, Peoples R China
[3] Beijing Municipal Transportat Commiss, Beijing Boats Inspect Ctr, Dept Ship Inspect, Govt Serv Ctr, Beijing, Peoples R China
来源：
SHOCK AND VIBRATION | 2025年 / 2025卷 / 01期
基金：
中国国家自然科学基金;
关键词：
bifurcation behavior; high-static-low-dynamic-stiffness; time-lag; vibration isolation system; DUFFING OSCILLATOR; VAN;
D O I：
10.1155/vib/5560393
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Considering the force-displacement-current curve and the intrinsic nonlinear characteristics of the electromagnetic force, the time-lag characteristics of the adjustable high-static-low-dynamic-stiffness vibration isolation system are analyzed. The dynamic equations of the high-static-low-dynamic-stiffness system with time-lag parameters are established. Utilizing the averaging method, an analysis of the system's bifurcation behavior is conducted, yielding the critical conditions under which the time-lag system undergoes Hopf bifurcation. The amplitude-frequency relationship of the main resonance response is derived through the application of the multiscale method. It is demonstrated that when the time-lag time is zero, the maximum amplitude of the response of the system decreases as the coefficients of the time-lag term increase. When the time-lag is present, the relationship between the system's resonance peak and the time-lag is not monotonic. Furthermore, employing the multiscale method, the amplitude--frequency relationship of the 1/3 subharmonic resonance response is obtained, and the conditions for the existence of the 1/3 subharmonic resonance response are analyzed.
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页数：19
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