准零刚度隔离器的动态性能与取决于位移的电磁分流阻尼器
Pengxiao Hao1,2, Jiangchuan Niu3,4, Wanjie Zhang1,2
1State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China.
Scientific reports
|April 17, 2025
概括
一个新的取决于位移的电磁分流阻尼 (D-EMSD) 系统增强了近零刚度 (QZS) 隔离器的振动减振. 这种改进的减噪系统可以减少共振峰值,而不会影响高频隔离.
科学领域:
- 机械工程 机械工程
- 控制振动,控制振动.
- 材料科学 材料科学 材料科学
背景情况:
- 电磁分流缓冲 (EMSD) 提供可调节的缓冲力.
- 在隔离系统的共振区域中增强振动减振至关重要.
- 几乎零刚度 (QZS) 隔离器是有效的,但可以在共振区域进行改进.
研究的目的:
- 开发和研究一个取决于位移的电磁变速阻尼 (D-EMSD) 系统.
- 提高准零刚度 (QZS) 隔离器的减振性能,特别是在共振区域.
- 分析与D-EMSD集成的QZS系统的动态性能和稳定性.
主要方法:
- 整合一个滑动静电机来创建一个取决于位移的电磁分流阻尼 (D-EMSD) 系统.
- 使用平衡方法获得动态性能的近似分析解决方案.
- 采用Lyapunov第一方法和Routh-Hurwitz稳定性标准来推断稳定性条件.
主要成果:
- D-EMSD系统有效地减少了在主共振区的峰值振幅和力传输速率.
- 在主共振区内,QZS系统的振动隔离能力得到了改进.
- 保持高频隔离能力没有妥协.
结论:
- 开发的D-EMSD系统显著提高了在共振区域的QZS系统的振动隔离性能.
- D-EMSD提供了一个可调节的解决方案,用于振动控制,平衡共振减噪和高频隔离.
- 这种方法提供了一种强大的方法来提高振动隔离系统的有效性.
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