The invention discloses a seat suspension based on negative stiffness in the technical field of seat suspensions, a seat suspension system model is composed of a symmetrically placed negative stiffness spring damper and a spring damper with a positive stiffness structure, and each negative stiffness mechanism is formed by connecting two horizontally placed negative stiffness springs and two mass-free rods in series. The whole negative stiffness mechanism is then connected with the vertical positive stiffness spring damper in parallel, and the negative stiffness is adopted to adjust the overall stiffness of the system, so that the system has good nonlinear performance and good bearing performance; the total rigidity of the system is low, and low vibration reduction frequency and wide vibration reduction frequency band can be obtained; the bearing capacity of the system is determined by the positive stiffness spring, and the dynamic stiffness of the system is reduced by the negative stiffness. Through a specific control strategy, the system can make a corresponding response under external excitation.
本发明公开了座椅悬架技术领域的一种基于负刚度的座椅悬架,座椅悬架系统模型由一个对称放置的负刚度弹簧减振器和一个具有正刚度结构的弹簧减振器组成,每个负刚度机构由两个水平放置的负刚度弹簧与两根无质量杆串联,整个负刚度机构再与垂直正刚度弹簧减振器并联,采用负刚度调整系统整体刚度,使其具有良好的非线性性能和良好的承载性能;系统总刚度较低,能够获得较低的减振频率和较宽的减振频带;系统的承载力由正刚度弹簧确定,而系统的动刚度则由负刚度来减小。通过特定的控制策略,可以使系统在外部激励下作出相应的反应。
Seat suspension based on negative stiffness
一种基于负刚度的座椅悬架
2022-11-08
Patent
Electronic Resource
Chinese
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |
European Patent Office | 2023
|SAE Technical Papers | 2022
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