The invention discloses a quasi-zero-rigidity aircraft seat vibration isolation device which comprises a seat bottom plate and a cabin floor. The connecting mechanism is used for connecting the seat bottom plate and the cabin floor; the positive stiffness mechanism is arranged between the seat bottom plate and the cabin floor, the positive stiffness mechanism is used for providing elastic buffering for relative movement between the seat bottom plate and the cabin floor, and the positive stiffness mechanism comprises a first elastic piece which generates elastic buffering in the vertical direction; and the negative stiffness mechanism is arranged between the seat bottom plate and the cabin floor. The system has the characteristics of high static rigidity and low dynamic rigidity, when the aircraft seat is in a low-frequency vibration environment, the high static rigidity can provide enough supporting force for the aircraft seat so as to ensure the stability of the aircraft seat in the aircraft operation process, and the low dynamic rigidity enables the system to have smaller equivalent inherent frequency. And isolation of low-frequency vibration can be realized.
本发明公开了一种准零刚度飞机座椅隔振装置,包括:座椅底板和机舱地板;用于连接座椅底板和机舱地板的连接机构;设置在座椅底板和机舱地板之间的正刚度机构,所述正刚度机构用于为座椅底板和机舱地板之间的相对移动提供弹性缓冲,所述正刚度机构包括在垂直方向产生弹性缓冲的第一弹性件;设置在座椅底板和机舱地板之间的负刚度机构。本发明具有高静态刚度低动态刚度特性,当飞机座椅处于低频振动环境中时,高的静态刚度能够为飞机座椅提供足够的支撑力,以保证飞机运行过程中飞机座椅的稳定性,低的动态刚度使系统具有更小的等效固有频率,能够实现对低频振动的隔离。
Quasi-zero stiffness aircraft seat vibration isolation device
一种准零刚度飞机座椅隔振装置
2023-09-01
Patent
Electronic Resource
Chinese
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
Vehicle seat assembly incorporating quasi-zero/negative stiffness vibration isolators
European Patent Office | 2023
|Quasi-zero stiffness vibration isolation and pointing integrated platform
European Patent Office | 2023
|VEHICLE SEAT ASSEMBLY INCORPORATING QUASI-ZERO/NEGATIVE STIFFNESS VIBRATION ISOLATORS
European Patent Office | 2022
|Experimental Validation of Vibration Isolation in Quasi-Zero Stiffness Mount Concept
SAE Technical Papers | 2023
|