Nonlinear energy trap device with multistable magnetic coupling and multistable magnetic coupling method

A non-linear energy well and magnetic coupling technology, applied in the direction of non-rotational vibration suppression, spring/shock absorber, vibration suppression adjustment, etc., can solve problems such as multi-stable state is difficult to achieve, achieve superior robust performance, increase broadband absorption The effect of energy abilities

Active Publication Date: 2021-08-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nonlinear energy well device (NES) can achieve monostable and bistable states by setting the tension and compression of springs, but it is relatively difficult to achieve tristable and multi-stable states

Method used

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  • Nonlinear energy trap device with multistable magnetic coupling and multistable magnetic coupling method
  • Nonlinear energy trap device with multistable magnetic coupling and multistable magnetic coupling method
  • Nonlinear energy trap device with multistable magnetic coupling and multistable magnetic coupling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 , 4 , 5, 6, and 7, a tristable magnetically coupled nonlinear energy well device, including a base platform plate 1, a bearing guide rail 2, a first linear guide rail 13, a second linear guide rail 8, and an elastic assembly 5 , two magnet assemblies 10 and a magnet vibrator assembly 6 .

[0049] Specifically, the second linear guide rail 8 is arranged in the middle of the base platform 1, and the slide table 7 with pulley bearings is arranged on the linear slide rail. The vibrator connecting plate 62 is arranged on the slide table 7, and the vibrator connecting plate 62 is connected to the vibrator by bolts. The magnet 61 is connected, and the rear connecting plate in the elastic assembly 5 is hinged to the vibrator connecting plate 62, and the front connecting plate is hinged to the support 4; the two ends of the spring 51 in the elastic assembly 5 are respectively fixedly connected to the front connecting plate and the rear connecting plate , the s...

Embodiment 2

[0057] Such as figure 2 , 4 , 5, 6, and 8, a bistable magnetically coupled nonlinear energy well device includes a base platform plate 1, a bearing guide rail 2, a first linear guide rail 13, a second linear guide rail 8, and an elastic assembly 5 , a magnet assembly 10 and a magnet vibrator assembly 6 . That is, on the basis of Embodiment 1, this embodiment reduces a magnet assembly 10 and a short guide rail 12 .

[0058] The difference from Embodiment 1 is that a short guide rail 12 is arranged on the first linear guide rail 13, and a magnet assembly 10 is arranged on the short guide rail slide table 11, and the magnet assembly 10 and the magnet vibrator assembly 6 repel each other. . Figure 8 Among them, A is the first stable position, and B is the second stable position. The vibrator magnet 61 moves back and forth along the second linear guide rail 8. When the vibrator magnet 61 is at the A position, the spring 51 is in a stretched state (providing tension), that is,...

Embodiment 3

[0061] Such as image 3 , 4 , 5, 6, and 9, a five-stable magnetic coupling nonlinear energy well device, including a base platform plate 1, a bearing guide rail 2, a first linear guide rail 13, a second linear guide rail 8, and an elastic assembly 5 , a magnet assembly 10 and a magnet vibrator assembly 6 . That is, on the basis of Embodiment 1, this embodiment further adds a pair of short guide rails 12 and a pair of magnet assemblies 10 .

[0062] Similarly, the four short guide rails 12 are all perpendicular to the moving direction of the magnet vibrator; magnets 101 (magnet blocks) are respectively arranged on each short guide rail slide table 11, and when the vibrator magnet 61 and the magnet 101 are connected, the vibrator magnet 61 and four The magnets 101 attract each other, and the four magnets 101 are arranged symmetrically along the center of the first linear track. Figure 9 Among them, A is the first stable position, B is the second stable position, C is the thi...

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Abstract

The invention provides a nonlinear energy trap device with multistable magnetic coupling and a multistable magnetic coupling method. The device comprises a support guide rail, wherein the support guide rail extends in the Y direction and is slidably connected with a support sliding table, a support is fixed on the support sliding table, and an elastic component is arranged on the support; a first linear guide rail and a second linear guide rail extend in the X direction, the first linear guide rail is slidably connected with at least one short guide rail, a short guide rail sliding table is slidably connected to the short guide rail, a magnet assembly is fixed to the short guide rail sliding table and comprises a magnet, a sliding table is slidably connected to the second linear guide rail and connected with the elastic assembly, a magnet vibrator assembly is fixed on the sliding table and comprises a vibrator magnet, and a friction layer making contact with the sliding table is arranged in the second linear guide rail. According to the device and method, the nonlinear restoring force of a spring is coupled with the force of the magnet so that the multistable conditions of monostable, bistable, tristable and more can be realized, and a vibration absorption frequency band is increased.

Description

technical field [0001] The invention belongs to vibration reduction and energy consumption devices, in particular to a multi-stable magnetic coupling nonlinear energy well device and a multi-stable magnetic coupling method. Background technique [0002] Due to its characteristic of target energy transfer, the nonlinear energy trap device is used as a vibration-absorbing and energy-consuming device in aviation. This device has the advantages of wide frequency band of vibration reduction, high efficiency of vibration-absorbing energy consumption, and small mass. , has gradually tried to apply in the field of civil engineering. [0003] The main structure of the existing nonlinear energy sink device (NES) is composed of a spring, a vibrator and a damper. The spring is composed of a pair of springs with equal stiffness and length, and the damper mostly adopts collision damping or frictional damping. The nonlinear energy well device (NES) can achieve monostable and bistable sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/067F16F15/04
CPCF16F15/067F16F15/03F16F15/046
Inventor 万水申纪伟符俊冬王潇周鹏周林云李书利年玉泽
Owner SOUTHEAST UNIV
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