Energy trap device with magnetorheological damper capable of adjusting damping

Abstract

The invention relates to a nonlinear energy trap device with a magnetorheological damper. The nonlinear energy trap device with the magnetorheological damper comprises a base bearing platform plate (1) connected with a main structure, two parallel linear guide rails (2) are arranged on the base bearing platform plate (1), a supporting plate (6) is arranged on the linear guide rails (2), linear bearings (3) are arranged between the supporting plate (6) and the linear guide rails (2), a vibrator (7) is installed on the supporting plate (6), tension and compression springs (9) with guide pipes (8) are symmetrically arranged on the two sides of the vibrator (7) in the horizontal direction perpendicular to the linear guide rails (2), the magnetorheological damper (10) is connected with the vibrator (7) through a hinge pin (11) in the direction parallel to the linear guide rails (2), and the other ends of the tension and compression springs (9) and the other end of the magnetorheological damper (10) are connected with fixed baffles (4). Compared with a traditional damping device, the structure has the advantages of being light in weight, wide in damping frequency, better in robustness, good in energy consumption effect and the like.

Description

technical field [0001] The invention relates to a vibration reduction and energy consumption device, in particular to an energy well device of a magneto-rheological damper with adjustable damping. Background technique [0002] In the field of civil engineering, how to effectively avoid the damage of structures caused by excessive vibration has become an important issue. In order to prevent structures from effectively avoiding damage caused by vibration, a series of passive control-based vibration-absorbing and energy-dissipating devices, such as tuned mass dampers (TMD) and liquid-adjusted dampers (TLD), have been widely used in engineering structures. This type of device has a good effect on the vibration absorption and energy dissipation of the low-order vibration of the structure, but it will not work well for the vibration of the high-order vibration, and has certain limitations. As a vibration-absorbing, vibration-damping, and energy-dissipating device, the nonlinear e...

AI Technical Summary

Problems solved by technology

Nowadays, the vibration reduction experiments and theories of orbital nonlinear energy well devices, frictional nonlinear energy well devices and collision type energy well devices have been more comprehensively studied. However, these nonlinear energy well devices (NES) are all passively controlled. , cannot be adjusted in time according to the characteristics of external disturbances and changes in the vibration characteristics of the structure itself, and there are certain limitations

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