Self-adaptive variable-damping shear thickening fluid vibration absorber

A technology of thickening liquid and variable damping, which is applied in liquid shock absorbers, shock absorbers, shock absorbers, etc., and can solve the problems of complex structure and unstable performance of controllable damping shock absorbers

Inactive Publication Date: 2019-05-17
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The present invention is carried out to solve the defects and problems of the current controllable damping shock absorber with complex structure and unstable performance. The purpose is to provide...

Method used

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  • Self-adaptive variable-damping shear thickening fluid vibration absorber
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  • Self-adaptive variable-damping shear thickening fluid vibration absorber

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the following embodiments will specifically illustrate the self-adaptive variable damping shear thickening fluid shock absorber of the present invention in conjunction with the accompanying drawings.

[0024] figure 1 It is a structural schematic diagram of the self-adaptive variable damping shear thickening fluid shock absorber in the embodiment of the present invention.

[0025] figure 2 yes figure 1 Enlarged view of part A in Fig.

[0026] Such as figure 1 and figure 2 As shown, the adaptive variable damping shear thickening fluid shock absorber has a piston rod 1, an upper end cover 2, an upper inner cover 3, a cylinder body 4, a piston 5, a lower inner cover 6, an O-ring 7, and a Y-shaped seal Ring 8 and lower end cap 9.

[0027] The piston rod 1 is cylindrical, one end is located outside the cylinder body 4, and the other end passes throu...

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Abstract

The invention relates to a self-adaptive variable-damping shear thickening fluid vibration absorber. The vibration absorber comprises a piston component, a cylinder block and a sealing cover component; a closed cavity is formed by an upper inner cover, a lower inner cover, the cylinder block and a piston rod together and contains a shear thickening fluid; Y-shaped sealing rings are arranged between the piston rod and the upper inner cover and between the piston rod and the lower inner cover; and O-shaped sealing rings are arranged between the cylinder block and the upper inner cover and between the cylinder block and the lower inner cover. The piston rod is connected with a controlled structure and drives a piston to move inside the cylinder block along with vibration of the controlled structure, the shear thickening fluid outputs the variable damping force with the change of the loading frequency and amplitude, and thus the self-adaptive damping vibration attenuation effect is achieved; and meanwhile, a small overflowing hole is formed in the upper inner cover, so that the jamming phenomenon is prevented. Thus, the self-adaptive variable-damping shear thickening fluid vibration absorber has the advantages that the vibration absorber is passive, self-adaptive and simple in structure and is very applicable to the mechanical vibration control simplification requirement.

Description

technical field [0001] The invention belongs to the technical field of vibration control, in particular to an adaptive variable damping shear thickening fluid shock absorber. Background technique [0002] Vibration is a ubiquitous phenomenon in nature, and for power machinery, most vibrations are harmful, causing dynamic deformation and dynamic stress, causing structural fatigue damage, affecting machining accuracy, shortening service life, and causing environmental noise pollution Etc. Excessive vibration will have adverse effects on the stable operation of the machine, and in severe cases, it may cause the machine to stop or even cause destructive accidents. Therefore, how to reduce and control vibration has become an important link to ensure the safe and stable operation of the machine. [0003] Variable damping control technology is a common method for structural vibration control. For example, an intelligent fluid damper with controllable dynamic characteristics is mad...

Claims

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Application Information

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IPC IPC(8): F16F9/19F16F9/36F16F9/50
Inventor 赵倩汪中厚蒋会明袁静钱炜李郝林
Owner UNIV OF SHANGHAI FOR SCI & TECH
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