A phononic crystal vibration isolation device

Abstract

The invention provides a phononic crystal vibration isolation device, and belongs to the field of vibration isolation and noise reduction. The device specifically comprises a rigid frame, at least onepair of phononic crystal vibration isolation components; the pair of phononic crystal vibration isolation components comprise an input end phononic crystal components which is used for connecting a vibration source; a output end phononic crystal components which is used for connecting protectors required vibration isolation; and the input end phononic crystal component and the output end phononiccrystal component are respectively arranged on a first side and a second side opposite to the rigid frame. The device aims to provide a phononic crystal vibration isolation device, so as to solve theproblems of narrow vibration isolation frequency range and poor vibration isolation effect of a current phononic crystal vibration isolator.

Description

technical field [0001] The invention belongs to the field of vibration isolation and noise reduction, and in particular relates to a phononic crystal vibration isolation device. Background technique [0002] The problem of mechanical vibration is a common problem in life and industry. Harmful vibration seriously endangers the safety and reliability of engineering structures and the normal operation of precision instruments. In order to prevent vibration from causing harm to the object to be protected, methods such as reducing vibration at the source of vibration, cutting off the vibration propagation path, and reducing vibration at the protected object are usually adopted. Vibration isolators are commonly used devices to reduce vibration energy in engineering, and their vibration reduction effects are closely related to structural design. For common vibrations in engineering, rubber and metal springs are often used as vibration isolators. Rubber is good at isolating high-f...

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Problems solved by technology

[0004] Aiming at the defects in the prior art, the purpose of the present invention is to provide a phononic crystal vibration isolator to solve the problem that the vibration isolation frequency range of the current phononic crystal vibration isolator is too narrow and the vibration isolation effect is not good

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