Arrayed transverse negative stiffness vibration damper

Abstract

The invention discloses an arrayed transverse negative stiffness vibration damper. The arrayed transverse negative stiffness vibration damper comprises a left movable plate, vibration damper substructures and a right fixed plate. The left movable plate is mounted on a machine body. Each vibration damper substructure is arranged between the left movable plate and the right fixed plate and comprisesa negative stiffness unit, a positive stiffness unit and a hydraulic damping rod. The vibration damper substructures are vertically arranged and spaced in a linear array mode. The right fixed plate is fixedly connected to the ground. The arrayed transverse negative stiffness vibration damper can control structural vibration within the broadband range by adjusting the stiffness and damping of thevibration damper structures.

Description

technical field [0001] The invention belongs to the field of structure vibration control and relates to an array type transverse negative stiffness vibration damping device. Background technique [0002] With the advancement of science and technology and the continuous improvement of people's living standards, people's requirements for the quality of products produced by the manufacturing industry are also constantly improving. In the process of mechanical manufacturing, there are often multiple factors that cause the quality of the product to fail to meet the high standard requirements. Low-frequency lateral vibration is one of the most serious hazards. The existence of low-frequency mechanical vibration will not only affect the accuracy of the produced product, but also cause mechanical damage. The low-frequency noise is radiated outward, which affects the work mood of workers and even induces cardiovascular and cerebrovascular diseases. General vibration reduction and vi...

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Problems solved by technology

In the process of mechanical manufacturing, there are often multiple factors that cause the quality of the product to fail to meet the high standard requirements. Low-frequency lateral vibration is one of the most serious hazards. The existence of low-frequency mechanical vibration will not only affect the accuracy of the produced product, but also cause mechanical damage. Radiate low-frequency noise outward, affect the work mood of workers, and even induce cardiovascular and cerebrovascular diseases

General vibration reduction and vibration isolation devices, such as vibration isolation bearings, have made some progress in the research of vertical vibration control, but the influence of lateral vibration is ignored, making it difficult for products to meet the precision requirements with high quality

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