An Adaptive Remote Active Vibration Reduction System

Abstract

The invention belongs to the technical field of ultra-precision vibration damping and discloses a self-adaption remote active vibration damping system. The self-adaption remote active vibration damping system at least comprises a main support device, a remote vibration damping device, a liquid transmission pipeline (4) and a controller (9). The liquid transmission pipeline (4) and the controller (9) are connected in parallel, and two ends of the liquid transmission pipeline (4) and the controller (9) are correspondingly connected with the main support device and the remote vibration damping device to form a closed loop structure. The remote vibration damping device is a closed container with an air charging and discharging interface. The remote vibration damping device is filled with compressed gas and viscous liquid (6). A throttle valve or a damper (5) is arranged on the liquid transmission pipeline (4). The self-adaption remote active vibration damping system can achieve a vibrationisolation in a narrow space, and can self-adaptively adjust the air intake of an air spring and the flow of a current limiting device according to a vibration isolation object in real time, so that asecondary active vibration isolation for the vibration isolation object is achieved. The self-adaption remote active vibration damping system not only has high vibration isolation accuracy, but alsohas the characteristics of a small installation space, a flexible size and strong environmental adaptability.

Description

technical field [0001] The invention belongs to the technical field of ultra-precision vibration reduction, and more specifically relates to an adaptive remote active vibration reduction system. Background technique [0002] Vibration is ubiquitous in facilities / equipment in almost all fields of human production and life, such as vehicles, ships, aircraft, spacecraft, manufacturing equipment, measuring instruments, various engineering operation equipment, and structural facilities such as buildings and bridges. In most cases, the existence of vibration will significantly increase the dynamic stress and deformation of the structure, accompanied by certain noise, leading to degradation of equipment or equipment performance such as service accuracy, or deterioration of the environment, and even cause structural damage in severe cases. The consequences could be disastrous. Therefore, the elimination of mechanical vibration has an important impact on the performance of mechanica...

AI Technical Summary

Problems solved by technology

[0005] The stiffness of the air spring is greatly affected by the key feature size of the structure, which limits the change of the key feature size in a small space, and it is difficult to adjust the vibration isolation characteristics and load-carrying capacity of the elastic element according to the demand

And for the conventional vibration damping system, the damping stiffness is generally a fixed value, and the natural frequency of the vibration damping system does not change with the amplitude. Once the external excitation frequency is close to or consistent with the natural frequency of the vibration damping system, it is very easy to resonate

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