Dynamic vibration absorber capable of automatically adjusting frequency and installation, regulation and control method thereof

Abstract

The invention discloses a dynamic vibration absorber capable of automatically adjusting the frequency and an installation, regulation and control method thereof. The dynamic vibration absorber comprises an installation base which is used for the connection between the dynamic vibration absorber capable of automatically adjusting the frequency and a structure needing dynamic vibration absorption processing; an elastic structure which is mounted on the mounting base; a movable mass block which is movably mounted on the elastic structure, wherein according to the dynamic vibration absorber capable of automatically adjusting the frequency, the movable mass block moves on the elastic structure, and adjustment of the vibration suppression characteristic of the dynamic vibration absorber is achieved. According to the dynamic vibration absorber, the problems that the dynamic vibration absorption frequency of an existing dynamic vibration absorber is difficult to regulate and control, and the requirement for regulation and control personnel is harsh can be solved.

Description

technical field [0001] The invention belongs to the technical field of noise and vibration control, and in particular relates to an automatic frequency-adjustable dynamic vibration absorber and an installation and control method thereof. Background technique [0002] In engineering practice, mechanical equipment, precision instruments, building structures and even the general public will be affected by low-frequency vibration and noise. If the vibration or noise is too large, it will affect the normal operation of precision instruments. Or building structure fatigue, severe or even structural damage and accidents endanger people's production safety; at the same time, the WHO also pointed out in related research reports that low-frequency and low-level noise interferes with people's rest and sleep; and in real life, line Spectrum vibration noise occupies a very important position in low frequency vibration noise. In order to create a safe and good living environment for peop...

AI Technical Summary

Problems solved by technology

Existing dynamic vibration absorbers usually adjust the frequency of the vibration absorber by manually adjusting the stiffness of the vibration absorber or increasing or decreasing the mass of the vibration absorber. Personnel must have a good understanding of the mechanism of frequency regulation, and must have rich experience in on-site regulation. Considering that there are many accidental factors in personnel regulation, it is difficult to guarantee the accuracy of frequency regulation, and the regulation efficiency is relatively low.

Images