Torsion vibration absorber with piecewise linear rods

Abstract

The invention relates to the technical field of vibration noise control, in particular to a torsion vibration absorber with piecewise linear rods. According to the technical scheme, the torsion vibration absorber comprises a supporting disc, a bearing, a shaft sleeve, a fastening screw, a connection rod, the piecewise linear rods and a vibration absorbing mass block. The supporting disc is of a disc structure, the supporting disc is fixedly connected to a rotor, the vibration absorbing mass block is of a disc structure, the vibration absorbing mass block is provided with a center hole and fourcircular arc grooves distributed evenly in the circumference with different slot widths and different circular arc angles, the supporting disc is fixedly connected with the vibration absorbing mass block through the connection rod, the piecewise linear rods are four rigid rods with different diameters, one end of each piecewise linear rod is fixedly connected with the supporting disc, and the other ends of the piecewise linear rods are placed into the four circular arc grooves correspondingly and keep gaps away from the angular displacement direction of the circular arc grooves. The torsion vibration absorber with the piecewise linear rods is simple in structure, wide in vibration suppression frequency band and remarkable in effect.

Description

technical field [0001] The invention relates to the technical field of vibration and noise control, in particular to a torsional vibration absorber with segmented linear rods. Background technique [0002] When the torsional excitation frequency input by the rotor system is close to or the same as the natural frequency of the rotor system, it will cause resonance of the rotor system, which will directly affect the strength and service life of the rotor system and components, and even pose a threat to the safe operation of the rotor system . High torque and high power is the development trend of the rotor system. With the continuous increase of the torque and power of the rotor system, this will increase the torsional vibration and noise of the rotor system. Therefore, the problem of torsional vibration control becomes more prominent, and the research on torsional vibration control has very important theoretical significance and engineering application value. [0003] At pr...

AI Technical Summary

Problems solved by technology

The structure of the passive vibration absorber is simple, but the structural parameters cannot be changed, so the vibration suppression frequency band of the vibration absorber is narrow; the vibration suppression frequency range of the active vibration absorber is large, but at the same time, due to the complex structure, the reliability will decrease under complex working conditions

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