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Self-adaptive torsional vibration damper and diesel engine

A torsional vibration damper, self-adaptive technology, applied in the direction of spring/shock absorber, mechanical equipment, vibration suppression adjustment, etc., can solve the problems that affect the service life of the device, complex structure, heat generation of the unit, etc., to achieve installation and fixation Convenience, safe operation and cost reduction

Active Publication Date: 2018-01-19
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the literature search, most of the torsional vibration dampers currently used are damping type, that is, the torsional vibration amplitude is suppressed by converting the torsional vibration energy into heat energy. Make the unit heat up and affect the service life of the device

Method used

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  • Self-adaptive torsional vibration damper and diesel engine

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Embodiment Construction

[0025] As mentioned in the background technology section, most of the torsional vibration absorbers currently used are damping type, which have complex structures and high costs. During the energy conversion process, the unit is likely to generate heat, which affects the service life of the device.

[0026] Aiming at the deficiencies in the prior art, the present invention provides an adaptive torsional vibration damper. When the excitation force frequency of the rotating shaft coincides with the resonance frequency, the torsional vibration energy at the frequency is absorbed by setting the resonator in a targeted manner. With vibration reduction, the torsional vibration amplitude can be reduced from the source point of view to ensure the safe operation of the shaft system.

[0027] The technical solutions of the present invention will be clearly and completely described below through specific embodiments. Apparently, the described embodiments are only some of the embodiments ...

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Abstract

The invention discloses a self-adaptive torsional vibration damper. The self-adaptive torsional vibration damper comprises an inner shell, an outer shell and resonators arranged between the inner shell and the outer shell; each resonator comprises a mass block and a restraint spring, each mass block is supported between the inner shell and the outer shell through the corresponding restraint spring, and the resonators are arranged in pairs and are symmetrically distributed around the center of a rotating shaft; and when the excitation force frequency and the resonance frequency of the rotatingshaft are coincident, the resonators conduct targeted absorption on torsional vibration energy under the frequency to reduce vibration, the torsional vibration amplitude value can be reduced from thesource angle, and safe operation of a shafting system is ensured.

Description

technical field [0001] The invention belongs to the field of shaft vibration control, in particular to an adaptive torsional vibration damper and a diesel engine. Background technique [0002] Torsional vibration is the calculation of the degree of influence of the excitation frequency of the drive system on the natural frequency, reflecting the degree of danger of resonance (resonance) in the system. The torsional vibration is extremely destructive. The light one will change the torsional stress acting on the shaft, increase the fatigue damage of the shaft, and reduce the service life. Severe torsional vibration will cause damage or breakage of the unit system, affecting the safe and reliable operation of the unit. [0003] When studying the torsional vibration of the rotating shaft system, if the excitation force acting on the shaft is periodic, such as diesel engines, water pumps and other equipment, the excitation force acting on the shaft is periodic, which will inevita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/14
CPCF16F15/1414
Inventor 王刚曹婷婷陆佳伟吴春雨
Owner SUZHOU UNIV
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