Method of testing multinomial performance of double mass flywheel torsion vibrating absorber and test stand

Abstract

The invention relates to a test method of multiple properties of automobile engine double mass flywheel torque insulator and a relative test bed. The method comprises utilizing a torsion movement device, first converting the rotation motion of a variable frequency motor into the torque motion demanded by the double mass flywheel torque insulator dynamic test, using a frequency converter to adjust the rotation speed of the variable frequency motor to realize the frequency needed by the torsion movement, then according to a demanded swing angle, adjusting the eccentricity of a crank wheel of the torsion movement device and the length of an adjustable link bar, to realize the amplitude of swing needed by the dynamic test torsion. The test bed comprises a variable frequency motor (1), a sensor detector, a test sample, a relative connector and a device for converting the rotation motion of the variable frequency motor into the torsion motion demanded by the double mass flywheel torque insulator dynamic test. The invention can process static property test, dynamic property test and durability test of double mass flywheel torque insulator on one test bed.

Description

technical field [0001] The invention relates to a dynamic performance test method for a double-mass flywheel torsional shock absorber of an automobile engine and a multifunctional test bench for realizing static performance test, dynamic performance test and durability test of the double-mass flywheel torsional shock absorber. Background technique [0002] Today's automobiles are developing in the direction of high torque, high speed, light weight, high efficiency and low damping. People have higher and higher requirements for automobile vibration, noise, ride comfort and other aspects. As we all know, a car is a vibrating system with mass, elasticity and damping. The piston engine relies on the piston to compress the gas, so that the fuel is blasted under the action of high temperature and high pressure to produce periodic impact force to push the crank to do work, which becomes the power source of the entire car. When the car is running, the crankshaft system and the whol...

AI Technical Summary

Problems solved by technology

For the dual-mass flywheel, this test bench still has its shortcomings: its maximum amplitude cannot meet the requirements of the dual-mass flywheel;

In China, the dual-mass flywheel itself is an emerging product, and its test equipment is also a hot spot of research, but there is still no test standard and a complete test equipment

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