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

Abstract

The invention relates to a test method and a test stand for multiple performances of a dual-mass flywheel torsional shock absorber of an automobile engine. The method is: using a torsional motion device, first transforming the rotational motion of the variable-frequency motor into the torsional motion required for the dynamic test of the dual-mass flywheel torsional shock absorber, and then adjusting the rotational speed of the variable-frequency motor through a frequency converter to achieve the required frequency for the torsional motion , and then according to the swing angle to be realized in advance, adjust the eccentricity of the slider shaft installed on the crank wheel and the length of the adjustable connecting rod in the torsion motion device to realize the required swing amplitude of the dynamic test torsion. The test bench includes a variable frequency motor (1), a sensor detection device, a test piece and its connecting parts, and a device for converting the rotational motion of the variable frequency motor into the torsional motion required for the dynamic test of the dual-mass flywheel torsional shock absorber. The invention can carry out the static performance test, the dynamic performance test and the durability test of the double-mass flywheel torsional shock absorber on the same test stand.

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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