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Torsional vibration test bench for front and rear drive vehicle power transmission system

A technology of power transmission system and test bench, which is applied in the field of automobile manufacturing and testing to achieve the effects of strong operability, convenient installation and operation, and strong adaptability

Inactive Publication Date: 2017-11-28
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the domestic torsional vibration tests of the power transmission system are also concentrated on the test of the torsional vibration characteristics of the transmission shaft alone, and there is a lack of a test method for the entire power transmission system.

Method used

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  • Torsional vibration test bench for front and rear drive vehicle power transmission system
  • Torsional vibration test bench for front and rear drive vehicle power transmission system
  • Torsional vibration test bench for front and rear drive vehicle power transmission system

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Experimental program
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Effect test

Embodiment Construction

[0036] figure 1It shows the designed test bench structure layout, which is mainly composed of vehicle inertia simulation system, drive device, vibration excitation device and loading device. According to the functions and requirements of the bench, the test bench uses the motor instead of the engine, simulates the working conditions of the automobile transmission system on the indoor bench, and uses NVH portable equipment to realize the test of the torsional vibration of the transmission system. Its working principle is: the driving device simulates the work of the engine, generates power to drive the flywheel of the engine to rotate, and makes the entire transmission system run in accordance with normal driving conditions; the vehicle inertia simulation system simulates the motion inertia of the vehicle during running on the road; the loading device The auxiliary inertial simulation system ensures the effective application of inertial loads; in addition, the excitation torque...

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Abstract

The invention discloses a torsional vibration test bench for an automobile power transmission system, which is mainly composed of a vehicle inertia simulation system, a driving device, an excitation device and a loading device, and is characterized in that the driving device simulates the work of the engine to generate power to drive the flywheel of the engine Rotate, so that the entire transmission system operates in accordance with normal driving conditions; the vehicle inertia simulation system simulates the motion inertia of the vehicle during the running process on the road; the loading device assists the inertia simulation system to ensure that the inertial load is effectively applied; The transmission system applies an exciting torque to generate torsional vibration; then the torsional vibration condition of the transmission system is measured with a torsional vibration tester. By adjusting the relative position of each functional area of ​​the stand, it can be applied to the transmission system of each wheelbase and wheelbase. By changing the adapters, it can match with different hubs, place different types of transmissions, and connect different types of rear axles, which can meet the test installation of more types of front and rear drive transmission systems rather than a single type of transmission system.

Description

technical field [0001] The invention relates to a torsional vibration test bench for an automobile power transmission system, especially applied to a front-rear drive automobile, and belongs to the technical field of automobile manufacturing and detection. Background technique [0002] The power transmission system is the main vibration and noise source of the vehicle, and the matching of its vibration characteristics with other systems of the vehicle will directly determine the NVH performance level of the vehicle. Therefore, it is urgent to study the vibration and noise of the power transmission system of the vehicle, so as to propose effective Chassis vibration and noise solution. [0003] At present, domestic research on the torsional vibration of the automotive power transmission system is mainly based on modeling calculations. There are few experimental methods to study the torsional vibration of the transmission system. The test and analysis of the torsional vibratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/02G01M7/02
Inventor 何智成陈守锷李权冰
Owner HUNAN UNIV
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