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Test-bed for testing torsional vibration of power transmission system of front-engine rear-drive automobile

A technology of power transmission system and test bench, which is applied to the torsional vibration test bench of automobile power transmission system and the field of front and rear drive vehicles, and achieves the effects of strong operability, convenient installation and operation, and strong adaptability.

Inactive Publication Date: 2015-07-22
HUNAN UNIV
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  • 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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  • Test-bed for testing torsional vibration of power transmission system of front-engine rear-drive automobile
  • Test-bed for testing torsional vibration of power transmission system of front-engine rear-drive automobile
  • Test-bed for testing torsional vibration of power transmission system of front-engine rear-drive automobile

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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 test-bed for testing torsional vibration of a power transmission system of a front-engine rear-drive automobile. The test-bed mainly comprises a vehicle inertia simulation system, a driving device, an excitation device and a loading device; the test-bed is characterized in that the driving device simulates operation of an engine and generates power to drive an engine flywheel to rotate, and the whole power transmission system is enabled to run according to normal driving conditions; the vehicle inertia simulation system simulates movement inertia of a vehicle running on a road; the loading device assists the vehicle inertia simulation system to ensure effective application of inertia load; the excitation device applies exciting torque to the power transmission system so that the system generates torsional vibration; a torsional vibration tester is used to measure torsional vibration of the power transmission system. by adjusting relative positions of function areas of the test-bed, the test-bed can adapt to transmission systems of different shaft distances and wheel treads; by changing adapting members, the test-bed can fit different hubs to accommodate different types of transmissions and connect different types of rear axles, and the test-bed is applicable to testing installation of not a single type of transmission systems but more types of front-engine rear-drive transmission systems.

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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IPC IPC(8): G01M13/02G01M7/02
Inventor 何智成陈守锷李权冰
Owner HUNAN UNIV
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