Method for measuring and determining dynamic stiffness of leaf spring of vehicle
A technology of leaf spring and measurement method, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve the problems of long cycle, time-consuming and laborious, cumbersome test process, etc., and achieve the effect of high-efficiency measurement
Active Publication Date: 2018-04-20
SINO TRUK JINAN POWER
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Problems solved by technology
Therefore, if the design stiffness measured by the bench loading and unloading curves is used to predict the dynamic characteristics of the suspension system, a large deviation may be caused by the influence of friction; or, the test process is cumbersome if the dynamic stiffness is measured by simulating the sprung resonance condition of the bench , the cycle is long, and the leaf spring needs to be disassembled during the test, which is time-consuming and laborious
Method used
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Embodiment 1
[0027] Take the leaf spring suspension system used in the front suspension of trucks as an example.
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Abstract
The invention relates to a method for measuring and determining dynamic stiffness of a leaf spring of a vehicle, belonging to the technical field of automobile suspensions. Sprung resonance frequencyis measured and determined via a running condition of the vehicle; based on parameters such as the sprung resonance frequency, unsprung mass, sprung mass, tire stiffness and the like, dynamic rigidityof the leaf spring can be solved in a reverse manner; the dynamic stiffness of the leaf spring during sprung resonance can be accurately and efficiently measured and determined.
Description
technical field [0001] The invention relates to a method for measuring the dynamic stiffness of a vehicle leaf spring, which belongs to the technical field of automobile suspension. Background technique [0002] Leaf spring is a kind of elastic element in automobile suspension. It is widely used in commercial vehicles because of its simple structure, convenient maintenance, low manufacturing cost and can also be used as a guide mechanism. In the leaf spring suspension system, the sprung resonance frequency and the shock absorber parameters based on this matching are important factors affecting the ride comfort of the vehicle. Among them, the sprung resonance frequency is affected by the dynamic stiffness of the leaf spring, but affected by friction, the steel plate The dynamic stiffness of the spring when the vehicle is running is often greater than the design stiffness. Especially for multi-leaf spring models or some less-leaf spring models with poor lubrication, the dynami...
Claims
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Login to View More IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 高阳郭年程王新龙潘宁
Owner SINO TRUK JINAN POWER