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Friction plate and method for optimizing same to reduce uneven wear

A technology of uniform wear and friction plates, applied in friction linings, design optimization/simulation, instruments, etc., can solve the problems of many optimization parameters, low efficiency, high cost, improve service life, improve efficiency, and avoid wasting time Effect

Inactive Publication Date: 2018-09-14
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing technology, the wear and unevenness are reduced by optimizing the friction plate. Usually, the product is designed according to the actual needs, and then the product is tested by applying a load. If the requirements are not met, the design is redesigned and the test is repeated. This process takes a long time, and there are many parameters to be optimized, and a large number of tests are required, which is costly and inefficient

Method used

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  • Friction plate and method for optimizing same to reduce uneven wear
  • Friction plate and method for optimizing same to reduce uneven wear
  • Friction plate and method for optimizing same to reduce uneven wear

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Embodiment Construction

[0025] The present invention will be further described below with reference to the drawings and specific embodiments, but the protection scope of the present invention is not limited to this.

[0026] Such as figure 1 As shown, the two parts forming the contact pair in the embodiment of the present invention include a friction plate and an annular brake disc. The friction plate presses the brake disc at a given contact pressure of 1Mpa, and and the brake disc at a constant speed 15r / s rotation, the contact surface of the two parts is directly without lubrication, and the friction coefficient is 0.37. In this embodiment, the friction lining is in contact wear state within one revolution of the brake disc, while the brake disc is in an indirect wear state. Therefore, the amount of friction lining wear during the entire braking process is much greater than that of the brake disc. In this embodiment, only the wear of the friction plate is considered, and the brake disc is treated as ...

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Abstract

The invention provides a method for optimizing a friction plate to reduce uneven wear. The method includes steps of building brake discs and friction plate models; carrying out grid division on the brake discs and the friction plate; carrying out thermo-mechanical coupling analysis by the aid of finite element software; acquiring stress values of discrete points of friction pairs according to temperature fields and contact pressure fields; determining maximum parameters of influence factors by the aid of PB (Plackett-Burman) experimental designs so as to obtain first-order fitting curves of the discrete points; acquiring the optimal solution by the aid of response surface design processes. The method has the advantages that influence of uneven contact pressures can be predicted, design variables can be changed, accordingly, the unevenness of wear can be compared, and the method is wide in application range and can be widely applied to designing different types of contact dry friction wear analysis.

Description

Technical field [0001] The invention relates to the field of friction linings or wear optimization design fields of motor vehicles, in particular to a friction lining and a method for reducing uneven wear of the optimized friction lining. Background technique [0002] The uneven wear of the friction linings of automobile disc brakes is an engineering problem that often occurs during automobile braking. Wear will affect the service life of the friction plate, and uneven wear will make the detection inaccurate. Therefore, uneven wear of the friction plate has become one of the current problems. With the rapid increase in the number of automobiles in my country, disc brakes are widely used, and the wear of friction linings has attracted much attention. In the prior art, by optimizing the friction plate to reduce wear and its unevenness, the product is usually designed according to actual needs, and then the load is applied to the product for experimentation. If the requirement is ...

Claims

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Application Information

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IPC IPC(8): G06F17/50F16D69/00
CPCF16D69/00G06F30/15G06F30/17G06F30/23
Inventor 潘公宇蔡荣誉李韵朱瑞陈磊周海超
Owner JIANGSU UNIV
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