Simulation acquisition method for friction coefficient of friction plate

A technology of friction coefficient and acquisition method, applied in the field of brake friction coefficient measurement and tracked vehicle transmission, can solve the problems of low precision and high labor intensity, and achieve the effect of high precision, low labor and low cost

Inactive Publication Date: 2017-01-25
LIAONING INST OF SCI & TECH +1
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: a proposed method for obtaining the simulation of t...

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  • Simulation acquisition method for friction coefficient of friction plate
  • Simulation acquisition method for friction coefficient of friction plate
  • Simulation acquisition method for friction coefficient of friction plate

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Embodiment Construction

[0018] In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode and in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, a simulation acquisition method for the friction coefficient of the friction plate, the implementation steps are as follows:

[0020] Step 1. First, wipe the surface to be analyzed with 95% alcohol to remove oil stains on the friction surface, so as to avoid the accuracy of data collection and reduce error points. Place the friction sheet under a laser microscope, select a 3mm×3mm area as the research object, use the laser microscope to perform surface imaging processing on the sample to be studied, and obtain the micro-morphological characteristics of the friction sheet through a computer acquisition system, as shown in figure 2 shown;

[0021] Step 2. Set the sampling lattice density on the computer. The lattice density will affect the...

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Abstract

The invention discloses a simulation acquisition method for friction coefficient of friction plate, comprising the steps ofstep 1) the surface of the new friction plate is subjected to image processing to obtain the micro-topographic features of the friction plate; step 2) set the lattice density of sampling, output the lattice data that describes the characteristic of the surface of the friction layer and perform the interpolation processing to obtain the fitting surface;step 3) three - dimensional model reconstruction is performed on the fitting surface basis; step 4) the imported entities are meshed to obtain the finite element analysis model; step 5) the initial speed, the stop speed, the braking time and the pressure of the friction plate in the actual work is obtained;step 6) the boundary condition of the actual working condition is applied and the friction simulation analysis is carried out and step 7) compare with the actual measured values, constantly correct the simulation boundary conditions. The method can effectively and accurately obtain the friction coefficient of the friction plate, which is simple and has long-term development prospect compared with the physical mapping.

Description

technical field [0001] The invention belongs to the technical field of brake friction coefficient measurement in the field of crawler vehicle transmission, and in particular relates to a method for simulating and obtaining the friction coefficient of a friction plate. Background technique [0002] High-energy-density friction transmission system is the key to high-performance transmission. Its notable features are high power and high speed. Cu-based and Fe-based powder metallurgy friction pairs are widely used in crawler belts due to their excellent wear resistance and high heat capacity. The transmission field of the vehicle. With the increase in the frequency of use of locomotive brakes, the wear and tear of locomotive brakes is becoming more and more serious, resulting in smaller and smaller friction coefficients of the brakes, which is likely to cause safety hazards. [0003] The current method of roughly estimating the friction coefficient of the brake friction plate o...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/17G06F30/23Y02T90/00
Inventor 张军王延忠苏国营陈亚光陈锐汪大鹏
Owner LIAONING INST OF SCI & TECH
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