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Temperature field simulated analysis method applied to multi-disk dry brake under comprehensive action of multiple physical fields

A comprehensive effect and multi-physics technology, which is applied in the direction of instruments, electrical digital data processing, and special data processing applications, can solve the problems of immature multi-physics methods for brakes, shorten simulation time, simplify operation difficulty, and improve simulation results. reasonable effect

Inactive Publication Date: 2016-09-21
LIAONING INST OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Currently, multiphysics research methods for brakes are still very immature

Method used

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  • Temperature field simulated analysis method applied to multi-disk dry brake under comprehensive action of multiple physical fields
  • Temperature field simulated analysis method applied to multi-disk dry brake under comprehensive action of multiple physical fields
  • Temperature field simulated analysis method applied to multi-disk dry brake under comprehensive action of multiple physical fields

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Experimental program
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Embodiment Construction

[0038] 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.

[0039] Step 1. Determine the working conditions (mainly load and speed) under the working state of the brake; the geometric dimensions of the friction disc, the dual disc and the pin pressurized structure and the features of the pin pressurized structure provide the necessary parameters for the establishment of the simulation model support.

[0040] Step 2. Establish the 3D model of each part of the brake in Pro / E, and assemble it in the assembly module. According to the complementarity between the brake and its fluid model, create a fluid blank, and then subtract the hub, etc., to generate a fluid model, such as image 3 shown; and then assembled with the brake model in step 2 to form a coupling model.

[0041] Step 3: Divide the frictional contact surface into countless s...

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Abstract

The invention discloses a temperature field simulated analysis method applied to a multi-disk dry brake under the comprehensive action of multiple physical fields. Firstly, a three-dimensional model of the brake is established by starting from the mechanism and movement principle of the multi-disk dry brake. Then according to the complementarity between a fluid field and the brake structure, a rough fluid model is established and then modified and cut, and thus a final fluid model is acquired. Then fluid region and solid region boundary conditions are computed, a heat-flux coupling analysis is performed, and a temperature distribution rule of the whole brake is acquired. At last, a thermo-solid coupling analysis is performed, and a temperature field-to-brake structure deformation parameter is acquired. The temperature field simulated analysis method can achieve the temperature field simulated analysis of the multi-disk dry brake under the comprehensive action of multiple physical fields, is more accurate and reliable than the traditional single temperature field analysis, adopts zonal solving and boundary coupling methods, thus optimizing the information flow among the physical fields, and thus, the simulation is simpler, the operation is convenient and the consumed time is greatly shortened.

Description

technical field [0001] The invention belongs to the technical field of temperature simulation analysis of brake friction pairs in the field of crawler vehicle transmission, and in particular relates to a temperature field simulation analysis method under the comprehensive action of multiple physical fields of a multi-disc dry brake. Background technique [0002] High energy density friction transmission system is the key to high performance transmission. Its distinctive features are high power and high speed. Due to its excellent wear resistance and high heat capacity, it is widely used in the transmission field of tracked vehicles. [0003] The multi-disc dry brake mechanism of an engineering vehicle includes a pin press mechanism, a friction brake mechanism and a support structure. like image 3 As shown, the pin pressurization mechanism is composed of the selection dial 1, the pin 2 and the moving disc 3, the friction brake mechanism is composed of the upper friction disc...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/367
Inventor 孙国军赵双元孙振龙吴向宇苏国营王延忠
Owner LIAONING INST OF SCI & TECH
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