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Air braking system element pressure response simulation model library construction method

A simulation model library and pneumatic braking technology, which is applied in design optimization/simulation, special data processing applications, geometric CAD, etc., can solve problems such as poor model reusability, reduce repetitive modeling work, and improve work efficiency , the effect of reducing the difficulty of modeling

Active Publication Date: 2021-11-16
WUHAN UNIV OF TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

When simulating air brake systems with different structures, it is necessary to re-establish the simulation model of each component, and the reusability of the model is not strong

Method used

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  • Air braking system element pressure response simulation model library construction method
  • Air braking system element pressure response simulation model library construction method
  • Air braking system element pressure response simulation model library construction method

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Embodiment Construction

[0052] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] The object of the present invention is to provide a method for constructing a pressure response simulation model library of air brake system components. In order to illustrate the technical solutions of the present invention, specific examples are given below.

[0054] Step 1: Make assumptions about the gas state, pressure loss, component connection state, component stress state, etc. in the pneumatic brake system.

[0055] The gas is an ideal gas, which satisfies various laws of ideal gases;

[0056] Neglect the pressure loss caused by gas flow, and ignore the gas leakage at the joint seals in the system; the flow of gas at the joints and valve ports is an isentropic process, and the dynamic process is a quasi-equilibrium process;

[00...

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Abstract

The invention discloses a method for constructing an element pressure response simulation model library of a pneumatic braking system, which is characterized by comprising the following steps of: firstly, establishing pressure response simulation models of basic pneumatic elements and key components in the pneumatic braking system, and then integrating the simulation models by using numerical calculation software; constructing an element pressure response simulation model library of the air braking system; and the method has strong applicability and compatibility, is irrelevant to a platform, and is suitable for different numerical calculation software or programming languages. Meanwhile, the modeling difficulty is greatly reduced; repeated modeling work is reduced, the models in the model library can be quickly applied to different air braking systems, and the working efficiency of modeling personnel is greatly improved.

Description

technical field [0001] The invention relates to the field of automobile braking, in particular to a numerical modeling method for calculating and analyzing the braking pressure response of a vehicle air braking system, in particular to a method for constructing a pressure response simulation model library of an air braking system component. Background technique [0002] The pneumatic brake system uses compressed gas as the working medium. It forms basic circuits with different functions through various components, and then organically combines several basic circuits as a whole to carry out power or signal transmission and control. The key to the design of the pneumatic braking system is to start with the improvement of the air source system, select the best and rationally use the pneumatic components, comprehensively use aerodynamic fluid mechanics and pneumatic system dynamics, and design the circuit of the pneumatic braking system so that the terminal gas pressure is in acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F30/15
CPCG06F30/20G06F30/15Y02T90/00
Inventor 胥军向前
Owner WUHAN UNIV OF TECH
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