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Pump truck load-sensitive proportional multi-way valve simulation modeling method based on Modelica language

A proportional multi-way valve and load-sensitive technology, which is applied in simulators, instruments, control/regulation systems, etc., can solve the problems of not being able to effectively and accurately reflect structural parameters, simulation accuracy, modeling efficiency, and simulation speed. , to achieve the effects of simple and clear modeling and high simulation efficiency

Inactive Publication Date: 2012-07-04
仲作阳 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In view of the above two model construction methods, either cannot effectively and accurately reflect the inherent characteristics of the valve such as structural parameters, or cannot give model users an intuitive and concise cognition and understanding, and their simulation accuracy, modeling efficiency and simulation speed, etc. Not ideal

Method used

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  • Pump truck load-sensitive proportional multi-way valve simulation modeling method based on Modelica language
  • Pump truck load-sensitive proportional multi-way valve simulation modeling method based on Modelica language
  • Pump truck load-sensitive proportional multi-way valve simulation modeling method based on Modelica language

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the present invention will be further described as follows:

[0033] The simulation modeling steps of the pump truck load-sensitive proportional multi-way valve based on the Modelica language include: system dismantling, element-level modeling, subsystem-level modeling and system-level modeling. Firstly, the load-sensitive proportional multi-way valve of the real pump truck is dismantled at the system level, and a series of physical system models are constructed, mainly including the mechanical system, hydraulic system and control system. Then, the obtained subsystems are decomposed to obtain components in different fields. Carry out modeling analysis for the basic components obtained by decomposing, and then use the above basic components to build each subsystem of the pump truck load-sensitive proportional multi-way valve, and then use the constructed subsystems to build a complete pump truck load-sensitive proportional ...

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Abstract

The invention relates to the field of pump truck arm rest simulation systems, in particular to a pump truck load-sensitive proportional multi-way valve simulation modeling method based on a Modelica language, which includes the steps: 1 system disassembly; 2 element-level modeling; 3 subsystem-level modeling; 4 system-level modeling; 5 simulation control; and 6 simulation result demonstration. By analyzing the structure, the function and main technical parameters of a load-sensitive proportional multi-way valve of a pump truck arm rest system and by adopting the multi-field unified modeling Modelica language for an object-oriented physical system, the integral model building method for a mechanical and hydraulic load-sensitive proportional multi-way main control valve controlling multi-field coupling is provided, the model structure of the multi-way valve is built by a Mworks platform, the main parameters are set, and example working condition simulation analysis is performed, so that the simulation modeling method is simple and clear, and has high simulation precision and modeling efficiency.

Description

[technical field] [0001] The invention relates to the field of pump truck boom simulation systems, in particular to a pump truck load-sensitive proportional multi-way valve simulation modeling method based on the Modelica language. [Background technique] [0002] In the concrete pump truck boom system, the load-sensitive proportional multi-way valve performs proportional commutation according to the control signal, and controls the movement of the hydraulic cylinder or hydraulic motor by adjusting the outflow area and hydraulic flow of each orifice, thereby realizing the boom Extend or rotate. Because the multi-way valve can realize the stepless control of the boom movement, and has nothing to do with the load change; it can perform multi-cylinder combined action to meet the simultaneous work of multiple actuators; it has high integration, saves installation space, and reduces the weight of the whole machine. Therefore, it is widely used in construction machinery. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
Inventor 仲作阳孟光李明荆建平何淑芬明媚
Owner 仲作阳
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