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
CN102540901AInactive Publication Date: 2012-07-04仲作阳 +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
仲作阳
Publication Date
2012-07-04
Estimated Expiration
Not applicable · inactive patent

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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.
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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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