Modelica-language-based simulation modeling method for pump truck boom system

Abstract

The invention relates to the technical field of pump truck boom simulation systems, in particular to a Modelica-language-based simulation modeling method for a pump truck boom system. The method comprises the following steps of: 1) system disassembly; 2) part modeling; 3) system level modeling; 4) simulation control; and 5) the curve demonstration of simulation results. The pump truck boom system can be modeled and simulated in a way of coupling a plurality of fields of mechanics, hydraulics, control and the like according to the characteristics of high readability, convenience for modification, high availability, modularization, hierarchy, standardization, parametrization, high simulation model interoperability and reusability and the like of a Modelica language; in addition, the Modelica language has high mathematical solving capability, and a developer is not required to perform any transformation on a nonlinear equation, so that a high-efficiency and convenient auxiliary design means is provided for engineering technical personnel; and moreover, the modeling method is concise, clear and high in simulation accuracy and modeling efficiency.

Description

[technical field] [0001] The invention relates to the technical field of pump truck boom simulation systems, in particular to a pump truck boom system simulation modeling method based on the Modelica language. [Background technique] [0002] The boom system of the concrete pump truck is used for conveying and distributing concrete. Through the expansion and contraction of the boom cylinder and the rotation of the turntable, the concrete is directly delivered to the position pointed by the end of the boom through the delivery pipe attached to the boom, that is, the pouring point. During the frequent starting and braking process, the mechanism and structure of the boom system are subjected to strong shock and vibration, which is a typical multi-field coupling system such as machinery, hydraulic pressure and control. Therefore, it is particularly important and urgent to conduct reasonable, scientific and comprehensive multi-field dynamic modeling and simulation of the boom mech...

AI Technical Summary

Problems solved by technology

Although this idea provides a method to solve multi-energy domain coupling dynamics simulation, it is difficult to achieve seamless integration of various tools in this method

And problems in different fields use different tools to build different models for simulation, and it is bound to encounter complex problems of data transmission. Models are repeated and cannot be reused, which will lead to problems in simulation accuracy, modeling efficiency, and simulation speed.

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