Research on Dynamic Characteristic Analysis and Energy Consumption Modeling of Five-axis CNC Machine Tool Based on Bond Graph

doi:10.3901/JME.2023.07.241

Abstract

Abstract: The manufacturing industry is the main source of carbon emissions in our country. High-efficiency and energy-saving machine tools are the key to the manufacturing industry to achieve the goal of "emission peak" and "carbon neutrality". The dynamic characteristic analysis and energy consumption modeling of machine tools are important parts for their design with energy-saving. This paper takes the sub-axis systems of the five-axis CNC machine tool as the research object. In view of its characteristics of unclear energy interaction, high degree of freedom and complex structure, a mathematical model of dynamic characteristic and energy consumption model are established based on bond graph theory. The dynamic characteristics of the sub-axis systems of the machine tool and the key variables which are strongly related to the energy consumption model are comprehensively considered. Then, a dynamic simulation model is established by using the Matlab-Simulink. Simulation analysis and experimental verification results show that the proposed mathematical model of the dynamic characteristic and energy consumption model based on bond graph theory is reasonable and effective. The model has practical guiding significance for in-depth analysis of the dynamic characteristics of the sub-axis systems of the machine tool, understanding of its energy transfer characteristics, and guiding its high-efficiency optimization design.

Key words: energy consumption modeling, dynamic characteristic analysis, five-axis linkage, bond graph

CLC Number:

TG502

ZHANG Yunfeng, LI Lingling, LIU Wei, ZHAO Junhua, CAI Wei, LI Li. Research on Dynamic Characteristic Analysis and Energy Consumption Modeling of Five-axis CNC Machine Tool Based on Bond Graph[J]. Journal of Mechanical Engineering, 2023, 59(7): 241-251.

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