摘要
桥式起重机常常受到如空气阻力、风载荷影响、系统自身阻尼、轨道变化以及运动过程中的摩擦力等多种因素的干扰,这些不确定的因素对负载摆动有着不可避免的影响。对起重机建立准确模型是研究桥式起重机的电子防摇控制策略的基础。从桥式起重机四大组成部分的功能出发,分析起重机一个作业循环以及大小车运行时的受力情况:包括由轨道缺陷导致的负载阻力、绳长弹性形变以及风载等。建立桥式起重机-负载三维动力学数学模型,基于MATLAB对仿真结果进行分析。研究结果表明:驱动力大小、风载以及负载质量在不同程度下会促进负载的摆动,且当这些因素保持不变时,摆角增速有所下降。
The bridge crane is often disturbed by various factors, such as air resistance, wind load impact, system self-damping, track change, and friction during exercise, these uncertainties factors often have an inevitable impact on load swing. Establishing an accuracy model for the crane is the basis for studying the electronic anti-shake control strategy of bridge cranes. The model research started from the four components of the bridge crane, a homework cycle of a crane and the force of the large-catching car operation were analyzed, which included wind load, hoisting quality, and additional resistance caused by rail defects. A bridge crane-load-three-dimensional kinematical model was established and the simulation results were analyzed based on MATLAB. The results show that: the driving force size, the wind load and the load quality can promote the oscillating of the load at different degrees, and when these factors remain unchanged, the swing angle growth decreases.
作者
余震
王海兰
余进
胡柯
任豪豪
YU Zhen;WANG Hailan;YU Jin;HU Ke;REN Haohao(Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education,Wuhan University of Science and Technology,Wuhan Hubei 430081,China;Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering,Wuhan University of Science and Technology,Wuhan Hubei 430081,China)
出处
《机床与液压》
北大核心
2022年第22期143-149,共7页
Machine Tool & Hydraulics
关键词
桥式起重机
风载
摆角模型
仿真
Bridge crane
Wind load
Swing angle models
Simulation
作者简介
余震(1973-),男,博士,教授,主要研究方向为智能材料应用及智能结构设计、复杂机电系统设计与仿真、起重运输机械故障诊断及寿命评估等方面。E-mail:yuzhen@wust.edu.cn;通信作者:余进(1995-),男,硕士,主要从事起重机结构设计、防摇摆技术方面的研究。E-mail:wustyj623@163.com。
