噪声与振动控制2019，Vol.39Issue(4)：26-31,74,7.DOI:10.3969/j.issn.1006-1355.2019.04.005
基于磁流变技术的压桩机吊机回转启动冲击控制
Control of Shock Vibration of Crane Slewing System of Pile Driving Machinery based on Magnetorheological Technology
摘要
Abstract
Aiming at the impact loads caused by sudden start of the crane slewing system of pile driving machinery, a method for controlling the shock vibration is put forward based on magnetorheological technology. According to the start working characteristics of the crane slewing system and the working principle of the magnetorheological coupling, the bond graph model of the slewing system is established, and the dynamic mathematic model of rotary transmission process is derived from the bond graph model. The transmission characteristics of the coupling and its effect on slewing system are analyzed based on MATLAB software. The results show that the stiffness coefficient of the coupling is small when the input current is small, which causes the system response to lag; the coupling tends to stiffen the connection when the input current is large, which causes the fast response of the system. When the damping coefficient of coupling is small, its energy dissipation is less, which has little impact on the system transmission efficiency. The magnetic delay effect of the coupling can effectively control the impact load peak value and the pulse width, and increase the service life of the slewing gear.关键词
振动与波/压桩机吊机/回转系统/磁流变联轴器/冲击载荷/仿真Key words
vibration and wave/ crane of pile driving machinery/ slewing system/ magnetorheological coupling/ impact load/ simulation分类
机械制造引用本文复制引用
庹前进,胡均平..基于磁流变技术的压桩机吊机回转启动冲击控制[J].噪声与振动控制,2019,39(4):26-31,74,7.基金项目
国家自然科学基金资助项目(51175518) （51175518）
湖南省教育厅科学研究基金资助项目(17C0576) （17C0576）
