山东建筑大学学报2017，Vol.32Issue(4)：307-310,338,5.
塔式起重机运动惯性力引起货物摆动特性分析
Analysis of cargo oscillation caused by inertia force of mechanism motions for tower cranes
摘要
Abstract
Cargo oscillation,induced by mechanism motions of tower cranes,reduces work efficiency and safety of cranes.Therefore,it is necessary to analyze the swing performances induced by motion inertial forces of the mechanisms to explore the control theories and methods for restraining the cargo oscillation.In this paper,the dynamical models of the tower crane based on Lagrange-Euler equation of motion are set up and the oscillation characteristics induced by inertia force of the mechanism movements are analyzed.Then the calculation formula of the swing angle and angular velocity caused by the inertia force are deduced.The expression for calculating the inclination angle of the cargo oscillation centerline is proposed and the formula of the maximum oscillation angle induced by the inertial forces are put forward.The validity of the formula is proven by simulation.The simulation results show that the motion inertia forces of the translation mechanism and the rotation mechanism of the tower crane make the cargo oscillate in space swing.The centrifugal force and the Coriolis force further increase the oscillation amplitude.The oscillation center line tilts are induced by the common effect of the inertia force,the centrifugal force and the Coriolis force and deviates from the original balance position.关键词
塔式起重机/货物/惯性力/摆动幅值Key words
tower crane/cargo/inertia force/oscillation amplitude分类
机械制造引用本文复制引用
董明晓,张恩,韩松君,王胜春..塔式起重机运动惯性力引起货物摆动特性分析[J].山东建筑大学学报,2017,32(4):307-310,338,5.基金项目
国家自然科学基金项目(51475277) （51475277）
山东省高端外国专家项目(370020121030) （370020121030）
山东省科技发展计划项目(2013GCG20303) （2013GCG20303）
