司机-起重机-轨道系统动力学建模与分析  

Dynamics Modeling and Analysis of Hoistman-crane-rail System

作　　者：辛运胜 董青[1] 戚其松[1] XIN Yun-sheng;DONG Qing;QI Qi-song(School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China)

机构地区：[1]太原科技大学机械工程学院,太原030024

出　　处：《科学技术与工程》2020年第12期4706-4712,共7页Science Technology and Engineering

基　　金：国家重点研发计划(2017YFC0805703);山西省应用基础研究计划(201901D211288);山西省高等教育科技创新项目(2019L0649);山西省研究生优秀创新项目(2017BY118);太原科技大学博士科研基金(20182037);山西省优秀博士奖励资助基金(20192018);山西省科技重大专项(20181102002)。

摘　　要：针对轨道缺陷下起重机运行过程中结构振动特性、司机舒适性等问题,提出基于司机-起重机-轨道系统动力学模型。根据拉格朗日方程建立司机-起重机-轨道系统振动微分方程,并通过精细积分法(PTSIM)求解系统振动时域响应。以100/40 t-28.5 m铸造起重机为例,分析了大车运行速度和轨道缺陷对起重机和司机振动的影响。提出的模型和方法为起重机设计、分析和人体各部位动态响应提供理论依据与参数基础。Aiming at the problems of structural vibration characteristics and hoistman comfort during the running of cranes under rail defects,a dynamic model based on hoistman-crane-rail system was proposed.The hoistman-crane-rail system vibration differential equations were established according to the Lagrange equation,and the system vibration time domain responses were solved by the precise time step integration method(PTSIM).Taking the 100/40 t-28.5 m casting crane as an example,the influence of the running speed of cart and the rail defects on the vibration of crane and hoistman was analyzed.The proposed model and method provide theoretical basis and parameter basis for crane design,analysis and dynamic response of human body parts.

关 键 词：起重机 轨道缺陷 动力学响应 司机-起重机系统 精细积分法 

分 类 号：TH215[机械工程—机械制造及自动化] TH113