摘要
轿架是曳引电梯的主要承力结构,其力学性能直接影响着电梯的安全性和可靠性。但是,在轿架设计过程中的力学分析粗糙、设计计算简单且保守等问题造成轿架重量和成本较高。针对以上问题,本文采用理论建模与有限元模拟方法研究了曳引电梯轿架结构的力学行为,重点建立了立柱的强度计算方法。首先,结合典型的曳引电梯轿架结构,分析了轿架的力学传递路线,建立了简化的力学模型;然后,针对均载、前后偏载和左右偏载3种工况,重点对立柱进行了受力分析和力学建模,求解危险截面的最大应力;最后,对轿架进行有限元模拟和力学试验,验证了该理论模型的合理性,为电梯轿架结构设计提供了有效的力学分析和强度计算方法。
The car frame is the main load-carrying structure of the traction elevator.The mechanical property of the car frame affects the safety and reliability.However,the traditional mechanical analysis and design calculation are too simple and conservative in causing high weight and cost.To solve the problems above,the analytical modeling and finite element analysis(FEA)are conducted to study the mechanical behaviors of the car frame and strength calculation method for the columns.Firstly,based on the typical structures of traction elevator frame,the force route in the car frame is analyzed with a simplified mechanical model established.Secondly,the mechanical analysis and modeling of the columns are conducted respectively for uniform,right loading and rear loading conditions.The maximum stress of the dangerous section is obtained.Finally,FEA and mechanical experiment on elevator frame are conducted.It indicates that the analytical results are accurate,and that an effective method for mechanical analysis and strength calculation is provided.
作者
宋丹龙
白洋洋
刘凯
张向阳
卢晓民
崔亚辉
SONG Danlong;BAI Yangyang;LIU Kai;ZHANG Xiangyang;LU Xiaomin;CUI Yahui(School of Mechanical and Precision Instrument Engineering,Xi’an University of Technology,Xi’an 710048,China;Hitachi Elevator(China)Co.,Ltd.,Guangzhou 511430,China)
出处
《西安理工大学学报》
CAS
北大核心
2020年第2期214-220,共7页
Journal of Xi'an University of Technology
基金
中国博士后科学基金资助项目(2018M643815XB)
陕西省自然科学基础研究计划资助项目(2018JQ5025)。
关键词
曳引电梯
轿架
受力分析
解析建模
有限元分析
traction elevator
car frame
mechanical analysis
analytical modeling
finite element analysis
