起重机伸缩臂截面参数对屈曲临界载荷的影响  

Influence of Extending Jib Section Parameters of Crane on Critical Buckling Load

作　　者：张喜逢[1] 宋轶 刘义 帖晓春 郭上峰 田源[1] Zhang Xifeng;Song Yi;Liu Yi

机构地区：[1]太原重工股份有限公司,山西省太原市030000

出　　处：《工程机械》2023年第12期126-129,I0019,共5页Construction Machinery and Equipment

摘　　要：以260 t级8节臂全地面起重机为研究对象,利用全地面起重机性能计算模块建立起重机的性能计算模型,建立伸缩臂的简化模型,研究伸缩臂结构参数中截面尺寸、高宽比、径厚比、上下盖板厚度对屈曲临界载荷的影响规律,根据研究结果和工程设计经验总结归纳出伸缩臂结构参数设计选择方法,为伸缩臂结构初始设计提供理论参考。Taking a 260 t 8-section-jib all-terrain crane as the research object,the allterrain crane performance calculation module is used to establish a performance calculation model of the crane and a simplified model of the extending jib to study the influence of section dimensions,aspect ratio,diameter-tothickness ratio and upper and lower cover plate thickness in the structural parameters of the extending jib on the critical buckling load.Based on the research results and engineering design experience,the design and selection method of structural parameters of the extending jib is summarized,which provides a theorical reference for the initial design of the extending jib structure.

关 键 词：伸缩臂 截面参数 屈曲临界载荷 起重性能 

分 类 号：TH21[机械工程—机械制造及自动化]