基于子模型法的大吨位架桥机裂纹结构分析  

A submodel method-based analysis of the crack in heavy-duty bridge erecting machine

作　　者：孙远韬[1] 张氢[1] 

机构地区：[1]同济大学机械工程学院

出　　处：《起重运输机械》2010年第5期28-31,共4页Hoisting and Conveying Machinery

基　　金：武汉科技大学机械传动与制造工程湖北省重点实验室开放基金资助(2007A22)

摘　　要：以大吨位架桥机裂纹结构为例,应用子模型技术改变裂纹区域的网格密度,提高了结构局部的计算精度,显著减少了计算规模,缩短了计算时间,为裂纹结构的局部分析提供了有效的途径。Using the crack structure associated with heavy-duty bridge erecting machine as an example, this essay employs submodel technology to change the mesh density of the crack area, which not only enhances the calculation preci- sion in local regions of the crack but also reduces the computing scale significantly and consequently the time required for completion of the calculation. The essay provides an effective approach to conducting a local analysis of the crack.

关 键 词：子模型 裂纹 应力强度因子 

分 类 号：U445.36[建筑科学—桥梁与隧道工程]