...
首页> 外文期刊>Intelligent Transport Systems, IET >Analysis on fatigue life of overhead travelling crane girder under impact load for sustainable transport system
【24h】

Analysis on fatigue life of overhead travelling crane girder under impact load for sustainable transport system

机译:可持续运输系统冲击载荷下架空行进起重机梁疲劳寿命分析

获取原文
获取原文并翻译 | 示例
           

摘要

As the main bearing structure of the crane, the girder structure determines its service life. While the girder structure meets the strength, stiffness, and stability, its fatigue life should be paid more attention. A strong impact will be caused by the overhead travelling crane running through the uneven track joint. Based on SolidWorks and automated dynamic analysis of mechanical systems, the virtual prototype of 480 t overhead travelling crane operation is established in this study. The operation simulation of various track height differences is carried out. Compared with the theoretical calculation of GB and ISO, the virtual prototype is verified. Through the strain test and finite-element calculation of stress of girder under the two working conditions including the main car with a load of 433 t running to the mid-span and span end of the girder, the stress concentration in the transition rounded corner of the girder is found. On the basis of the simulation load spectrum and finite-element static stress analysis, combined with the S–N curve of material, the fatigue damage and life prediction model of the 480 t overhead travelling crane girder is established. The minimum life of the dangerous part is obtained, providing a basis for the design and maintenance.
机译:作为起重机的主轴承结构,梁结构决定了其使用寿命。虽然梁结构符合强度,僵硬和稳定性,但其疲劳生活应得到更多关注。通过不均匀的轨道关节跑步的开销起重机将引起强烈的影响。基于机械系统的SolidWorks和自动动态分析,在本研究中建立了480T架空行驶起重机操作的虚拟原型。进行各种轨道高度差异的操作模拟。与GB和ISO的理论计算相比,验证了虚拟原型。通过应变试验和有限元压力在两个工作条件下包括主轿厢的梁应力,包括载荷的433 T跑到中间跨度和跨度梁的横向末端,转变圆角的应力集中发现了梁。基于模拟负载谱和有限元静态应力分析,结合材料的S-N曲线,建立了480吨架空行驶起重机梁的疲劳损坏和寿命预测模型。获得危险部件的最小寿命,为设计和维护提供基础。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号