• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International conference on transportation engineering >Structure Sensitivity of the CRH3 EMU Based on FEM
【24h】

Structure Sensitivity of the CRH3 EMU Based on FEM

机译：基于有限元的CRH3动车组结构灵敏度

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The bodywork structure sensitivities can provide modification direction information in structure design and optimization. This research focuses on the CRH3 bodywork, in which the finite element model is established by implementation of Hypermesh software, meanwhile the modals are performed by use of finite element method. The chassis, side wall, top plate, end wall and other part thicknesses are used as the design variables, and consequently the sensitivities of the CRH3 bodywork modal frequencies to the design variables are achieved by use of numerical differential method. Results show that the sensitivities of the modal frequencies to the chassis and the side wall are maximum and to the top plates are lesser. For the end wall and the chassis front end, the sensitivities are negative.
机译：车身结构敏感性可以在结构设计和优化中提供修改方向信息。这项研究集中在CRH3车身上，其中通过实施Hypermesh软件建立有限元模型，同时使用有限元方法执行模态。底盘，侧壁，顶板，端壁和其他零件的厚度用作设计变量，因此，通过使用数值微分方法可以实现CRH3车身模态频率对设计变量的敏感性。结果表明，模态频率对底盘和侧壁的敏感度最大，对顶板的敏感度较小。对于端壁和机箱前端，灵敏度为负。

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