• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings of the Fifteenth international conference on civil, structural and environmental engineering computing >Structural Optimization of Reinforcement considering the Fatigue Life in a Dynamic System
【24h】

Structural Optimization of Reinforcement considering the Fatigue Life in a Dynamic System

机译：考虑动力系统疲劳寿命的钢筋结构优化

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper a new topology optimization method that can consider fatigue life is presented. The fatigue life is the time until the fracture of the structure occurs. To estimate the fatigue life in the frequency domain, a method that consists of the power spectrum density (PSD) function and the probability density function (PDF) is used and it is called a narrow band solution. The narrow band solution is the general method for the narrow band frequency region. In this research, the design domain consists of two layers and optimization is conducted in the top layer (the bottom layer is excluded from the optimization procedure). This is because the design of the reinforcement is to be kept as in the original structure. Moreover because this method is also related to stress based topology optimization, the qp-relaxation and p-norm method are used to overcome the singularity problem and local behaviour.
机译：本文提出了一种可以考虑疲劳寿命的新的拓扑优化方法。疲劳寿命是直到结构断裂发生的时间。为了估计频域的疲劳寿命，使用了一种由功率谱密度（PSD）函数和概率密度函数（PDF）组成的方法，该方法称为窄带解决方案。窄带解决方案是用于窄带频率区域的通用方法。在本研究中，设计领域由两层组成，并且在顶层进行了优化（最底层不包括在优化过程中）。这是因为加强件的设计应与原始结构保持一致。此外，由于此方法还与基于应力的拓扑优化有关，因此使用qp松弛和p范数方法来克服奇异性问题和局部行为。

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