...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advances in Structural Engineering >Performance assessment of an earthquake-based optimally designed fluid viscous damper under blast loading
【24h】

Performance assessment of an earthquake-based optimally designed fluid viscous damper under blast loading

机译：爆炸载荷下基于地震的优化设计流体粘性阻尼器性能评估

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

Terrorist attacks and explosion devices are one of the growing worldwide threats which seriously threaten the safety of strategic structures. The aim of this study is assessing the performance of the linear fluid viscous damper optimally designed based on seismic loading under blast loading. To this end, the control system is first optimally designed under different earthquakes and the performance of the optimally designed fluid viscous damper is evaluated under different external blast scenarios. In order to design the optimal fluid viscous damper for seismic loading, the design problem is transformed into an optimization problem that the genetic algorithm has been used to solve the optimization problem and determine the optimal values of design variables. The fluid viscous damper configuration including size and distribution has been considered as the design variables and the design objective has been defined to keep the structure behavior in the elastic range with a minimum control cost. The optimization results show that the total added optimal damping is dependent on earthquake record, while in this case study the optimal distributions of the fluid viscous damper under earthquake records are not so different. The performance assessment of the earthquake-based optimally designed fluid viscous damper under blast loading shows its effectiveness in achieving the desired design objective. Therefore, in this case study, the fluid viscous damper designed for seismic loading can be considered as a well-designed control system under multi-hazard of blast and earthquake.
机译：恐怖袭击和爆炸装置是世界范围内日益增长的威胁之一，严重威胁着战略结构的安全。这项研究的目的是评估爆炸载荷下基于地震载荷优化设计的线性流体粘性阻尼器的性能。为此，首先在不同地震下对控制系统进行了优化设计，并在不同外部爆炸场景下评估了优化设计的流体粘性阻尼器的性能。为了设计用于地震荷载的最优流体粘性阻尼器，将设计问题转化为优化问题，使用遗传算法解决了该优化问题并确定了设计变量的最优值。包括尺寸和分布在内的流体粘性阻尼器配置已被视为设计变量，并且定义了设计目标，以最小的控制成本将结构性能保持在弹性范围内。优化结果表明，总的最佳阻尼取决于地震记录，而在这种情况下研究的流体粘性阻尼器在地震记录下的最佳分布没有太大差异。在爆炸载荷下，基于地震的优化设计的流体粘性阻尼器的性能评估表明，该阻尼器可有效实现预期的设计目标。因此，在本案例研究中，为地震载荷设计的流体粘性阻尼器可以被认为是在爆炸和地震的多重危害下设计良好的控制系统。

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