基于动力设计分析方法的水下航行体载荷冲击响应谱

来源 :中国计算力学大会2018暨国际华人计算力学大会2018 | 被引量 : 0次 | 上传用户:wumoxiao
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  水下航行体在出水阶段会受到水动力冲击载荷作用,激起结构较大瞬态响应,这对于结构设计极为重要。目前在结构动力设计时往往采用时程分析方法,通过动力学有限元计算才能得到内载荷响应,计算量大,不便于实际工程应用。
其他文献
  Additive manufacturing technology plays an important role in the development of the modern industry,additive manufactured aluminum(Al)becomes the hotspot of
  EDF is an international utility with a large fleet of nuclear reactors,including 58 in France only.EDF must ensure with credibility and in the long run the
  研究泡沫夹芯壁板压缩稳定性及后屈曲承载能力对结构减重设计具有重要意义。本文基于连续介质损伤力学及黏聚区模型,建立了泡沫夹芯壁板在压缩载荷作用下的屈曲及后屈曲渐
  为确定预冷器在水压试验中严重变形原因,分别取不同接触状态的换热管为研究对象,基于大变形假设,采用点、面接触建立含大量接触约束的非线性有限元模型。研究横向变形以及内
  桥梁拉索长期承受交变载荷并暴露于自然环境中,腐蚀疲劳破坏是其典型的失效模式之一。为了探究索用钢丝的腐蚀疲劳破坏全过程,本文从点蚀加速裂纹成核的机理出发,结合元胞自
  The dynamic behaviour of a bolted joint excited by torsional excitation is studied using experimental and theoretical methods.Firstly,hysteresis loops of th
  Analytical method and finite element method were used to study local temperature rise,deformation and thermal stress response of a thin plate under local un
  In recent years,the phenomenon of icing and tower collapse on transmission lines has seriously affected the safe and stable operation of Chinas power system
  Crashworthiness is one of the most important requirements for design of aircraft to ensure the safety of passengers.With the rapid development of composite
  Nowadays,industry shows great interest in producing complex products with high performance and robustness.Currently,3D printing or said additive manufacturi