In this method, the structural model is updated by modifying the parameters of design, and validated by structural natural vibration characteristics as well as stress-time response of the main members of NYRB.
根据灵敏度的物理意义，从简单实用的角度出发，充分利用现有的大型有限元分析程序，提出了以结构设计参数为修改参数，以结构自振特性为目标函数，以结构应力时程响应为验证参数的有限元模型修正方法。
参考来源 - 南京长江大桥结构健康监测及其关键技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This paper studied mainly on static characteristics, natural vibration characteristics and linear stability of cylindrical vierendeel latticed shell.
本文主要研究了柱面空腹网壳结构的静力特性、自振特性和线性稳定性。
In this paper, the basic relations of the natural vibration characteristics of framed structures have been studied by means of the dynamic finite element method.
本文用动力有限单元法对框架式结构自振特性基本规律进行了一定的研究。
According to the measurement and analysis of natural vibration characteristics of tube heater, a simplified calculating method and empirical formulae were suggested.
根据管式加热炉结构和动力特征的实测结果，提出了简便的计算方法和经验公式。
应用推荐