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一个分析解决方案,用于动态不稳定和振动分析的结构成员与开放和封闭的部分
Meng-Jing Wu1, Jue Zhu2, Xu-Hao Huang1
1Zhejiang Provincial Engineering Research Center for the Safety of Pressure Vessel and Pipeline, Key Laboratory of Impact and Safety Engineering, Ministry of Education, Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, People's Republic of China.
Scientific reports
|February 11, 2025
概括
一个新的弹板模型准确地分析了薄壁结构的振动和曲. 该模型考虑了板相互作用,这对于工程设计中的结构稳定性和抗震性至关重要.
科学领域:
- 结构工程 结构工程
- 机械工程 机械工程
- 应用数学 应用数学 应用数学
背景情况:
- 开放和封闭的部分成员在工程中非常重要,因为它们的抗性.
- 不同板块段之间的相互作用显著影响结构机械行为.
- 准确的分析模型对于研究结构的静态和动态行为至关重要.
研究的目的:
- 提出一种新的弹板模型,用于分析成员的振动,静态和动态曲.
- 为了准确地描述使用合多项式和三角数序列的板块限制.
- 为了确定单板和双板约束器的旋转约束刚度.
主要方法:
- 开发一个弹板模型,通过合多项式和三角数序列来描述变形.
- 应用雷利-里茨方法来获得对振动和曲折的分析解决方案.
- 利用博洛丁理论来识别周期性负荷下的动态曲折区域.
主要成果:
- 拟议的模型准确地描述了板的特性,并确定了旋转度.
- 成功地获得了对振动和曲问题的分析解决方案.
- 确定了动态曲区域,表明结构不稳定的条件.
结论:
- 弹板模型是分析薄壁结构振动和不稳定的有效工具.
- 模型结果与有限元法 (FEM) 的发现保持一致,验证了其准确性.
- 了解振动和动态行为可以提高结构安全性,稳定性和抗震性.
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