Geometric nonlinear formulation for curved beams with varying curvature

• 作 者: Keqi Pan Jinyang Liu
• 机 构: SchoolofNavalArchitecture
• 出 处: 力学快报：英文版
• 发表日期: 2012年6期
• 关键词: 空间曲梁 几何非线性 曲率 非线性动力学特性 配方 曲柄滑块机构 刚柔耦合 物理实验 curved beam rigid-flexible coupling
• 基金项目: This work was supported by the Research Fund for the Doctoral Program of Higher Education of China （20100073110007） and the Key Project of National Natural Science Foundation of China （11132007）.

Based on exact Green strain of spatial curved beam,the nonlinear strain-displacement relation for plane curved beam with varying curvature is derived.Instead of using the previous straight beam elements,curved beam elements are used to approximate the cur