The model of a spatial flexible rotor beam element is presented, and the dynamic equations of spatial manipulators considering joint and link flexibility is derived.
提出了空间柔性转子梁单元模型，建立了考虑关节及杆柔性的空间机器人动力学方程。
Finally, a novel spatial truss mechanism model for the beam-wider-than-wall joint is put forward.
最后还提出了梁筋直锚型节点受力的空间桁架模型。
Force transfer mechanism of the vertical stiffener joint model with only tensile beam flange is analyzed.
本文对外肋环板节点梁翼缘受拉模型的传力机理进行了分析。
The mortise and tenon joint of the structure is replaced by a special beam-element group in the finite element model.
引入梁单元组模拟斗拱连接，从而建立了具有木塔较细致结构的有限元计算模型。
Based on the 3D analysis result, shear models of ring joint bolt is built and shear parameters between rings needed in 2D analysis with beam-spring model can be obtained by this shear model.
然后，在对三维有限元分析结果研究的基础上，建立了环缝处的纵向螺栓剪切模型，利用该模型可以计算得到错缝拼装衬砌二维梁-弹簧模型中环间剪切弹簧的刚度；
Based on the 3D analysis result, shear models of ring joint bolt is built and shear parameters between rings needed in 2D analysis with beam-spring model can be obtained by this shear model.
然后，在对三维有限元分析结果研究的基础上，建立了环缝处的纵向螺栓剪切模型，利用该模型可以计算得到错缝拼装衬砌二维梁-弹簧模型中环间剪切弹簧的刚度；
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