The basic hexahedral module can be deployed and stowed with the motion of the spring in the diagonal stretchy member , so is the whole structure 该抛物面天线的基本组成单元是六棱柱，其展开驱动力主要依靠对角杆件中的拉伸弹簧。
Some results are drawed through research . it is carried out to provide bases for establishing the damage detection system in the paper 通过对杆件节点刚度的折减计算分析得出了一些有意义的结论，为结构节点损伤诊断系统的建立提供依据。
Firstly , in respect of the cycling equipment , i use the method of analyzing lever to build the kinematic and dynamic model of cycling 首先,结合fes脚踏车系统机械运动装置的特点,用杆件运动分析方法,建立了蹬踏运动的运动学和动力学模型。
Second , the dynamic equations of a manipulator with flexible links and non - linear torsion springs are developed by using flexible rotor beam element 接着，利用柔性转子梁模型，推导出了具有柔性杆件和柔性非线性关节机器人的动力学方程。
Compared with classic methods , the method presented in this paper has its advantages and can be regarded as a theoretical complement 同经典方法相比，本文方法有自己的优点，只需某一阶振动频率及其主振型即可直接求解杆件边界条件，可作为一种理论上的丰富。
By an example , the warping theory of the thin - walled beam is compared with and distinguished from gbt , while the contribution and the defect of the former is presented 本文通过算例对广义梁理论和薄壁杆件翘曲理论进行了比较研究，并指出了后者的贡献和局限性。
