首先对弹性五杆机构进行有限元分析，通过机构梁单元节点位移间的关系，建立起弹性五杆机构单元质量矩阵与刚度矩阵以及弹性动力学模型。
Firstly, the links of the plane five-bar linkage mechanism is simulated by beam element, the mass matrix, stiffness matrix of linkage mechanism and elastic dynamic model of system are established.
该方法基于反射面天线的结构分析，利用变形反射面单元的节点位移信息得到变形后的反射面的网格模型。
Based on the structural analysis of the reflector antenna, a mesh model of the distorted reflector is obtained through the node displacement of elements of the distorted reflector.
计算了外荷载作用下各索单元轴力及节点位移的变化趋势。
Under the loads every calbe unit strength of axle and node displacement's variation tendencies are computed.
在力学分析的基础上，确定了平面壳体单元的刚度矩阵，并根据载荷情况求出节点位移。
On the basis of mechanical analysis, the rigidity matrix of flat shell element has been determined and the displacement of joint has been found out according to the situation of loading.
结果建立了用于计算机辅助设计的镍钛记忆合金牵引器有限元模型，可以预测一定形状的牵引器在变形过程中(各时段)其本身结构中各节点、单元的受力、位移情况。
Results the finite element model of NTMA tractor for CAD was set up, which could predict the strength and displacement of every node and element of its own structure in the course of deforming.
特殊裂纹尖端单节点二次单元包括近裂纹尖端位移近似级数展开第二项。
Special crack-tip SNQE includes the second term of the asymptotic series expansion of the displacement fields near the crack-tip.
然后，用NEWMARK直接积分法进行求解，得到各节点和单元的位移、应力的时程解。
Then, use the direct integral calculus method of NEWMARK to solve solution, and get each node and element's displacement and stress solution vs. time.
该法将虚位移原理推广应用于有限单元的节点，从而得到用以描述局部电磁力分布的等效节点力。
The distribution of local magnetic force is described with an equivalent node force, which is derived from an extended application of virtual work principle to FEM node.
无单元法采用基于滑动最小二乘近似的位移插值形式，节点布置变得非常自由。
Basing on the moving least-squares approximation, the node distribution in EFM is very free.
本文用正弦级数与多项式迭加作为位移函数。把有限条单元的端部角点视为节点，并把它们的位移作为未知待定参数。
The selected displacement functions of the finite strip method suggested in this paber art functions iterated by sine series and polynomial.
本文用正弦级数与多项式迭加作为位移函数。把有限条单元的端部角点视为节点，并把它们的位移作为未知待定参数。
The selected displacement functions of the finite strip method suggested in this paber art functions iterated by sine series and polynomial.
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