利用有限杆元法，提出开洞核芯筒结构动力特性分析的数值方法。
A numerical method is then proposed by applying the method of finite member element for analysing dynamic characteristic of the structure with perforated core walls.
根据位移变分原理，建立有限杆元模型，对薄壁杆进行侧向稳定分析。
The present study is focused on establishing a finite member element model, based on energ.
多垂直杆元模型是目前最为常用的一种用于剪力墙结构非线性分析的宏观模型。
Multi vertical line element model is the most widely used model in the nonlinear analysis of shear wall structures.
根据势能驻值原理 ，提出在横向荷载作用下薄壁杆件稳定分析的样条有限杆元法。
The displacement variational principle was used to develop the spline finite member element method for buckling analysis of thin walled members with shear lag effect.
结构元素包括杆元、平面梁元、空间梁元、平面三角板元、平面矩形板元和弯曲矩形板元等。
Structural elements contain bar, plane beam, space beam, triangular and rectangular plates with membrane stresses, rectangular plate element with bending deformations.
本文在T．L．坐标下，利用能量原理，同时导出了空间杆元精确的割线刚度矩阵和切线刚度矩阵显式。
In this paper, the tangent stiffness matrices and the secant stiffness matrices of space trusses are derived with the energy principle in the Total Lagrangian coordinates.
值得指出的是，在求解索原长这一施工成型的前提条件时，本文首次将其按索元来处理，而不是按直线杆元。
Otherwise, the unelongated length of prestressed calbe is solved for the first time in catenary cable description but not in bar's.
作者推导了具有转动弹性连接的杆单元刚度矩阵和荷载转移矩阵，其中考虑了横向剪切效应。通常的两端铰接、两端刚接或一端铰接、一端刚接的杆元刚度矩阵只是作者所推导的刚度阵的一些特例。
In this paper, the stiffness matrix and the loading transfer matrix of frame element with turn elastic connections is deduced, the cross shear effect has been taken into consideration simultaneously.
应用有限元法对辽河滩海油田大斜度定向井抽油杆柱受力进行了三维计算。
Using finite element analysis method, three-dimensional calculation is conducted for force summing on rod in high-inclination well of Liaohe tidal zone oilfield.
以某下承式刚性吊杆系杆拱桥为实例，利用空间有限元程序对其空间稳定性进行分析。
Taking a through bridge with rigid suspender and tie-arch for example, the space stability is analyzed by means of finite element program.
本文采用三个边界元模型对巷道底板上锚杆的不同布置形式对防治底鼓的效果进行了模拟研究。
In this paper, three boundary element models were adopted to simulate the preventive effect of different floor bolt layout on the floor heave.
从能量泛函出发，通过引入高阶动态位移模式，导出了杆、梁、框架结构动态有限元列式，建立了杆梁动态有限单元。
Based on energy functionals and with the inclusion of high order dynamic displacement modes, the finite dynamic element formulation for bar and beam is developed.
由二阶理论建立了梁杆结构分析的精确几何非线性有限元增量平衡方程，并利用精确有限元方法对一些典型结构进行了稳定性分析。
Accurate geometry! Non linear finite element increment equilibrium equation is set up by two orders theory. Typical structure stability is analyzed with this accurate finite element method.
本文用解析法和有限元法分析了连续多支承压杆的稳定性及其近似解与精确解。
This paper analyzes the stability of continuous and multi-support compressed pillars using analysing method and finite element method.
利用杆件结构有限元动力分析计算，并通过模型梁试验，建立起简支梁在附加荷载作用下振动特性与破损模态之间的关系。
Through beam structure finite unit dynamic analysis and experiment of RC model beam, we build the relationship between beam bridge attached load vibration characteristics and damaged model.
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.
它可以应用一般平面杆系的电算程序计算，其精度已被空间有限元电算程序的计算结果所验证。
It may be calculated by the plan element computer program, and its precision is proved by the results of space computer program.
为了给现场锚杆支护参数的设计提供理论依据，采用有限元软件ANSYS对该轨道巷锚杆的支护参数进行研究。
Bolt parameters of the track tunnel were simulated by using the finite software ANSYS in order to provide a theoretical basis for designing support parameters.
在有限元空间梁元模型的基础上，导出了考虑杆件约束扭转的薄壁梁元分析力学模型。
Based on the space beam element analytical model, a new thin-walled beam element model considering the restrained torsion was derived in this paper.
本文用有限元方法分析了一定初缺陷杆受轴向冲击的弹塑性动态屈曲。
Using the finite element method, the dynamic buckling of a bar with finite initial imperfection under axial impact is analyzed in this paper.
根据已有实验方案分别建立了离散杆和射弹高速冲击飞机壁板结构的有限元模型，利用显式动力有限元计算程序进行了冲击损伤仿真。
The finite-element simulation models of the discrete rod and the projectile impacting on the aircraft panel structure at high velocity are established according to some experiment projects.
将有限元与薄壁杆件弯扭理论两种计算方法进行了分析对比，提出了模型化及边界处理的方法。
This paper carries out the comparison between FEM and the theory of thin-walled bar's bending and torsion and gives the methods for modelling and boundary processing.
空间协同分析时，采用超元法（每个单元由多根杆组成）计算等效柱的侧移刚度矩阵，自由度成倍减少。
The method is applied to calculate lateral stiffness matrix in space cooperating analysis and the the degree of freedom can be greatly decreased.
本文根据非线性有限元理论研究讨论基于压杆失稳的张拉整体结构极限承载能力。
According to nonlinear finite element analysis, the ultimate load-carrying capacity of tensegrity system is discussed based on the buckling of struts.
并通过非线性有限元模拟分析，给出了细长钢筋混凝土压杆的极限承载力表达式以及由此确定的双控设计法。
The simulated ultimate load formula and double-control design method of slender eccentrically compressed reinforced concrete member were proposed by nonlinear finite element simulation analysis.
研究了弹性结点有限元方法，详细导出了弹性结点杆件的单元刚度矩阵和常见荷载列阵。
This paper introduces a finite element method of the plane trusses with elastic node. The element stiffness matrix and loading matrix are calculated in detail.
并应用有限元法对变幅杆进行了模态分析，得到了共振频率和位移节点等重要参数。
Normal modes in the pole and important characteristic parameters such as resonance frequency and position of the displacement node are obtained using the finite element method.
本文提出了一个用于消除空间杆梁结构有限元模型中的无刚度“奇点”的元素及相应的刚度矩阵计算公式。
In this paper, a new type of elements and the stiffness matrix have been developed, which can be used to eliminate the singularity in the finite element model such as space truss and frame.
本文提出了一个用于消除空间杆梁结构有限元模型中的无刚度“奇点”的元素及相应的刚度矩阵计算公式。
In this paper, a new type of elements and the stiffness matrix have been developed, which can be used to eliminate the singularity in the finite element model such as space truss and frame.
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