杆系有限元法用于基坑支护简单、实用。
The method of one dimension FEM used in foundation pit supporting is simple and applied.
平面桁架是一种自然离散化的杆系结构。
阐明杆系机构运动路径极值点的数学特征。
The mathematical property of the limit point in kinematic path is clarified.
本文提出了一种杆系机动分析的计算机方法。
This paper gives a computer method of analysis for the geometrical stability of structures.
介绍了一种平面杆系结构自由振动的解析解法。
The analytic method for the free vibration of plane frame structure is presented.
基于能量准则，讨论了铰接杆系机构的稳定性问题。
Structural stability conditions for pin-bar mechanism system were investigated on the basis of energy criterion.
本文针对复杂杆系结构提出一种超级有限条的分析方法。
A super finite strip method for complex rod-systems has doveloped in this paper.
这个结果在传统的三维杆系有限元分析中是不可能得到的。
By traditional 3d finite element analysis, it is impossible to obtain these results.
提出移动荷载作用下杆系结构内力包络图的精确计算方法。
An exact method for computation of envelopes of various internal forces of skeletal structures under moving loads is developed.
研究了随机杆系结构在随机荷载作用下的随机优化设计问题。
The stochastic optimization method for skeletal structures with random parameters under random loads action is studied.
该方案包括整体优化策略和空间杆系结构优化设计等两个方面。
The scheme includes the two aspects: the study on the whole optimization and the space trusses optimization.
在杆系结构可靠性分析中，求取临界失效模式是一个主要课题。
In the structural reliability analysis of frames, it is a primary subject to identify the critical failure modes.
TPM手控器属于杆系结构，设计原则为重量轻、强度精度高。
The TPM is truss system structure, the design principle is light weight and high dynamic accuracy.
本文引入了杆系结构的回弹反耦联系统和回弹反耦联方程的概念。
The conceptions of springback anti-coupled systems and equations of the structures of bar systems are introduced in this paper.
以柔度法原理为基础对一空间杆系结构的损伤识别作了详细分析。
By the principles of compliance method, there are detailed analysis of the damage identification of a Structure in space.
该方法能直接应用到大型复杂杆系结构的几何非线性问题的求解中。
This method can be applied to the solution of geometrically nonlinear problems for complicated structures.
用该算法求解杆系结构可不必确定基本结构，且能获得稳定的数值解。
It is possible in this new algorithm to deal with space frames without firstly delineating the basic determinate structure and the ensuing numerical computation is rather stable.
本文进一步对铰接杆系结构撤除杆件后的几何稳定性问题进行了讨论。
Furthermore, this thesis carries out some discussions about the geometrical stability of the pin-bar assemblies after removing some bars.
汽车转向杆系的设计对轮胎的磨损和车辆的操纵稳定性都有一定的影响。
The design of steering tie rods affects tire wear and handling performance of passenger cars.
本文采用杆系有限元方法，研究了桥墩结构在地震和冰荷载作用下的响应问题。
In this paper, the responses of bridge structure to earthquake and ice loads are studied.
因此，采用三维杆系有限元模型对隔震结构进行整体分析具有重要的现实意义。
So it is practically important to carry on the study on the whole structure of 3d FEM model.
推导了铰接杆系结构切线刚度矩阵较为简便的计算生成过程，便于在编程中实现。
Numerical calculation process to obtain the tangent stiffness matrix of structure is deduced and geometric stability of different types of structures are analyzed.
利用自应力矩阵的特性，提出并证明了一种快速识别杆系结构中“必需杆”的方法。
By utilizing the properties of self-stress matrix, a technique for quickly distinguishing "necessary bars" is proposed.
本文阐述了平衡吊的基本原理，并对其平衡条件及杆系的平衡方法进行了分析和研究。
The basic principle of balance hoist was detailed and the balance conditions and methods of rod system were investigated and analyzed.
采用平面杆系单元进行结构的承载力检算，采用3D实体单元进行梁体荷载响应模拟。
Plane linkage element is used to calculate bearing capacity of the structure, and 3D solid element is used to simulate response of the beam to load.
结合平面杆系结构分析的实例，探讨了面向对象方法在建筑结构分析程序设计中的应用。
A practical example of application of the object-oriented method in plane rod system structure is given.
特别对于较复杂的杆系结构的稳定性问题效果尤其明显，丰富了压杆稳定性研究的内容。
This method was particularly obvious for more complex structures, it also could abundant the studying content of member in compression stability.
针对结构动力失稳的判定问题，提出了一种适用于杆系结构动力稳定分析的应力变化率法。
Considering the judgment of dynamic instability of truss structures, a stress rate method for dynamic instability analysis of truss structures was proposed.
文中提出了利用考虑地基土水平基床系数修正的杆系有限元法进行加固后深基坑变形计算。
This paper puts forward a deformation calculation method based on the modified horizontal coefficient of subgrade reaction.
文中提出了利用考虑地基土水平基床系数修正的杆系有限元法进行加固后深基坑变形计算。
This paper puts forward a deformation calculation method based on the modified horizontal coefficient of subgrade reaction.
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