应力法和刚度法是判别土层液化的两种重要方法。
Stress and stiffness methods are two important ones used to identify liquefaction of soil.
实际计算表明，这个方法比变刚度法有更大的适用性。
Through calculations it is found that this method is more applicable than the variable stiffness method.
在结构自由振动分析中，动力刚度法是一种精确算法。
The dynamic stiffness method is exact for structural free vibration analysis.
采用复刚度法对某型直升机救生绞车支架进行表面阻尼处理的分析。
The complex stiffness method is adopted to carry out the analysis of surface damping treatment for the support of life winch of a certain typed helicopter.
本文采用直接刚度法得到刚度矩阵，用聚缩质量模型得到质量矩阵。
In this paper, the stiffness matrix has been obtained by the direct stiffness method, and the mass matrix, by the condensation mass model.
对交错钢桁架结构的侧移分析，采用连续化的数学模型和侧向抗剪刚度法。
The analysis of sidesways of staggered steel truss structure is discussed. The mathematical model of an equivalent continum is proposed and solved by the lateral shear rigidity method.
非线性分析的方法，除采用一般的变刚度法之外，还采用了改进的BFGS法。
In the methods of nonlinear analysis, along with the normal variable stiffness methods, the improved BFGS method is used.
借助于等效弯曲刚度法和遗传算法，建立了一种复合材料加筋板铺层顺序优化设计算法。
A stacking sequence optimization design approach of composite stiffened panel was built up based on equivalent bending stiffness method and Genetic Algorithms (GA).
本文介绍动刚度法在多盘转子系统中的应用，导出了有弹性支承边界条件的动刚度公式。
The dynamic rigidity method applied to the multi-disk rotating systems is presented in this paper. The formula of dynamic rigidity to the boundary conditions with flexible support is derived.
利用综合刚度法对处在过渡状态的单元刚度进行修正。从而避免了对时间步长的精确细分。
The stiffness of the elements in transition state is modified by the synthetical stiffness method and the calculation can thus be relieved from the precise division of the time steps.
本文把缩减弯曲刚度法推广应用于具有不同拉压模数的层板，并且提出了一种求解具有不同拉压模数的层板问题的新的近似方法——二次近似法。
The reduced bending stiffness method is extended to laminates with different moduli in tension and compression, and a new approximate method-twice-approximate method is presented in this paper.
基于修正的拉格朗日坐标描述法，推导了空间纤绳单元的大位移刚度矩阵。
In this paper, the lap displacement stiffness matrix of the space cable is derived bac on the updated Total Lagrangian Formulation.
结合面法向刚度大小的参数对纵向振动模态的影响比对弯曲、扭振模态的影响显著；
The parameters reflecting normal stiffness have more obvious effects on extensional vibration mode than those on flexural mode and torsion mode.
本文采用变刚度的矩阵位移法分析无粘结预应力混凝土网格梁的加载全过程。
This paper presents a matrix structural analysis of variable stiffness on the complete loading history of prestressed concrete grids with unbonded tendons.
但运用该法如何求地基刚度的计算却不多见，故本文简要地列出我们推导的算式，以供参考与探讨。
But no calculation has ever been given to find the foundation rigidity by this method, and therefore this paper presents our way of calculation for reference and discussion.
基于“挠度法”，对节点刚度进行了测试。根据测试结果，分析了影响节点刚性的各种因素。
Tested the joint stiffness based on "deflection method", and analyzed the factors that affect joint stiffness according to the test results.
应用加权余量法推导出单元刚度矩阵和单元载荷矩阵。
The element stiffness and load matrices are derived by Galerkin's weighted residual method.
同时，用有限元法对支承机匣刚度进行了计算。
Furthermore, the supporting shell stiffness is calculated by the Finite Element method.
列式法求解切线刚度矩阵来考虑几何非线性。
For geometrical nonlinearity, Updated Lagrangian formulations are adopted to derive the tangent stiffness matrix.
本文采用三维弹塑性增量变塑性刚度有限元法计算地下洞室围岩稳定。
In this paper, the elastoplastic incremental finite element method with variable plastic stiffness is used to analyse the surrounding rock stability of underground openings.
分析了结构运动方程，并采用缩聚法建立结构总侧移刚度。
The whole stiffness matrix of structural system is derived by condensation approach.
用有限元法对半承载式客车车身强度、刚度进行了分析，用电测量技术对有限元模型进行了验证。
The strength and rigidity of bus body are analyzed, with finite element method and the finite element modeling is validated using the electric measure technique.
针对软化结构的负刚度问题，提出了一种多维虚加弹簧法。
The multi-assumed-spring method is developed to solve the negative stiffness problem of softening structures.
给出了包括位移函数、刚度矩阵和荷载矩阵在内的理论分析过程，从而建立了半解析单元法。
Regular functions are set up and semi-analytical element method is constituted. Displacement functions, stiffness matrices and load matrices are presented in details.
用有限元法对客车车身的强度、刚度进行了分析，用电测量技术对有限元模型进行了验证。
The article USES infinite element method to analyze the intensity and rigidity of bus body, and USES electrical measurement technique to testify infinite element model.
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.
本文探讨了刚度导数法用于含裂纹铆接加筋板应力强度因子计算的问题。
This paper deals with the application of the stiffness derivation method to calculating stress intensity factor of cracked panel with riveted stiffeners.
以土层分层、支撑位置及抗弯刚度变化处等为结点对围护墙体进行单元划分，按地基系数法考虑开挖面下被动土体横向抗力。
In this paper, the retaining wall is divided into finite elements according to the layers of soil, rigidity change of retaining wall, elevations of bracing and so on.
以土层分层、支撑位置及抗弯刚度变化处等为结点对围护墙体进行单元划分，按地基系数法考虑开挖面下被动土体横向抗力。
In this paper, the retaining wall is divided into finite elements according to the layers of soil, rigidity change of retaining wall, elevations of bracing and so on.
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