tangential stiffness matrix

基本解释

At first, the tangential stiffness matrix of rigid body element is derived under global coordinate system and the incremental equilibrium equation is established.
文中首先推导了多刚体离散元法在总体坐标下的切线刚度阵，建立多刚体离散元法的增量平衡方程；
The explicit tangential stiffness matrix is deduced for proposed fiber beam with Total Lagrange description, and the incremental equilibrium equations are also established.
并根据全拉格朗日描述方法，推导了纤维梁单元的切线刚度矩阵，建立了纤维梁单元的增量求解方程。
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In order to consider the geometrically nonlinear behavior of suspension bridge structure, the tangential stiffness matrix of the assembled element and that of the spatial bar element were formulated.
根据等参单元的大变形理论，推导了组合单元的切线刚度矩阵，以适应悬索桥的几何非线性分析。