tangent stiffness matrix meaning in English
切线刚度矩阵
Examples
- Tangent stiffness matrix
切线刚度矩阵 - In the analysis , a cfst arch ( single tube ) is first divided into a finite number of straight beam elements . according to the virtual work principle and the modified newton - raphson iteration method the tangent stiffness matrix considering double nonlinear properties is established . with regard to the non - equilibrium forces , the material nonlinear property along the height of the section and the length of the element is considered and the computation accuracy is improved as a result
本文首先将拱肋划分为一系列的直梁单元，运用虚功原理和修正newton - raphan数值迭代算法的基本原理准确推导了拱肋直梁单元的非线性切线刚度矩阵；在不平衡力方面考虑了沿截面高度和单元长度方向材料非线性的发展过程，提高了计算精度；再根据得到的切线刚度矩阵采用荷载增量步内修正newton - raphan迭代的增量迭代法进行了求解。 - Based on the virtual work increment equation of updated lagrangian formulation , tangent stiffness matrix of spatial beam / truss element is obtained . according to base assumptions and catenary equation of cable , the iterative formulations of tangent stiffness matrix and nodal force of the spatial two - node catenary cable element are put forward . therefore the entire geometrical non - linear finite element theory for the analysis of suspension bridges is established
本文的研究工作和取得的主要成果有: 1 .将大旋转小应变空间梁(杆)单元与两节点空间悬链线索单元结合起来,形成了一套完整的适合于悬索桥结构分析的几何非线性有限元计算方法。