it derived the rigidity matrix of nonlinear finite element from the point of view of energy and inspected emphatically every small matrix in the rigidity matrix. specially;
从能量的观点导出了非线性有限元的刚度矩阵,着重对其中各子矩阵进行了详细的分析。
on the basis of mechanical analysis, the rigidity matrix of flat shell element has been determined and the displacement of joint has been found out according to the situation of loading.
在力学分析的基础上,确定了平面壳体单元的刚度矩阵,并根据载荷情况求出节点位移。
the rigidity matrix and node force column matrix of the cable element were formulated;
推导了缆索单元刚度矩阵和节点力列阵;
this study seems to indicate that this model has been relatively simple in calculation, and may be a practical method for computing the rigidity matrix of the main frame.
该模型计算较简单,是一种计算主框架刚度矩阵的实用方法。