论文部分内容阅读
张茂祥(辽宁省水利水电勘测设计院):隐式算法的优点是精度高,时段Δτ_i可以取得很大,缺点是每算一步,总刚度矩阵要重新形成。若用三角分解法求解,每一步都要重新分解,显式算法的优点是把初应变转换成节点荷载向量就可求解,就一步求解来说,显式法远比隐式法省事。笔者认为,最好的办法是把两者结合起来,采用隐式算法的高精度应变增量递推算式,进行显式逐次逼近求解。
Zhang Maoxiang (Liaoning Provincial Institute of Water Conservancy and Hydroelectricity Survey and Design): The advantage of the implicit algorithm is its high accuracy, and the time period Δτ_i can be made large. The disadvantage is that the total stiffness matrix needs to be re-formed every step of the way. If you use the trigonometric decomposition method, each step must be re-decomposed. The advantage of the explicit algorithm is that it can be solved by converting the initial strain to the nodal load vector. For one-step solution, the explicit method is far more convenient than the implicit method. The author believes that the best way is to combine the two, using the implicit algorithm of high-precision strain incremental recursive equations for explicit successive approximation solution.