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Structural topology determining method and device suitable for extra-high voltage long-cantilever power transmission tower
The invention discloses a structural topology determining method and device suitable for an extra-high voltage long-cantilever power transmission tower. The method comprises the steps that structuralparameter data of the power transmission tower is obtained, strain energy vectors and joint displacement vectors of rods of integral structures are calculated, and then the strain energy and the largest joint displacement of the structures are obtained; the rods in the structure are removed one by one, the strain energy vectors and the joint displacement vectors of the rods of damaged structures are calculated, and the strain energy and the largest joint displacement of the damaged structures are obtained; a participation coefficient matrix is introduced, the strain energy and the largest joint displacement including the integral structures and the damaged structures form the vectors, and the importance coefficient vector of each removed rod is calculated; the importance coefficient vectors with the strain energy and the largest joint displacement changed greatly are selected, the importance coefficient vector with the largest importance coefficient value is selected from the importance coefficient vectors, and then the robustness of the power transmission tower structure is calculated according to the importance coefficient vector; and if the robustness reaches a preset robustnessthreshold, the current power transmission tower structure is determined as the final power transmission tower structure.
本发明公开一种适用于特高压长悬臂输电塔的结构拓扑确定方法和装置，方法包括：获取输电塔结构参数数据，计算完整结构的杆件应变能向量和节点位移向量，进而求取结构的应变能和最大节点位移；逐根移除结构中的杆件，计算损伤结构的杆件应变能向量和节点位移向量，求出损伤结构的应变能和最大节点位移；引入参与系数矩阵，将包含完整结构和损伤结构的应变能和最大节点位移组成向量，计算每根移除杆件的重要性系数向量；选取损伤结构应变能变化程度以及最大节点位移变化程度较大的重要性系数向量，从中选择综合重要性系数值最大的重要性系数向量，继而根据该重要性系数向量，计算输电塔结构的鲁棒性；若满足预设的鲁棒性阈值，则将当前输电塔结构确定为最终输电塔结构。
Structural topology determining method and device suitable for extra-high voltage long-cantilever power transmission tower
The invention discloses a structural topology determining method and device suitable for an extra-high voltage long-cantilever power transmission tower. The method comprises the steps that structuralparameter data of the power transmission tower is obtained, strain energy vectors and joint displacement vectors of rods of integral structures are calculated, and then the strain energy and the largest joint displacement of the structures are obtained; the rods in the structure are removed one by one, the strain energy vectors and the joint displacement vectors of the rods of damaged structures are calculated, and the strain energy and the largest joint displacement of the damaged structures are obtained; a participation coefficient matrix is introduced, the strain energy and the largest joint displacement including the integral structures and the damaged structures form the vectors, and the importance coefficient vector of each removed rod is calculated; the importance coefficient vectors with the strain energy and the largest joint displacement changed greatly are selected, the importance coefficient vector with the largest importance coefficient value is selected from the importance coefficient vectors, and then the robustness of the power transmission tower structure is calculated according to the importance coefficient vector; and if the robustness reaches a preset robustnessthreshold, the current power transmission tower structure is determined as the final power transmission tower structure.
本发明公开一种适用于特高压长悬臂输电塔的结构拓扑确定方法和装置，方法包括：获取输电塔结构参数数据，计算完整结构的杆件应变能向量和节点位移向量，进而求取结构的应变能和最大节点位移；逐根移除结构中的杆件，计算损伤结构的杆件应变能向量和节点位移向量，求出损伤结构的应变能和最大节点位移；引入参与系数矩阵，将包含完整结构和损伤结构的应变能和最大节点位移组成向量，计算每根移除杆件的重要性系数向量；选取损伤结构应变能变化程度以及最大节点位移变化程度较大的重要性系数向量，从中选择综合重要性系数值最大的重要性系数向量，继而根据该重要性系数向量，计算输电塔结构的鲁棒性；若满足预设的鲁棒性阈值，则将当前输电塔结构确定为最终输电塔结构。
Structural topology determining method and device suitable for extra-high voltage long-cantilever power transmission tower
一种适用于特高压长悬臂输电塔的结构拓扑确定方法和装置
YU LIANG (author) / ZHU YAPENG (author) / CAI JIANGUO (author) / TAO QINGSONG (author) / ZHANG XIAOHUI (author) / LONG HAIBO (author) / TAN LEI (author) / ZHANG WEI (author) / NING SHUAIPENG (author) / LI BUHUI (author)
2020-05-19
Patent
Electronic Resource
Chinese
IPC:
E04H
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