Structural optimization to transmission tower based on metamodel
Application of structural optimization to transmission tower is of great significance since the cost of transmission tower structure accounts for 30％ -40％ of the cost of the entire transmission line.In addition, major costs such as material, transportation, erection, and maintenance are directly proportional to structural mass.In the tower structural optimization, the optimization of the tower size is an important aspect.In this paper, base widths of tower、slope and the panel lengths are considered as design variables to reduce the structural mass of an existing tower under the strength and stability constraints for the tower structure members.By APDL parametric programming language, a parameterized finite element model for calculating internal forces of the tower structure members is established.In this model, the base widths, bottle width and panel lengths are treated as variables.The forces of each structure member are calculated by Ansys.And then, on these bases, section size of each member is selected in order to content Technical Regulation of Design for Tower and Pole Structures of Overhead Transmission Line DL/T5154-2002.The structural analysis and member design procedure is treated as a black-box function for full-scale optimization, which is performed using the mode-pursuing sampling method (MPS).The example of the 500 KV tangent tower 5A-ZB32 verify that the full-scale optimization problems of the computational overhead black-box function can be solved by the mode-pursuing sampling method (MPS), and satisfactory results in the calculation speed and solution quality have been achieved.
Optimization design Transmission tower Base width the panel length Mode-pursuing sampling
Liqiang An Peng Zhang
School of Energy Power and Mechanical Engineering,North China Electric Power University,071003,Baoding,China
国际会议
黄山
英文
1-9
2012-06-18（万方平台首次上网日期，不代表论文的发表时间）