The vulnerability risk level of lightning disaster has ambiguity and nonlinearity,and existing methods have not fully considered it,resulting in obvious defects in the weight setting process and affecting accurate zoning.To this end,an optimiza-tion design method for lightning disaster vulnerability risk zoning under nonlinear interference is proposed.Based on previous detection data,calculate the annual average lightning strike ground density and analyze the distribution characteristics of light-ning activity to overcome the ambiguity of lightning disaster vulnerability risk levels.Construct vulnerability risk indicators and input each indicator and annual average lightning strike ground density to construct a lightning disaster vulnerability risk predic-tion function.To ensure the accuracy of zoning,an adaptive particle swarm optimization algorithm is adopted to optimize the weight of indicator risk factors through particle optimization,overcome nonlinear effects,determine the weight of level divi-sion,and achieve level risk zoning.The results show that the proposed method's zoning results are consistent with the actual results,and the weight adaptability effect is good.The overall average error rate is about 0.768％,and the zoning accuracy is high,which is feasible.
关键词
矩阵等级法/雷电灾害/风险值计算/易损性/风险区划方法
Key words
matrix hierarchy method/lightning disaster/risk value calculation/vulnerability/risk zoning method
维普
万方数据