高湿热地区常出现降雨和晨间凝露现象,使得输电线路复合绝缘子表面较长时间存在细小水珠。外施电场存在时,水珠三介质交界点处电场强烈畸变,可造成复合绝缘子硅橡胶材料表面电晕放电和憎水性降低进而导致老化加剧,严重时可引起沿面闪络。本研究基于有限元多物理场仿真软件建立了三维模型,采用有限元方法和控制变量法仿真研究了水平背景电场下硅橡胶表面离散水珠对电场分布的影响以及水珠体积、水珠个数、水珠间距、水珠静态接触角等参数对电场畸变程度的影响。此外,通过实际水珠试验解释了水珠在交流电压下形变引起的电晕放电变化过程 ...
王敩青 +5 more
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XuanHuGPT: parameter-efficient fine-tuning of large language model in the field of traditional Chinese medicine. [PDF]
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