【摘要】 对现有主要的雨淞覆冰模型进行了分析研究 ,发现在预测同一气象条件下的覆冰荷载时出现较大差别。在分析冻雨降水产生覆冰的物理过程后 ,提出了一个相对简单的覆冰预测模型 ,并将此模型的预测结果与其他复杂模型的预测结果进行了比较 ,发现简单模型的预测结果比较满意。更多还原

【Abstract】 The existing widely used models of power transmission line icing in freezing precipitation are conceptually evaluated,and it is found that none of the model is both correct and complete in predicting design glaze ice loads. A simple model that can predict ice accretion in freezing precipitation based on the precipitation rate, wind speed, and the medium volume drop diameter is proposed. The ice loads predicted from this model are compared with those from other models, it shows that the simple model is as good as or better than those calculated by the detailed ice accretion computer models.更多还原