自动门
自动门:风阻力矩计算
发布时间:2013/2/4
风阻力矩Md按公式(3.39)计算。
    假设旋转门旋转时风向不变,则展箱和门扇与风向的夹角在由Oo变到900的过程中.
风阻力也随着变化,其等效阻力矩Mde按式(3.40)计算。
    当,‘.- 900时,Md—Mdm冀,确定电机功率和零件疲劳计算时,按旋转门正常工作状态
下的计算风压Pd.计算Mdm…当计算机械零件结构强度、刚度和稳定性,验算传动装置
过载能力时,取P以计算Mdrnx o
    (3)惯性阻力矩M:。
    三/四翼旋转门总惯性阻力矩是其旋转部分惯性阻力矩和机构传动部件惯性阻力矩两
部分之和,按式(3.45)计算。
    MI=凡f|,+ Mu2  (N.m)
式中M_.-旋转门旋转部分惯性阻力矩,N.m,
    M:-作用在电机轴上机构传动部分惯性阻力矩,N.ma
    1)旋转门旋转部分惯性阻力矩Mii按式(3.46)计算。
    2)作用在电机轴上的机构传动部分惯性阻力矩M暑:按式(3.47)计算。
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