Задача №8.35
Условие
Ворот, служащий для подъема породы из наклонного шурфа, состоит из вала радиуса 0,25 м и длины 1,5 м. Вал приводится во вращение при помощи мотора (на рисунке не показан). Определить реакции опор и вращающий момент Mвр мотора, если вес вала равен 0,8 кН, вес груза 4 кН, коэффициент трения между грузом и поверхностью шурфа равен 0,5, угол наклона шурфа к горизонту равен 30° и место схода троса с вала находится на расстоянии 50 см от подшипника B. Вращение вала считать равномерным.Решение
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1.1
1.2
1.3
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2.1
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28.1
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33.1
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35.1
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38.1
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39.1
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42.1
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43.1
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44.1
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46.1
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47.1
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48.1
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49.1
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53.5
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54.1
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