ВХОД | РЕГИСТРАЦИЯ

Задача №20.18

Условие

Углы Эйлера, определяющие положение тела, изменяются по закону (регулярная прецессия) ψ=ψ0+n1t, θ=θ0, φ=φ0+n2t, где ψ0, θ0, φ0 — начальные значения углов, а n1 и n2 — постоянные числа, равные соответствующим угловым скоростям. Определить угловую скорость ω тела, неподвижный и подвижный аксоиды.

Решение





Предыдущая задача №17
Движение тела вокруг неподвижной точки задано при помощи углов Эйлера следующими уравнениями: φ=nt, ψ=π/2+ant, θ=π/3. Определить проекции угловой скорости и углового ускорения тела на неподвижные оси, если a и n — постоянные величины. Указать также то значение параметра a, при котором неподвижным аксоидом тела будет плоскость Oxy.
Следующая задача №19
Барабан записывающего устройства вращается равномерно со скоростью ω0. Радиус барабана r. Самописец соединен с деталью, движущейся по вертикали по закону
y = a sin ω1t.
Найти уравнение кривой, которую запишет перо на бумажной ленте.
Источник: Решебник Мещерского 12 класс
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1.1
1.2
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2.1
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24.1
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28.1
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31.1
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32.1
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33.1
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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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45.3
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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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55.2
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56.7
56.9

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