Задача №37.18
Условие
Твердое тело, подвешенное на упругой проволоке, совершает крутильные колебания под действием внешнего момента mв, причем mвz=m1sinωt+m3sinЗωt, где m1, m3 и ω — постоянные, а z — ось, направленная вдоль проволоки. Момент сил упругости проволоки равен mупр, причем mупрz=-cφ, где c — коэффициент упругости, а φ — угол закручивания. Определить закон вынужденных крутильных колебаний твердого тела, если его момент инерции относительно оси z равен Jz. Силами сопротивления движению пренебречь. Считать, что √(c/Jz)≠ω и √(c/Jz)≠3ω.Решение
☆
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1.1
1.2
1.3
1.4
1.5
2.1
2.2
2.3
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3.1
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4.1
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5.1
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9.1
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10.1
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12.1
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23.1
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24.1
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25.1
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27.1
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28.1
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29.1
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30.1
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31.1
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32.1
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33.1
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34.1
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35.1
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37.1
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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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