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# 第六章 - PowerPoint PPT Presentation

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§6-1 刚体绕定轴的转动微分方程

1: 已知: ，求 .

3 ：已知： ，滑动摩擦系数 ，

4 ：已知 求： .

§6-2 刚体对轴的转动惯量

1. 简单形状物体的转动惯量计算

(1)均质细直杆对一端的转动惯量

（2）均质薄圆环对中心轴的转动惯量

（3）均质圆板对中心轴的转动惯量

2. 回转半径（惯性半径）

3．平行轴定理

1 ：均质细直杆，已知 .

（1）均质圆盘对盘心轴的

（2）均质细直杆对一端的

（3）均质细直杆对中心轴

12-10： 已知杆长为 质量为 ，圆盘半径为 ，

4．组合法

12 ：已知： ，

5．实验法