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5 常用力学公式
5.1 运动学、动力学基本公式
运动学基本公式
表1-1-80
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00115002.jpg?sign=1739323051-HkrZgXlTaLZv5fiXkzCW7H0O6nxt7zCe-0-f4cd4ef206b9b6ab94438fedd7cf5c2d)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00116001.jpg?sign=1739323051-BVpdb6wqtDiiuIYTge98U1p5jzSb7Mhl-0-6a364e0fbb710bde0ba74bef8f95bc42)
动力学基本公式
表1-1-81
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00116002.jpg?sign=1739323051-twEHRORdLQrODbJtGpnrx2aH6YXYaJVr-0-b6113eec3bbad609914c5715be296b6d)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00117001.jpg?sign=1739323051-3P1lmZ4bg5rx9s4COjaVhFqw40OyUnmV-0-6b771b689e27e1493f5d17aa72b7cf7f)
转动惯量
表1-1-82 机械传动中转动惯量的换算
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00118001.jpg?sign=1739323051-Ck8ap38Z2q5VwyPVVs2DHRxe0I7jAiCX-0-f4a29f60936a3c50250bfb272d982159)
一般物体旋转时的转动惯量
J——对某回转轴的转动惯量;A——图形面积;V——图形体积;m——质量;——惯性半径;O——重心(个别重心符号另有注明);
——重心坐标
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00119003.jpg?sign=1739323051-1ExB1tZV2GTwAjOvrujAlA2fBHwJvEfX-0-eadf8738f0a53ece3d6583fda8fa4fbf)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00120001.jpg?sign=1739323051-FdRO93cmETH8AqqEaMSUSW9loorleKgz-0-fc00c3b9169ad6d733e356662612268c)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00121001.jpg?sign=1739323051-6xI3N6DnAOk8crVVxMFDvptnyBrGHOys-0-15f2cb9cf25b40733f1236f15b44c3fa)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00122001.jpg?sign=1739323051-827UCGPasqJlEmAJwvELCDikuP4lKvyS-0-141cf7a80348dceafcb56e7063d2167b)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00123001.jpg?sign=1739323051-VtRcI4DVyiscQ8td2tptawg86GmgsYhN-0-8273a67b437c02b1f1bcb928b7a8d41d)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00124001.jpg?sign=1739323051-OmqWWqWfZ6IaQTISvB5iEUh7q0z9d8jA-0-d17e2ad503e90bbb8059286db95a9981)
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00125001.jpg?sign=1739323051-OtWiwfxGia0h07ST0MTxAdLMSFN2Ltxw-0-b39cbd3c54f9a346b109f9ece166c023)
常用旋转体的转动惯量
表1-1-84
![](https://epubservercos.yuewen.com/2456E1/16499785105920306/epubprivate/OEBPS/Images/img00126001.jpg?sign=1739323051-xaQlSlBWB5nxQTsuIsMCI4GGYLRDlOva-0-b15086944861eadd3cf080e058f87b0d)
注:表中部分零件只给出主要尺寸,计算出的转动惯量是近似的。