- 现代机械设计手册·第1卷(第二版)
- 秦大同 谢里阳主编
- 9字
- 2020-08-28 03:26:13
第5章 常用力学公式
5.1 理论力学基本公式
5.1.1 静力学基本公式
表1-5-1 平面汇交力系、平面任意力系和空间力系的合成、简化及平衡条件
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000387.jpg?sign=1739220171-mWbhSFfdSSNWkhfk5bQr6OPSHglWJVV8-0-ab5cf124950b475bed93d307b0373ae7)
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000399.jpg?sign=1739220171-CyvDO7GbXLd52dC0gD0yY2zQvWNasvwh-0-61b9c7b41bd5541f47d70d435543ff4b)
表1-5-2 力矩及力偶矩的计算
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000405.jpg?sign=1739220171-wOC0k9NRuz8I8ShCpyUYTFLyVNXRvX9x-0-5992daf8f6ea08dde67476eab3a17770)
5.1.2 运动学基本公式
表1-5-3 运动学基本公式
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000411.jpg?sign=1739220171-BhM5KPq0NJ3NqoIegV7Bs7IaOsfSyqUg-0-51f998fad3f90a863b6250edcad558cd)
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000417.jpg?sign=1739220171-WWxVExlDjbtqcCFlqvj7N2bkp2d0C3pz-0-9c1e8008d82f02bfb0e4b241929aa6f0)
表1-5-4 刚体运动的常用计算式
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000423.jpg?sign=1739220171-uRPyrq3wbbCRZhMcz1t6ciZyoFjR4zEG-0-f617435df1becae7f5d677ac81a8e06e)
5.1.3 动力学基本公式
表1-5-5 动力学基本公式
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000429.jpg?sign=1739220171-Oog0uHIOA3J1TIJVFXqKvdyQn1ZHNtUh-0-cef59aa9d1e32e799e2d00cf37aa2261)
5.1.4 常用转动惯量公式
(1)机械传动中转动惯量的换算(表1-5-6)
表1-5-6 机械传动中转动惯量的换算
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000435.jpg?sign=1739220171-lSf3gGIF2HF1b7NiUfXhBb4qiQVy9Oyq-0-c62a4b4398a9538b644c03a24f2078b1)
(2)一般物体旋转时的转动惯量(表1-5-7)
表1-5-7 一般物体旋转时的转动惯量
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000441.jpg?sign=1739220171-FrgoiGnmDALmr70hyj1XUqI6sJG9M9kP-0-3a69ed4219a49ed01163fdd2af5bea26)
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000447.jpg?sign=1739220171-REKBxufkQ3g4WJOUm8w117BSb7ZGYbaK-0-9c8c5bbb93821389ca3783be045ebe19)
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000453.jpg?sign=1739220171-zkEvZBBXKPspClon4kwgdy5ZJ9BDMa0R-0-74b92644c688449e12f34be02862442b)
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000465.jpg?sign=1739220171-r8Kjg6Pk1FO6As0HFXQ3PQrMbT590AhQ-0-b793c49036aa3baaa12ad5f4cfd6f615)
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000471.jpg?sign=1739220171-isBXf2ghF68nnXJGMOOPGN1R77w5iMlJ-0-038330ab45c442a01079b1dc269a5056)
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000477.jpg?sign=1739220171-doEZR6V391jakdeSsBdDI6OOjRj1uXto-0-de8e59ce7198c07a835b3b344d7e28a1)
(3)常用旋转体的转动惯量(表1-5-8)
表1-5-8 常用旋转体的转动惯量
![](https://epubservercos.yuewen.com/F3E36B/16499763104627206/epubprivate/OEBPS/Images/image000483.jpg?sign=1739220171-ix01FuHwHPAkzYaJpjeevaZWfUbaP51p-0-43ef2574a6edc5fdf38f62eed55f47ea)
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。