怀德学院6刚体简单运动

《怀德学院6刚体简单运动》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、§6－1刚体的平动§6－2刚体的定轴转动§6－3转动刚体内各点的速度和加速度§6－4轮系的传动比§6－5速度与加速度的矢量表示第6章刚体的简单运动Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-201

2、1AsposePtyLtd.本章作业（Page）：第6章刚体的简单运动Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.§6－1刚体的平动Evaluationonly.

3、CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.[例]由于研究对象是刚体,所以运动中要考虑其本身形状和尺寸大小运动学是指刚体的平行移动和转动一、刚体的平行移动(平动)基本运动Evaluationo

4、nly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.运动学由A,B两点的运动方程式:而AB在运动中方向和大小始终不变，即（一）刚体平动的定义:刚体运动，其体内任意直线始终与其初始位置平行。Ev

5、aluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.运动学（二）刚体平动的特点：①各点轨迹形状完全相同且相互平行。②在同一瞬时各点具有相同的速度、加速度。注意：平动直线平动曲

6、线平动平动≠直线运动Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.§6－2刚体的定轴转动Evaluationonly.CreatedwithAspose.Slide

7、sfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.运动学（一）刚体定轴转动的定义刚体运动时，如果体内或其扩展部分有一直线始终保持不动，则这种运动称为刚体绕固定轴转动。固定不动的直线称为转轴。Evaluationonly.CreatedwithA

8、spose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLt