高二通用技术1.1初识结构.ppt

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1、高二通用技术技术与设计2第一章第一节初识结构Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.古老的板凳Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.榫卯结构Evaluationonly.CreatedwithAspose.

2、Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.构件：事物的各个组成部分架构：事物的主体框架与构造形式Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.

3、Copyright2004-2011AsposePtyLtd.吊车Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.塔吊Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.台灯Evaluationonly.CreatedwithA

4、spose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.1.什么是结构？任何事物，只要存在，就有它自己的结构。结构的定义：结构是指事物各个组成部分之间的有序搭配和排列。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.从力学角度理解结构的本质：结构是可承受一定应力的架构形态，可以抵抗能引

5、起形状和大小改变的力。（本质：承受力、抵抗变形）分析：板凳、吊车和吊绳、蛇皮管台灯…Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.____寺Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.某加油站Evaluationonl

6、y.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.2.为什么是这样的结构？例1Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.例2Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfil

7、e5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.例3为什么要用这种材料？是否易弯曲？弹性？撤去外力？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLt

8、d.不同的结构，具有不同的功能不同的功能，要求不同的结构结构是由需要和物体的功能决定的，即结构是为了承受力和抵抗变形。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright