| 一般位置直线段实长及倾角讲解方法的探讨 |
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| 引用本文： | 胡少兴,张爱武,刘静华,王运巧.一般位置直线段实长及倾角讲解方法的探讨[J].中国科技信息,2011(16):179-180. |
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| 作者姓名： | 胡少兴 张爱武 刘静华 王运巧 |
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| 作者单位： | 1. 北京航空航天大学机械工程及自动化学院,北京,100191
2. 首都师范大学三维信息获取与应用教育部重点实验室,北京,100037 |
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| 摘 要： | 从观察日常生活中诸多部件或零件开始,引出一般位置直线实长及其对投影面倾角求解的必要性,给出由投影求出一般位置直线的实长及其对投影面倾角及直线与投影轴夹角的方法,总结实长、倾角和夹角的求解规律。而后通过几个典型习题的作图过程分析,加深学生对定理的理解。几轮讲述表明：采用该种形式学生不仅能够快速掌握直角三角形法,而且也能激发学生学习工程制图的兴趣。
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| 关 键 词： | 一般位置直线 直角三角形法 实长 倾角 夹角 |
A novel instruction way for solving general line's length and its obliquity angle between projection planes |
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| HU Shaoxing,ZHANG Aiwu,LIU Jinghua,WANG Yunqiao.A novel instruction way for solving general line's length and its obliquity angle between projection planes[J].CHINA SCIENCE AND TECHNOLOGY INFORMATION,2011(16):179-180. |
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| Authors: | HU Shaoxing ZHANG Aiwu LIU Jinghua WANG Yunqiao |
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| Institution: | HU Shaoxing1 ZHANG Aiwu2 LIU Jinghua1 WANG Yunqiao1 1.School of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China,2.Ministry of Education Key Laboratory of 3D Information Acquisitionand Application,Capital Normal University,Beijing 100037 |
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| Abstract: | Basing on numerous observation of many mechanical parts and components,the importance of solving general line's length and its obliquity angle between projection planes is discussed.A novel method for solving general line's length and its angles between projection planes and projection axle is proposed.A generalized method for solving space line's length and its angles between projection planes and axles is also given.Author's teaching experiments indicate that this method can not only make students underst... |
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| Keywords: | General location line Right triangle method Length Obliquity Angle |
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