| 机械设计基础教学中值得商榷的几个问题 |
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| 引用本文： | 鲁怀敏.机械设计基础教学中值得商榷的几个问题[J].沙洲职业工学院学报,2005(2). |
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| 作者姓名： | 鲁怀敏 |
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| 作者单位： | 沙洲职业工学院 江苏 |
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| 摘 要： | 对机械设计基础课程教学中存在的几个理论问题提出不同见解,主要包括:瞬心概念中关于两构件上任意重合点的相对速度方向与瞬心和此点连线关系的推导;螺旋副的效率问题;受横向载荷的普通螺栓联接预紧力的计算问题。
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| 关 键 词： | 机械设计基础 瞬心 螺旋副效率 螺栓预紧力 |
Several Problems in the Teaching of Mechanical Design Foundation |
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| LU Huai-min.Several Problems in the Teaching of Mechanical Design Foundation[J].Journal of Shazhou Polytechnical Institute of Technology,2005(2). |
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| Authors: | LU Huai-min |
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| Abstract: | Different opinions are proposed here about some theoretical problems in the teaching of mechanical design foundation, respectively: deduction of relationship between the direction of relative velocity of superposition points and joint line of instantaneous rotary center and the points; efficiency of screw; calculating the pretightening force of common bolt connection. Furthermore, some suggestions about the teaching methods are recommended. |
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| Keywords: | mechanical design foundation instantaneous rotary center efficiency of screw pretightening force of the bolts |
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