| "等效离心势能"和"有效势能"及其应用 |
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| 引用本文： | 唐启祥. "等效离心势能"和"有效势能"及其应用[J]. 文山师范高等专科学校学报, 2006, 19(1): 81-83 |
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| 作者姓名： | 唐启祥 |
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| 作者单位： | 文山师范高等专科学校,数理系,云南,文山,663000 |
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| 摘 要： | 拟从质点在有心保守力场中运动的能量（包含机械能和角动量）守恒入手,将质点动能分解成沿径向和切向两个分量之和,再与引力势能的形式比较,引出“等效离心势能”,再与引力势能相合并,引出“有效势能”概念．最后,应用“有效势能”来解决几个实例。
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| 关 键 词： | 等效离心势能 有效势能 有心保守力场 |
| 文章编号： | 1671-3303（2006）01-0081-03 |
| 收稿时间： | 2005-07-26 |
| 修稿时间： | 2005-07-26 |
The Concepts and Application of "Equivalent Centrifugal Potential Energy" and "Valid Potential Energy" |
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| TANG Qi-xiang. The Concepts and Application of "Equivalent Centrifugal Potential Energy" and "Valid Potential Energy"[J]. Journal of Wenshan Teachers College, 2006, 19(1): 81-83 |
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| Authors: | TANG Qi-xiang |
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| Affiliation: | Department of Mathematics and Physics, Wenshan Teachers College, Wenshan, Yunnan 663000, China |
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| Abstract: | In this paper,starting with mechanical energy conservation and angle momentum conservation of a mass point in central conservative force field,kinetic energy of a mass point is divided into two parts including both radial kinetic energy and tangent kinetic energy.After comparing its expression with gravitational potential energy's,the concept "Equivalent Centrifugal Potential Energy"is brought forward.Furthermore,combining the "Equivalent Centrifugal Potential Energy" and the gravitational potential energy,the concept "Valid Potential Energy" is put forward.Finally,"Valid Potential Energy" is applied to solving several problems. |
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| Keywords: | Equivalent Centrifugal Potential Energy Valid Potential Energy central conservative force field |
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