大学物理 ›› 2020, Vol. 39 ›› Issue (04): 13-15.doi: 10.16854 / j.cnki.1000-0712.190232

• 教学讨论 • 上一篇    下一篇

三线摆量纲求解及思考

师维刚,闫田田   

  1. 1. 西安科技大学理学院力学系,陕西西安 710054;2. 西京学院外国语学院,陕西西安 710199
  • 收稿日期:2019-05-18 修回日期:2019-08-16 出版日期:2020-04-20 发布日期:2020-04-20
  • 作者简介:师维刚(1988—),男,陕西西安人,西安科技大学理学院力学工程师,硕士,主要从事大学力学教学及材料强度及应用研究.
  • 基金资助:
    西安科技大学“教学方法与教学手段改革”专题项目(ZX16086);西安科技大学教育教学改革与研究项目(JG16061)资助

Dimensional solution and consideration of three-line pendulum

SHI Wei-gang1,YAN Tian-tian2   

  1. 1. College of Science,Xi'an University of Science and Technology,Xi'an,Shaanxi 710054,China;2. College of Foreign Language,Xijing University,Xi'an,Shaanxi 710199,China
  • Received:2019-05-18 Revised:2019-08-16 Online:2020-04-20 Published:2020-04-20

摘要:

以三线摆转动惯量的量纲分析法求解为例,对比了一般量纲求解与考虑物理量作用形式后修正的量纲求解结果,阐述了在应用量纲求解过程中应该思考的内容.

关键词: 量纲, 量纲分析法, 三线摆

Abstract:

Dimensional analysis is a very important content in college physics teaching,but there are still some big deviations in the process of teaching at present. For this reason,taking the dimensional analysis method of rotational inertia of three-line pendulum as an example,this paper compares the results of general dimension solution with the revised after considering the action form of physical quantities,and expounds the contents that should be considered in the process of applying dimension solution.

Key words: dimension, dimensional analysis method, three-line pendulum