探究撒克逊碗的下沉: 对简谐振动的修正
收稿日期: 2021-03-04
修回日期: 2021-04-28
网络出版日期: 2021-11-15
基金资助
东南大学教学改革研究与实践项目( 2019-075)
Exploration of the sinking of Saxon bowl: correction of simple harmonic vibration
Received date: 2021-03-04
Revised date: 2021-04-28
Online published: 2021-11-15
王 幸, 黎秋航, 侯吉旋, 陈 乾 . 探究撒克逊碗的下沉: 对简谐振动的修正[J]. 大学物理, 2021 , 40(11) : 80 . DOI: 10.16854 / j.cnki.1000-0712.210095
Starting from the correction of harmonic vibration,theoretical analysis and
experimental exploration on the sixth topic Saxon bowl of IYPT2020 are carried out. This topic
describes a fact that the ancient Saxons used the bowl with holes on bottom to tell the time. Such
a bowl sinking model can be used as a vivid case to enhance students' understanding of simple
harmonic vibration and damped vibration. In this way,the complicated formula derivation is avoided
and the simple equation is obtained. By using computer to solve the differential equation
and doing experi- ments,the feasibility of the theory is proved and the influence of some
factors on the sinking time is studied
Key words: Saxon bowel; simple harmonic vibration; Bernoulli equation; damping term
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