Reconstruction and analysis of Zhan’s sand clock in the 14th century

Y. H. Chen, Marco Ceccarelli, Hong Sen Yan

研究成果: Chapter

摘要

Zhan’s five wheels sand clock was a significant design of time-keeping device in China during the 14th century. With a sand wheel as the power source and four pairs of gears as the transmission system, it was able to indicate time by its hand on the clock dial. Although this invention is not preserved, an ancient literature provides a clear record of its mechanical structure of gear transmission with engineering data. This paper introduces the background of Zhan’s sand clock and presents a translation version of those descriptions of this device. Moreover, a mechanical analysis is made based on the engineering data provided in the original literature, and all relevant factors and mechanical design parameters about its power source are listed and discussed. Finally, the feasibility of Zhan’s sand clock is verified through a reconstruction design and prototype testing.

原文English
主出版物標題History of Mechanism and Machine Science
發行者Springer
頁面123-133
頁數11
DOIs
出版狀態Published - 2019

出版系列

名字History of Mechanism and Machine Science
37
ISSN(列印)1875-3442
ISSN(電子)1875-3426

All Science Journal Classification (ASJC) codes

  • History
  • Mechanical Engineering

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