| 摘 要： | The Great Bell of Yongle cast in the reign of Yongle of the Ming Dynasty is a bell for prayer.By use ofthe finite element method for the calculation of truncated conical shell,natural frequencies and vibrationalmodes of the Yongle Bell have been calculated.Theoretical results are consistent with those obtained frommeasurements of sound.Within the range of calculation,the law of distribution of nodal circles for eachvibrational mode is presented.Through comparison between the Yongle Bell and assumed bells,theinfluences of waist and lip thickness changes on the bell timbre are discussed.The tuning for A_3 and E_3partial tones is achieved by changing the thickness at waist and lip.These partials play a harmonious part inthe bell sound.
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