Calculation of the eigenfrequencies for an infinite circular cylinder

무한 원통형 실린더의 고유진동수에 관한 연구

Baik, Kyungmin;Ryue, Jung-Soo;Shin, Ku-Kyun

  • Received : 2015.07.31
  • Accepted : 2015.10.02
  • Published : 2016.01.31


Present study shows three different methods finding the eigenfrequencies of an infinite circular cylinder under free-vibration; Elasticity theory that can be applied to general case, thin-shell theory that can be effectively applied to the cylinders with small thickness, and numerical study using Finite Element Method (FEM). The results obtained from those methods were verified through the cross check among the calculations. Changing the thickness of the cylinder for a fixed outer radius, all the eigenfrequencies below 1 kHz were found and their dependences on the modal index and the thickness were observed.




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Supported by : 국방과학연구소