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회전 관성을 고려한 전달행렬법 기반의 Expansion Joint 진동해석
신동호(Shin, Dong-Ho),김상호(Kim, Sang-Ho),윤형호(Yoon, Hyung-Ho),임희곤(Lim, Hee-Gon),오재응(Oh, Jae-Eung),이정윤(Lee, Jung-Youn) 한국소음진동공학회 2011 한국소음진동공학회 논문집 Vol.21 No.7
Simplified formulae for axial and bending natural frequencies of a bellows are developed using an equivalent thin-walled pipe model. The axial and bending stiffness of bellows is determined using lumped transfer matrix method. Transfer matrix method which includes the rotary inertia is used to calculate the natural frequencies for axial and lateral vibration. The result from the simplified formula are verified by those from as experiment result and a finite element analysis. This comparisons show good agreement with the each other.