2026-03-11T14:11:33Z https://kanazawa-u.repo.nii.ac.jp/oai

oai:kanazawa-u.repo.nii.ac.jp:00011724 2024-05-20T04:26:31Z 934:941:1024:1029

部分円筒殻の自由振動 Free Vibration of Cylindrical Shell Iwata, Yoshio 13497 90115212 Kobori, Yoichi 112464 岩田, 佳雄 363 90115212 90115212 小堀, 与一 18352 Several vibrations of a thin cylindrical shell were analyzed by the finite element method. By the former reports it has been showed that both the stiffenss matrix and the mass matrix of the cylindrical shell elements were the matrices which consisted of the complicated expressions. This paper showed that the stiffness matrix and the mass matrix were simply expressed and were easily evaluated. By using of the method based on this paper the natural frequencies and the natural modes of the cantilevered cylindrical shell, which are needed on the estimation of turbin blade vibrations in industry, were derived. These calculations properly agreed with the results of the experiments. The relations between the natural frequencies and the natural modes and the size of the cylindrical shell were studied, and the three characteristics of vibrations of the cylindrical shell were showed as follows ; (1) Natural frequencies and natural modes of the cylindrical shell depend on the generatin­g-line-ratio, the central-angle and the thickness-ratio. (2) Natural frequencies and natural modes of the cantilevered cylindrical shell remarkably differ from those of the plate. (3) In case of vibrations of the cantilevered cylindrical shell the node-lines tend to occur in the direction of the generating-line. departmental bulletin paper 金沢大学工学部 = Faculty of Technology Kanazawa University 1979-03-25 VoR application/pdf 金沢大学工学部紀要 = Memoirs of the Faculty of Technology Kanazawa University 1 12 45 54 AN00044309 0022-832X https://kanazawa-u.repo.nii.ac.jp/record/11724/files/AN00044309-12-1-45.pdf https://doi.org/10.24517/00011711 http://hdl.handle.net/2297/25551 https://kanazawa-u.repo.nii.ac.jp/records/11724 jpn