유한요소법을 이용한 계단 형상 디스크의 면내 고유진동 해석 = In-plane Natural Vibration Analysis of a Stepped Disk by Using the Finite Element Method

다국어 초록 (Multilingual Abstract)

We analyze the in-plane natural vibration of a stepped disk by the FEM using 1-dimensional annular plate element of which the elementary mass matrix and stiffness matrix are derived, respectively, from the virtual work by effective forces and the virtual strain energy by using the static deformation modes obtained from an integration of the differential equilibrium equations of the annular plate element as interpolation functions. The in-plane natural vibration characteristics of a full disk of two-step thickness are analysed. By comparing its results with the results obtained by utilizing 2-dimensional 8-node quadrilateral plane elements and cyclic symmetry of the disk, the efficiency and accuracy of the 1-dimensional annular plate element are verified.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 환상 평판 요소
• 3. 디스크의 운동방정식
• 4. 2단 충만 디스크의 고유진동 해석
• 5. 결론
• 참고문헌