소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

회전축계의 진동해석을 위한 Hybrid법에 관한 연구

A Hybrid Method for Vibration Analysis of Rotor Systems

  • 양보석 (부산수산대학교, 기계공학과) ;
  • 최원호 (부산수산대학교 대학원)
  • 발행 : 1992.12.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The simplest method which has been used extensively for vibration analysis is the transfer matrix method introduced by Myklestad and was later extended by many researchers. The crude approximation results in considerable error on the predicted natural frequencies and to increase the accuracy the number of elements used in the analysis must be increased. In addition, numerical instability can occur as a result of matrix multiplication. Also the main disadvantage of the finite element method is the large computer memory requirements for complex systems. The new method proposed in this paper combines the transfer matrix and finite dynamic element techniques to form a powerful algorithm for vibration analysis of rotor system. It is shown that the accuracy improves significantly when the transfer matrix for each segment is obtained from finite dynamic element techniques.

키워드

참고문헌

  1. J. of Aero. Sci. A New Method of Calculating Natural Modes of Uncoupled Bending Vibration of Airplane Wings and Other Types of Beams Myklestad,N.O.
  2. J. Appl. Mech. v.12 A General Method for Calculating Critical Speeds of Flexible Rotors Prohl,M.A.
  3. Trans. ASME, J. of Eng. Ind. Modal Response of a Flexible Rotor in Fluid-Film Bearing Lund,J.W.
  4. Trans. of JSME v.51 no.469C The Frontal Transfer Matrix Method as an Efficient Approach to Reanalysis Okada,Y.(et al.)
  5. J. of mechanical Design v.1 no.2 The Riccati Transfer Matrix Method Horner,G.C;Pilkey,W.D.
  6. J. of Sound and Vibration v.134 no.1 Design and Application of a Finite Element package for Modelling Turbomachinery Vibrations Firoozian,R.;Stanway,R.
  7. 한국박용기관학회지 v.14 no.4 동적유한요소법에 의한 보의 비틀림 자유진동해석 양보석;여운동
  8. J. of Sound and Vibration v.58 no.2 Frequency-Dependent Element Matrices for Rotor Dynamics Analysis Yang,B.S.;Pilkey,W.D.;Fergusson,N.J.
  9. Trans. ASME, J. of Eng. for ind. A Finite Element Model for Distributed Parameter Turborotor Systems Ruhl,R.L.;Booker,J.F.
  10. Trans. ASME, J. of Eng. for ind. v.98 The Dynamics of Rotor-Bearing Systems Using Finite Elements Nelson,H.D.;McVaugh,J.M.
  11. 13th ASME Conf. on Mech. Vibration and Noise Accurate Free Vibration Analysis for Rotating Shaft Yang,B.S.;Pilkey,W.D.
  12. Matrix Methods in Elastomechanics Pestel,E.C.;Leckie,F.A.