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Torsional Vibration Analysis of Multiple Steped Gear System Using Transfer Matrix Method

  • 이형우 (부산대학교 대학원 생산기계공학과) ;
  • 박노길 (부산대학교 기계공학부 기계기술연구소)
  • 발행 : 1998.06.01

초록

For analyzing the torsional vibration of a multiple stepped gear system containing a pair of triple gears, a transfer matrix model based on Hibner's branch method is developed and the natural properties of the branched rotor system are calculated with using the $\lambda$-matrix formulation. A Campbell diagram, in which the excitation sources caused by the mass unbalances of the rotors and the transmitted errors of thegearings are considered, shows that, at the neighborhood of the operating speed, there are the four critical speeds amplifying the first mode and the fifth mode. For the surpression of the gear box vibration, two ways are suggested by referring the mode shapes.

키워드

참고문헌

  1. ASME Journal of Applied Mechanics v.12 A General Method for calculating Critical Speed of Flexible Rotors M.A.Prohl
  2. ASME Journal of Engineering for Industry v.96 no.2 Stability and Damped Critianl Speeds of Flexible Rotor in Fluid-Film Beaerings J.W.Lund
  3. ASME Journal of Engineering for Industry Stability and Damped Critical Speeds of Rotor-Bearing Systems P.N.Bansal;R.G.Kirk
  4. ASME Journal of Vibration and Acoustics An Improved Method for stability and Damped Critical Speeds of Rotor-Bearing Systems D.Kim;J.W.David
  5. Dynamics of Rotorbearing System M.J.Goodwin
  6. Rotor Dynamics(2nd edtion) J.S.Rao
  7. Vibration in Rotating Machinery, I Mech E Conference Publication A New Branching Technique for the Static and Dynamic Analysis of Geared System L.D.Mitchell
  8. Ph.D. North Calorina State University An Analysis investication of Geared System Dynamics Containing Spur and Helical Gears N.G.Park
  9. Vibration Analysis of Rotors C.W.Lee