Balancing and Unbalance Identifications of Multi-Support Shafts and Rotors
The paper presents the theoretical foundations of a method to eliminate the effects of induction forces originating from the unbalancing of multi-support flexible rotors or transmission shafts. The method provides an adequate control of the rotor or shaft mass distribution and it includes the technical viability to carry out changes in this mass distribution. Also, a proposal is given as to how unbalancing in rotor or transmission shafts can be identified.
References
Z. WALCZYK, Forced vibrations and motion stability of a multi-support turboset rotor, A Doctor's thesis (in Polish), Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Gdańsk 1976.
Z. WALCZYK, Forced vibrations and critical rotational velocities of rotor and transmission shafts, Theor. and Applied Mechanics, a paper submitted to the Editions in 1977.
M. BALDA, Dynamic properties of turboset rotors, Paper for IUTAM. Symposium, Denmark 1974.
R. E. D. BISHOP, G. M. L. GLADWELL, The vibration and balancing of an unbalanced flexible rotor, J. M. B. S., 1, 1959.
M. S. HUNDAL, R. J. HARKER, Balancing of flexible rotors having arbitrary mass and stiffness distribution. Trans. of ASME, 2, 1966.
R. H. BAGLEY, Recent developments in multiplane-multispeed balancing of flexible rotors in the United States, I.U.T.A.M., Symposium, Denmark 1974.
W. KELIENBERGER, Limits in modal balancing of flexible rotors, I.U.T.A.M. Symposium, Denmark 1974.
Indices for the assessment of the state of balancing of rigid rotary bodies, V.D.I. Recommendation No 2060, Draft 4, 1964.
K. FEDERN, Rudiments for systematic elimination of flexional vibrations in rotors, of the V.D.I. Communications, 24. 1957.
Rules for the operating of electric power plants and mains, Central Board of Energy Engineering, Warsaw 1960.
J. KOZEŚNIK, Dynamics of Machinery, Science and Technology Editions, Warsaw 1963.