Engineering Transactions, 42, 1-2, pp. 85-105, 1994

The Method of Elimination of Vibrations and Forces Excited by Unbalanced Rotary Machines with Inaccesible Rotor

J. Michalczyk
Stanisław Staszic Academy od Mining And Metallurgy, Kraków

G. Cieplok
Stanisław Staszic Academy od Mining And Metallurgy, Kraków

Possibilities of application of the method of synchronous elimination to the reduction of vibrations and forces in unbalanced rotary machines with inaccessible axes were considered in this paper. The conditions were formulated, which have to be satisfied by the system of inertia vibrators to achieve a stable solution of zero motion of the system in a stationary state. Theoretical considerations have been supported by numerical simulation of motion of the system: rotary machine - off-axial synchronous eliminator, and by experiments. The algorithm of optimization of the real system has been proposed.

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I.I. BLECHMAN, What can vibration do, Science, Moscow 1988.

I.I. BLECHMAN, Synchronization of dynamic systems, Science, Moscow 1971.

T. MAJEWSKI, Self-balance of the rotor supported elastically in two directions, The­oretical and Applied Mech., 16, I, 1978.

J. MICHALCZYK, Off-axial synchronous elimination of vibration and forces in unbalanced rotary machines, Theoretical and Applied Mech., 3, 2, 1993.

J. MICHALCZYK, Synchronous eliminator, Patent Claim P-297 703/1993.

J. MICHALCZYK, G. CIEPLOK, Generalized problem of synchronous elimination, [in:] Machine Vibration, Springer-Verlag Ltd, London 1994.

A. FESCE, A. THEARLE, Automatic balancers, Machine Design, no 9, 10, 11, 1950.