Engineering Transactions, 1, -, pp. 3-10, 1953

O Pewnej Metodzie Obliczania Amplitud Drgań Wymuszonych

W. Fiszdon

Poland

The use of the admittance method for the determination of amplitudes of forced vibrations of deformable elastic systems with internal damping is described. This method enables to take into account the real elastic, inertial and damping characteristics of systems with many degrees of freedom thus giving the possibility of a more accurate calculation of forced amplitudes than in the usually employed methods. An approximate method using previous experience on similar systems is indicated.
This method is particularly suitable for the determination of the best flexibility of the a suspension of a large mass on a flexible finite mass.

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Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).

References

B.C. Cauten The Vibration of Airscrew Blades with Particular Reference to Harmonic Torque Impulses in the Drive, R. a. M. 1738 (1936).

M. A. Biot, Coupled Oscillations of Aircraft Engine Propeller Systemis; Journ. Aeron. Sc, July 1940.

W. J. Duncan, The Admittance Method for Obtaining the Natural Frequencies of Systems, Phil. Mag., Nov. 1941.

W. Fiszdon, D. B. C. Cooper, L. A. Tate, A Practical Method of Estimuting Resonance Frequencies of an Aircraft Engine System, R.A. E. Report No S. M. E. 3293 (1944).

W. Fiszdon, R. P. N. Jones, D.L.Woodcock, Effect of Damping in Different Parts of an Aircraft Structure on Forced Vibrations as Stu-

died on Simplified Systems, R. a. M. 2103 (1945).