Auto-Balancing of Rotors with a Rigid Bearing

• Autorzy: Sperling L. , Ryzhik B. , Duckstein H. , Grobel K. H.
• Konferencja: German-Polish Workshop on Dynamical Problems in Mechanical Systems (8 ; 31.08-5.09.2003 ; Schmochtitz, Germany)
• Języki publikacji: EN

Abstrakty

EN

The paper presents a study of automatic balancing of rotors with a fixed point, for example rotors with a rigid bearing. In such rotor systems permitting only tilting oscillations, similarly to the case of the Laval rotor, the full compensation of unbalance is possible by balancing in only one plane. We consider a rotor equipped with an auto-balancing device consisting of a circular track with two moving balls. The investigations include derivation and analysis of existence and stability conditions for synchronous motions, an analysis of non-synchronous biharmonic motions near the critical speed, and a discussion on the influence of the gyroscopic terms, particularly a new type of Sommerfeld effect. The results are confirmed and complemented by computer simulations.

Słowa kluczowe

EN

auto-balancig; rigid rotor; tilting vibrations; Sommerfeld effect

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2004
• Tom: Vol. 28, No. 2
• Strony: 45--64
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Sperling L.

• Otto-von-Guericke-Universität Magdeburg, Germany

autor

Ryzhik B.

• Otto-von-Guericke-Universität Magdeburg, Germany

autor

Duckstein H.

• Otto-von-Guericke-Universität Magdeburg, Germany

autor

Grobel K. H.

• Otto-von-Guericke-Universität Magdeburg, Institute of Mechanics, Germany

Bibliografia

• 1. Blekhman, I.I., 2000, Vibrational mechanics, World scientific, Singapore, New Jersey, London, Hong Kong.
• 2. Huang, W.-Y., Chao, C.-P., Kang, J.-R., Sung, C.-K., 2002, The application of ball-type balancers for radial vibration reduction of high speed optic drives, J. of Sound and Vibration, 250, 3, 415-430.
• 3. Majewski, T., Switek, W., 1999, Optimization of the system for automatic compensating of dynamic forces, OPTI 99, Proceedings, Vol. 5, 375-384.
• 4. Rajalingham, C., Rakheja, S., 1998, Whirl suppression in hand-held power tool rotors using guided rolling balancers, J. of Sound and Vibration, 217, 3, 453-466.
• 5. Ryzhik, B., Amer, T., Duckstein, H., Sperling, L., 2001, Zum Sommerfeldeffekt beim selbsttätigen Auswuchten in einer Ebene, Technische Mechanik, 21, 4, 297-312.
• 6. Ryzhik, B., Sperling, L., Duckstein, H., 2004, Non-Synchronous Motions Near Critical Speeds in a Single-Plane Auto-Balancing Device, Technische Mechanik, 24, 1, 25-36.
• 7. Sperling, L.; Ryzhik, B., Duckstein, H., 2001, Two-plane automatic balancing, Machine Dynamics Problems, 25, 3/4, 153-167.
• 8. Sperling, L., Ryzhik, B., Duckstein, H., 2004, Single-Plane Auto-Balancing of Rigid Rotors, Technische Mechanik, 24, 1, 1-24.
• 9. Thearle, E., 1932, A new type of dynamic-balancing machine, Trans. of ASME, 54, 12, 131-141.