具有干摩擦阻尼的叶片组振动的理论与实验研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (11): 1306-1314.

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THE THEORITICAL ANALYSIS AND EXPERIMENTAL INVESTIGATION OF VIBRATION ON BLADES WITH DRY FRICTION DAMPING

Ren Yongsheng

Institute of Measurement Technology,Shanxi Mining Instite,Taiyuan,000030;Research Institute of Vibration Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016

Received:1993-06-10 Revised:1993-10-30 Online:1994-11-25 Published:1994-11-25

Abstract

Abstract: The vibration characteristics and dry friction damping effect of shrouded blades are studied bV theoretical analysis and experiments.Anew reducing method on the basis of shroud dry friction nonlinear connection element and fixed interfaee component model synthesis meth-ods is proposed.Dimensionless dry friction damping factor is defined to measure the effect of dry friction damping,Finally,according to designed method, a vibration experiment of shrouded blades is carried out.

Key words: nonlinear vibration, dry friction damping, order-reducing methods, vibrationmeasurement, blades

CLC Number:

Ren Yongsheng. THE THEORITICAL ANALYSIS AND EXPERIMENTAL INVESTIGATION OF VIBRATION ON BLADES WITH DRY FRICTION DAMPING[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(11): 1306-1314.

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THE THEORITICAL ANALYSIS AND EXPERIMENTAL INVESTIGATION OF VIBRATION ON BLADES WITH DRY FRICTION DAMPING

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