Dynamics of Cracked Composite Shafts

The dynamics of cracked rotors has been the study for the last three decades. However, considering the importance in the practical fields, the vibration characteristics of cracked rotors are still under active investigation. It needs more attention, particularly with the emerging of new materials such as composites for shafts. The present study aims at the analysis of the cracked composite shafts. The composite shaft has been modelled based on first order shear deformation theory using finite element method with shell elements. Different materials such as, boron-epoxy, carbon-epoxy and graphite-epoxy have been tried for various stacking sequences. The influences of crack parameters, fibre orientation (stacking sequences) and material properties on the vibration characteristics of composite shafts have been studied.

[1]  S. Singh,et al.  COMPOSITE SHAFT ROTORDYNAMIC ANALYSIS USING A LAYERWISE THEORY , 1996 .

[2]  H. L. Wettergren,et al.  THE INFLUENCE OF IMPERFECTIONS ON THE EIGENFREQUENCIES OF A ROTATING COMPOSITE SHAFT , 1997 .

[3]  R. Salzar.  Design considerations for rotating laminated metal-matrix-composite shafts , 1999 .

[4]  T. Chondros,et al.  Analytical Methods in Rotor Dynamics , 1983 .

[5]  Joon W. Lim,et al.  Optimal Sizing of Composite Power Transmission Shafting , 1986 .

[6]  Jörg Wauer,et al.  On the Dynamics of Cracked Rotors: A Literature Survey , 1990 .

[7]  J. H. Griffin,et al.  Sensitivity Of Bonded And Composite Beams , 1994 .

[8]  W. Ostachowicz,et al.  Modelling and vibration analysis of a cantilever composite beam with a transverse open crack , 1995 .

[9]  R. Goldman,et al.  THIN-WALLED LAMINATED COMPOSITE CYLINDRICAL TUBES: PART II - BENDING ANALYSIS. , 1987 .

[10]  R. Gasch,et al.  A Survey Of The Dynamic Behaviour Of A Simple Rotating Shaft With A Transverse Crack , 1993 .

[11]  P. M. Calderale,et al.  Design of composite material drive shafts for vehicular application , 1989 .

[12]  Andrew D. Dimarogonas,et al.  Vibration of cracked structures: A state of the art review , 1996 .

[13]  H. Abramovich,et al.  Free vibrations of non-symmetric cross-ply laminated composite beams , 1994 .

[14]  N. Ganesan,et al.  DYNAMIC RESPONSE OF NON-UNIFORM COMPOSITE BEAMS , 1997 .

[15]  Dimitris L. Karabalis,et al.  Static, dynamic and stability analysis of structures composed of tapered beams , 1983 .

[16]  Kshitij Gupta,et al.  DAMPING MEASUREMENTS IN FIBER REINFORCED COMPOSITE ROTORS , 1998 .