Dynamic instability of composite-material drive shaft subject to fluctuating torque and/or rotational speed

Bert, Charles W.; Kim, Chun-Do

doi:10.1080/02681119508806199

Cited by 9 publications

(3 citation statements)

References 10 publications

(8 reference statements)

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“…The results compare well with Zinberg's rotor [1]. In another study, Bert and Kim [5] have analysed the dynamic instability of a composite drive shaft subjected to fluctuating torque and/or rotational speed by using various thin shell theories. The rotational effects include centrifugal and Coriolis forces.…”

Section: Introductionsupporting

confidence: 63%

Free Vibration Analysis of a Rotating Composite Shaft Using the p‐Version of the Finite Element Method

Boukhalfa

Hadjoui

Cherif

2008

International Journal of Rotating Machinery

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Recommended by Agnes MuszynskaThis paper is concerned with the dynamic behavior of the rotating composite shaft on rigid bearings. A p-version, hierarchical finite element is employed to define the model. A theoretical study allows the establishment of the kinetic energy and the strain energy of the shaft, necessary to the result of the equations of motion. In this model the transverse shear deformation, rotary inertia and gyroscopic effects, as well as the coupling effect due to the lamination of composite layers have been incorporated. A hierarchical beam finite element with six degrees of freedom per node is developed and used to find the natural frequencies of a rotating composite shaft. A program is elaborate for the calculation of the eigenfrequencies and critical speeds of a rotating composite shaft. To verify the present model, the critical speeds of composite shaft systems are compared with those available in the literature. The efficiency and accuracy of the methods employed are discussed.

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Section: Introductionsupporting

confidence: 63%

Free Vibration Analysis of a Rotating Composite Shaft Using the p‐Version of the Finite Element Method

Boukhalfa

Hadjoui

Cherif

2008

International Journal of Rotating Machinery

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“…Singh and Gupta 6 further studied the effect of shear-normal coupling on rotor natural frequencies and modal damping. Bert and Kim 7 have formulated the problem of determination of critical speeds of a composite shaft, including the effect of bending-twisting coupling. The two theories, namely, the equivalent modulus beam theory and layerwise beam theory, were compared by Singh and Gupta.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis of shafts of composite materials

Alwan

Gupta

Sekhar

et al. 2010

Journal of Reinforced Plastics and Composites

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The objective of this study is to analyze the dynamic behavior of composite shafts with particular interest on estimation of damping. The composite shafts have been chosen as potential candidates for the replacement of conventional metallic shafts in many applications. This study analyzed the dynamic behavior of different materials such as glass/epoxy, carbon/epoxy, and boron/epoxy at different speeds. Detailed dynamic studies on the effect of different materials, stacking sequences on the unbalance responses, and eigenfrequencies are required, particularly with respect to the damping present in the composite material. Different methodologies such as logarithmic decay curve, half-power method, and hysteresis loop method using force sensors have been used for determining the damping of the composite shafts. Composite tube-shafts and solid shafts have been modeled and analyzed using ANSYS. A parametric study has been carried out to analyze the effect of stacking sequence on eigenfrequencies of composite tube-shafts. This study aims to have a comprehensive view of numerical and experimental analyses of composite shafts for eigenvalues, damping estimation, and unbalance response. Eigenfrequencies of composite tube-shafts and solid shafts were estimated through modal testing and are compared with analytical and FEM results. In this study, torsional vibration analysis for composite solid shafts has also been carried out using the rotational laser vibrometer.

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“…They investigated the critical speeds of composite shafts including the effect of bending-twisting coupling. Bert and Kim [4] studied the dynamic instability of drive shafts subjected to fluctuating torque and/or rotational speed by means of various thin shell theories. The theories included the combined effects of torsion and rotation.…”

Section: Introductionmentioning

confidence: 99%

Generalized Differential Quadrature Method for Free Vibration Analysis of a Rotating Composite Thin‐Walled Shaft

Zhong

Gao

Ren

2019

Mathematical Problems in Engineering

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A refined variational asymptotic method (VAM) and Hamilton’s principle were used to establish the free vibration differential equations of a rotating composite thin-walled shaft with circumferential uniform stiffness (CUS) configuration. The generalized differential quadrature method (GDQM) was adopted to discretize and solve the governing equations. The accuracy and efficiency of the GDQM were validated in analyzing the frequency of a rotating composite shaft. Compared to the available results in literature, the computational results by the GDQM are accurate. In addition, effects of boundary conditions, rotating speed, ply angle, ratio of radius over thickness, and ratio of length over radius on the frequency characteristics were also investigated.

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Dynamic instability of composite-material drive shaft subject to fluctuating torque and/or rotational speed

Cited by 9 publications

References 10 publications

Free Vibration Analysis of a Rotating Composite Shaft Using the p‐Version of the Finite Element Method

Free Vibration Analysis of a Rotating Composite Shaft Using the p‐Version of the Finite Element Method

Dynamic analysis of shafts of composite materials

Generalized Differential Quadrature Method for Free Vibration Analysis of a Rotating Composite Thin‐Walled Shaft

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