The longitudinal, torsional and 2-transverse equations of motion are formulated for the titled problem through application of Hamilton’s Principle. Curvature-torsion conditions under which linear oscillation in a plane can exist are identified. The finite element method with isoparametric elements is used for discretization prior to spectra analysis. Natural frequency calculations over a range of mass transport velocities and cylinder end conditions were carried out for comparison with constant and variable curvature analyses and experiment. These results support the application of the constant curvature, inextensible centerline model for curved cylinder vibration analysis.
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On the Dynamic Analysis of Curved and Twisted Cylinders Transporting Fluids
R. W. Doll,
R. W. Doll
TRW Systems Group, Redondo Beach, Calif.
C. D. Mote, Jr.
Depart. of Mechanical Engineering, University of California, Berkeley, Calif.
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Doll, R. W., and Mote, C. D., Jr. (May 1, 1976). "On the Dynamic Analysis of Curved and Twisted Cylinders Transporting Fluids." ASME. J. Pressure Vessel Technol. May 1976; 98(2): 143–150. https://doi.org/10.1115/1.3454351
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