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Keywords: torsion
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2012, 134(1): 011007.
Published Online: December 28, 2011
... achievable at supercritical speeds relative to the system torsional and lateral modes. However, for counter-rotating rotors, automatic balancing occurs at both subcritical and supercritical speeds relative to the foundation torsional mode. In this investigation, a dimensionless parameter study conducted...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. December 2011, 133(6): 061002.
Published Online: September 9, 2011
...Ryan J. Monroe; Steven W. Shaw; Alan H. Haddow; Bruce K. Geist Centrifugal pendulum vibration absorbers are used for reducing engine-order torsional vibrations in rotating machines. The most common configuration of these devices utilizes a bifilar suspension in which the absorber mass is suspended...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2011, 133(4): 041008.
Published Online: April 8, 2011
... for radial, bending, and torsion motions of a flexible drill string and stick-slip interactions between the drill string and an outer shell. Qualitative changes in the system motions are studied with respect to the rotation speed of the drill string and the friction coefficient between the drill string...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 2009, 131(5): 051012.
Published Online: September 25, 2009
...Yukio Ishida; Tsuyoshi Inoue; Tomohiko Fukami; Motohiko Ueda Centrifugal pendulum vibration absorbers (CPVA) have been used for a long time as a method to suppress torsional vibration. Recently, roller type CPVA, that has a similar characteristic but simpler structure, have been investigated...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. April 2008, 130(2): 021014.
Published Online: March 21, 2008
...M. Moallem This paper presents a wave-based modeling and control approach for suppressing torsional vibrations of an elastic shaft driven by a motor at one end and an inertial load at the other end. A two-port network model representing the dynamics of torsional displacements is obtained starting...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. December 2005, 127(6): 519–529.
Published Online: April 18, 2005
...C. Mei In this paper, wave vibration analysis of axially loaded bending-torsion coupled composite beam structures is presented. It includes the effects of axial force, shear deformation, and rotary inertia; namely, it is for an axially loaded composite Timoshenko beam. The study also includes...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Vib. Acoust. January 2004, 126(1): 163–167.
Published Online: February 26, 2004
...Yong Chen Presently, the “negative sequence current method” is widely used in field-testing to determine torsional vibration characteristics of steam turbine generator rotor systems. The natural frequencies of lower modes of vibration can be determined effectively in this way, but higher modes...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. January 2003, 125(1): 80–87.
Published Online: January 6, 2003
...A. S. Alsuwaiyan; Steven W. Shaw, Professor, Fellow ASME In this paper we consider the steady-state response of a rotor fitted with a system of nearly identical torsional vibration absorbers. The absorbers are of the centrifugal pendulum type, which provide an effective mean of attenuating...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. January 2003, 125(1): 46–52.
Published Online: January 6, 2003
... of freedom which are radial displacement, rotation of the section considered, bending along the tangential direction and torsion of the string. They include the effects of bending and torsion, the whirling motion of the drillstring as well as friction phenomena occurring between the drillstring and the well...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. April 2001, 123(2): 175–180.
Published Online: September 1, 2000
.... Thomson, W. (Lord Kelvin), and Tait, P. G., 1883, Treatise of Natural Philosophy , Cambridge University Press, London. de Saint-Venant, A., 1855, “De la Torsion des Prismes, avec des conside´rations sur leur Flexion,” Me´moires des Savants E´trangers . Green , A. E. , 1936...