... torsional vibration circular cylinder asia government upstream oil & gas vibration cylinder system amplitude natural frequency upstream cylinder vibration frequency cylinder downstream cylinder gap ratio regime fiv flow pattern vibration amplitude tandem cylinder vortice torsional...

... sensor shaft integration transverse vibration vibration information displacement rotational speed displacement signal marine transportation eddy current sensor ship propulsion propulsion shaft torsional vibration acceleration sensor propulsion longitudinal vibration displacement...

... vibrations with the increase of the velocity of upper stream V ∞ . The results show that the amplitudes of the bracing vibrations and the torsional vibrations are significantly influenced by the AOA, k h and k α . Moreover, the effects of the adjustments of the three parameters on the occurrence...

... ABSTRACT In the proposed paper the authors will discuss the outcomes of a research activity aimed at assess a Polar Class vessel's shaft line transient torsional vibrations (TTV) using a lumped mass-elastic model. A procedure to assess transient response on a shaft line is developed using...

... stiffness torsional vibration biaxial vibration offshore axial damper cheng axial stress excitation axial vibration resonance fundamental axial period elastic joint chung pipe amplitude metals & mining deflection vertical pipe Proceedings of the Sixth (1996...

... (/lx-) responses, both static and dynamic, to the z-directional impact loadings, are modeled and analyzed by a nonlinear FEM method for a 16-in pipeline. The 3-D responses are compared with 2-D responses. The comparison shows significant torsional vibrations caused by the cross-flow current, especially...