On Vibration Galvanometers with Unifilar Torsional Control

Research on the Marine Shafting Torsional Vibration with Gears Transmission

Abstract The torsional vibration of marine propulsion shafting has been studied for more than a century. With abundant research achievements and experiences, a systematic approach of vibration calculation has been put forward for ship industrial applications. However, literature review indicates that when processing the gear transmission in the shaft line, the meshing motion has been treated as...

Slow Resonance Ratio Control for Torsional Vibration Suppression

Vibration suppression and disturbance rejection control in torsional system is an important issue in the future motion control. Resonance ratio control is one of the most effective strategies, but the disturbance should be estimated much faster than the resonance frequency. Too fast disturbance observer causes implementation problem. To solve this problem, we propose a novel technique called "s...

Longitudinal Magnetic Field Effect on Torsional Vibration of Carbon Nanotubes

Torsional dynamic analysis of carbon nanotubes under the effect of longitudinal magnetic field is carried out in the present study. Torque effect of an axial magnetic field on a carbon nanotube has been defined using Maxwell’s relation. Nonlocal governing equation and boundary conditions for carbon nanotubes are obtained by using Hamilton’s minimum energy principle. Eringen’s nonlocal stress gr...

Torsional and Bending Vibration Measurement on Rotors Using Laser Technology

Torsional Vibration of Eccentric Building Systems