As the development and infrastructure of deepwater oil gas resources, performance offshore platform is directly related to personnel safety, equipment normal production drilling process. Therefore, hydrodynamic calculation[1] flow response-based control optimization are current hot research topics. Semi-submersible marine platforms widely used in industry due their large deck area, strong wind ...

Abstract This paper focuses on a topic frequently involved in the dynamics of transient phenomena rotary machines driven by an AC induction motor supplied three-phase four-wire electrical system: free response dynamic system mirrored torsional vibrations its rotor. is reducible at single degree freedom system, equivalent spring-mass-damper but as vibratory composed rotor (having moment inertia)...

The angular error of indexing table on machine tool is measured using new developed measuring device. The measuring techniques, which have been reviewed in this paper, are currently available in manufacturing engineering to calibrate the angle measurement. The new developed measuring device using 6 points kinematic concept and employing ball and vee grooves is used to calibrate angle errors of ...