.... positive pitch angle wind velocity pitch angle different wind velocity variation tip-speed ratio darrieus-type turbine pitch variation rotation turbine torque coefficient renewable energy torque wind energy efficiency power coefficient hiraki coefficient darrieus turbine low-speed wind...

... upstream oil & gas interaction liquefaction kpa engineering equation of state loading experiment effective stress pore water pressure rotation fluid modeling vertical effective stress constitutive model principal stress rotation soil response current model principal stress...

... morozov critical load axial tension minimum allowable bend radius allowable bend radius pipe strength ashraf external pressure pe 80 rotation rtp shankar material nonlinearity thermoplastic pipe material characteristic upstream oil & gas loading path reference point bend...

... loads, i.e. the wind, the wave and other external loads. As the offshore wind turbine is a kind of dynamic-sensitive structure, dynamic loads including the wind turbulences, waves, rotational frequency of rotor (1P) and the blade passing frequency (3P for 3 bladed turbine), need to be considered...

... are to verify flow mode, to calculate a hydrodynamic power loss, to find out an influence of waves. Water ring arises about the pontoon during rotation. Power loss is proportional to second power of rotational velocity. The ring can drift to outside because of water acceleration and aside due to waves. KEY...

... Euler's angles, the angle of a cross sectional radius relative to the principal normal of the centroidal line, and the angle rotated from any artificial unstrained position. The relative merits of each of the three means are presented. Finally, the cross sectional deformation is described by a radial...

... rotor. A rotor w~th a large unbalanced mass wh~ch is appl~ed an osc~llat~ng mot~on, can be kept in rotat~on like a hula-hoop. A power generator is connected to the unbalanced rotor by an over dr~ve gear. In th~s paper, to clarify the fundamental character~st~cs of the new wave-energy converter s~mple...