... in transverse kinetic energy losses thanks to the rudder overcomes the increase in viscous losses in the complete propulsion system. freight & logistics services simulation rudder optimum propeller diameter kinetic energy flux relation viscous loss diameter full scale propeller diameter...

... geometry revolution efficiency ship condition load fluctuation fluid dynamics calculation model scale wake field propeller full scale reservoir simulation fluctuation blade load fluctuation water performance transient blade load determination Transient blade load determination in behind...

... This paper presents the results of measurements of unsteady propeller shaft forces of a contra-rotating propeller (CRP) operating behind a ship in both model and full scales. Further, unsteady propeller shaft forces were calculated by a lifting surface theory and compared with the results...

... applied pitch reduction. The performance of the system was predicted on the basis of the model tests and monitored during prototype trials, mainly with regard to spindle torque characteristics. The results of the model and full scales measurements are reported and analyzed. In addition, the propeller...

...) instrumented the links and propeller blades to make stress measurements while actually breaking ice. This paper briefly discusses the structural failures, the failure analysis, the design changes, full scale trial instrumentation, stress measurements, and computerized analysis of stresses along with fatigue...