This report describes part of the experimental activity carried out by CNR-INSEAN under the Work Package 3.2 of EU-FP7 Research Project HyMAR N. 233718. HyMAR (acronym of "High Efficiency Hybrid Drive Trains for Small and Medium Sized Marine Craft") is a project dedicated to study the hydrodynamic of a class of unconventional marine propellers, known as 'self-pitching propellers' (SPP). SPP are characterized by blades that are free to rotate 360° around the bearing axis. Working pitch automatically adapts to vessel speed and incoming flow conditions. SSP can operate both as propellers (power transmitted by engine to screw) and as energy generation devices. The experimental activity carried out by CNR-INSEAN and related in this report consists in conventional and unconventional open water tests on three different models of SPP. Results obtained show the importance of the material chosen for blades and give some hydrodynamic characteristics, providing interesting information about the two possible uses of these new propellers.
Open water tests on three models of "self-pitching propellers" (SPP)
Mancini A;Moriconi A
2012
Abstract
This report describes part of the experimental activity carried out by CNR-INSEAN under the Work Package 3.2 of EU-FP7 Research Project HyMAR N. 233718. HyMAR (acronym of "High Efficiency Hybrid Drive Trains for Small and Medium Sized Marine Craft") is a project dedicated to study the hydrodynamic of a class of unconventional marine propellers, known as 'self-pitching propellers' (SPP). SPP are characterized by blades that are free to rotate 360° around the bearing axis. Working pitch automatically adapts to vessel speed and incoming flow conditions. SSP can operate both as propellers (power transmitted by engine to screw) and as energy generation devices. The experimental activity carried out by CNR-INSEAN and related in this report consists in conventional and unconventional open water tests on three different models of SPP. Results obtained show the importance of the material chosen for blades and give some hydrodynamic characteristics, providing interesting information about the two possible uses of these new propellers.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
