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Proceedings Papers

Paper presented at the SNAME 15th Propeller and Shafting Symposium, September 25–26, 2018
Paper Number: SNAME-PSS-2018-07
... development marine transportation fuel oil consumption evaluation ship performance noon report data social responsibility propulsion efficiency operation propeller performance power curve report data propeller performance value voyage propeller thrust Evaluation of Ship Performance Using...
Proceedings Papers

Paper presented at the SNAME 13th Propeller and Shafting Symposium, September 11–12, 2012
Paper Number: SNAME-PSS-2012-007
... propeller thrust marine transportation efficiency available power loading rpm boat thickness rudder consideration blade area nozzle open propeller modification diameter manufacturer blade tip Practical Considerations for Optimization of Propulsion Efficiency in Commercial Vessels Cliff...
Proceedings Papers

Paper presented at the SNAME 12th Propeller and Shafting Symposium, September 15–16, 2009
Paper Number: SNAME-PSS-2009-05
... to lower shaft speed at a given thrust. When running astern, there is little change in the KT curve for the cupped propeller and therefore negligible change in advance coefficient but there is a large increase in the required torque at a given shaft speed. efficiency torque polynomial coefficient...
Proceedings Papers

Paper presented at the SNAME 11th Propeller and Shafting Symposium, September 12–13, 2006
Paper Number: SNAME-PSS-2006-04
... experimental data. revolution coefficient velocity vector propeller fluid dynamics iteration crash-ahead condition suction side thrust pressure side pressure distribution pressure distribution operation dtrc 4118 equation reservoir simulation side pressure distribution vector plot crash...
Proceedings Papers

Paper presented at the SNAME 11th Propeller and Shafting Symposium, September 12–13, 2006
Paper Number: SNAME-PSS-2006-06
... accurately be assessed by model tests. production control open propeller experiment application propeller production monitoring efficiency model experiment actuator disk nozzle scale effect ducted propeller system coefficient oosterveld reynolds number thrust reservoir surveillance...
Proceedings Papers

Paper presented at the SNAME 9th Propeller and Shafting Symposium, September 20–21, 2000
Paper Number: SNAME-PSS-2000-19
... requirement frequency component rms calculation propulsion system peak value us government ship thrust bearing torque propeller vibration criteria thrust bearing engine shaft magnitude THE DEVELOPMENT OF A NEW STANDARD FOR THE VIBRATION OF SHIP PROPULSION SYSTEMS 1Gary P. Antonides1...
Proceedings Papers

Paper presented at the SNAME 9th Propeller and Shafting Symposium, September 20–21, 2000
Paper Number: SNAME-PSS-2000-13
...-1 Kr KQ N n p Q R Re T Ux VA Vs w, wQ 170 a £TvA Advance ratio based on torque wake fraction advance speed, VswQ)lnD Thrust coefficient, Thrust/,a,2D4 Torque coefficient, Torque/,a,2D5 Rotational speed, revolutions per minute (rpm) Rotational speed, revolutions per second Pitch Total static pressure...
Proceedings Papers

Paper presented at the SNAME 8th Propeller and Shafting Symposium, September 23–24, 1997
Paper Number: SNAME-PSS-1997-07
... distributions optimized for the given operating conditions is given. The results of an analytical study to determine the preferred geometry characteristics to optimize backing performance is presented. Full-scale operating experience is given, including comparisons of measured vibration, bollard thrust...
Proceedings Papers

Paper presented at the SNAME 8th Propeller and Shafting Symposium, September 23–24, 1997
Paper Number: SNAME-PSS-1997-14
... performance model denny measurement system thrust Small Propeller Cup: A Proposed Geometry Standard and a New Performance Model Donald M. MacPherson, Member ABSTRACT A widely used technique to correct and enhance vessel performance is propeller "cup" - a curvature applied to the trailing edge...
Proceedings Papers

Paper presented at the SNAME 8th Propeller and Shafting Symposium, September 23–24, 1997
Paper Number: SNAME-PSS-1997-21
... massachusetts institute propulsor separation calculation duct parametric study interaction thrust circulation design process geometry propeller circulation distribution A Design Procedure for Marine Vehicles with Integrated Propulsors J.E. Kerwin,1 Fellow, S. D. Black,2 Associate Member, T. E...
Proceedings Papers

Paper presented at the SNAME 8th Propeller and Shafting Symposium, September 23–24, 1997
Paper Number: SNAME-PSS-1997-01
... a power prediction for a propeller driven vessel the hull resistance is usually first determined by separate tests. After that the thrust deduction, wake fraction and relative rotative efficiency are determined in self propulsion tests. After scale effects have been taken into consideration also the model...
Proceedings Papers

Paper presented at the SNAME 7th Propeller and Shafting Symposium, September 20–21, 1994
Paper Number: SNAME-PSS-1994-012
... program pressure distribution propeller design propeller marine transportation efficiency design point blade section 5-bladed propeller engineering propeller characteristic coefficient hull characteristic section characteristic boat cavitation thrust THE SOCIETY OF NAVAL ARCHITECTS...
Proceedings Papers

Paper presented at the SNAME 7th Propeller and Shafting Symposium, September 20–21, 1994
Paper Number: SNAME-PSS-1994-022
... characteristics of a range of composite propellers. Results are presented in this paper. marine transportation bronze propeller application jersey city thrust marine engineer 601 pavonia avenue efficiency volume fraction manufacture boat mould coefficient naval architect equation fibre...
Proceedings Papers

Paper presented at the SNAME 7th Propeller and Shafting Symposium, September 20–21, 1994
Paper Number: SNAME-PSS-1994-003
... rotor coefficient propeller production monitoring power thrust coefficient thrust coefficient dynamic similarity flow coefficient upstream oil & gas torque coefficient thrust equation efficiency characteristic ducted propeller propulsor THE SOCIETY OF NAVAL ARCHITECTS AND MARINE...
Proceedings Papers

Paper presented at the SNAME 7th Propeller and Shafting Symposium, September 20–21, 1994
Paper Number: SNAME-PSS-1994-006
... with conventional and CLT blades. efficiency arrangement clt propeller infinite upstream marine transportation revolution rate expression propeller thrust calculation coefficient new momentum theory infinite downstream tandem propeller diameter actuator disk propeller disk THE SOCIETY...
Proceedings Papers

Paper presented at the SNAME 6th Propeller and Shafting Symposium, September 17–18, 1991
Paper Number: SNAME-PSS-1991-08
... propeller 4381 pressure distribution geometry crashback operation torque coefficient coefficient fraction propeller 4383 thrust THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 Paper to be presented at the Propellers/Shafting '91 Symposium Virginia...
Proceedings Papers

Paper presented at the SNAME 6th Propeller and Shafting Symposium, September 17–18, 1991
Paper Number: SNAME-PSS-1991-02
... on an arbitrary-geometry cycloidal propulsor. Both local blade-oriented and total circumferentially-averaged thrust and torque loads are computed·. Comparisons with experimental data and other analysis procedures show that the numerical implementation is generally adequate for preliminary design. Cavitation...
Proceedings Papers

Paper presented at the SNAME 6th Propeller and Shafting Symposium, September 17–18, 1991
Paper Number: SNAME-PSS-1991-07
... model. A comparative study of marine propulsor alternatives for a given application is presented. strength diameter coefficient interaction velocity circulation distribution efficiency chord length geometry lifting line thrust vorticity propulsor alternative duct stator propulsor...
Proceedings Papers

Paper presented at the SNAME 6th Propeller and Shafting Symposium, September 17–18, 1991
Paper Number: SNAME-PSS-1991-15
... propeller experiment circumferential average wake surface circumferentially pitch angle duct hub surface duct thrust coefficient stator coordinate system stator blade reference frame ducted propeller interaction THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS 601 PAVONIA AVENUE...
Proceedings Papers

Paper presented at the SNAME Propellers '88 Symposium, September 20–21, 1988
Paper Number: SNAME-PSS-1988-21
... oelastic effect skewed blade procedure loading reduction displacement deflection cavitation distortion distribution geometry application rotation torque thrust THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS 601 IPavonia Avenue, Jersey City, NJ 07306 Paper to be presenled al...

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