... Today's powertrains for marine applications are characterized by their high-power density in combination with the requirements for a light construction and the lowest possible acoustic transmission. This is no longer coupled only to military vessels or luxury yachts but is becoming more and more...

... with less than half the weight. A unique integral coupling design allows for angular misalignment and axial deflection while reducing weight, part count, and assembly time over legacy metal flex packs. Use of advanced carbon composite materials greatly reduces corrosion and its associated maintenance costs...

... include shaft and propulsion coupling bolting as well as on anchoring and positioning bolting often required for most line shaft bearings, thrust bearings, and steering gears. Both a Finite Element Method (FEM) study and a shear test were recently performed to confirm superior load carrying ability...

... Recently several classification societies have redefined and made more stringent their requirements for coupling bolts. Different bolting methods and their requirements have been further defined. This includes fitted bolts, non-fitted bolts and combinations thereof. For fitted bolts, the term...

... Software developed at the Massachusetts Institute of Technology for the unsteady propeller analysis and effective wake calculation has been transitioned to the Naval Surface Warfare Center, Carderock Division. The lifting surface propeller software is designed to be coupled with a three...

...-up and finally the dynamics for a System equipped with a coupling with progressive stiffness. drillstring design drillstring dynamics marine transportation frequency mass elastic system excitation natural frequency engine natural mode torque propulsion plant angular displacement...

... Since the introduction of the keyless hydraulic coupling in the early 40's. many new applications have been developed and benefits realized. One of the latest applications is using the couplings together with GARB rolling bearings on straight shafts in a modular design for shafting arrangements...

... bearing number 1 diameter deflection bearing movement torsional stress shaft bearing load coupling consequence interpretation alignment beam theory instruction principal stress bearing equation magnitude Investigating Some Fundamental Notions of Propulsion Shaft Alignment John B...

... fiber requirement shaft coupling arrangement bearing water jet critical speed Utilization of Carbon Fiber Torque Tubes in Ultralight, High Powered Propeller Shafting Gerhard Kirschey, Dipl-Ing (V), Lawrence A. Burich (V) ABSTRACT There has long been a need for increasing the limits ofpropeller...

... Developments within the diesel engine and associated marine reduction gear industries have created a need for a radical evaluation of the torsionally flexible coupling fitted between them to provide a general solution of the requirements for the series producers in either industry (generally...

... The design of friction, shear, and combined friction and shear bolted couplings are examined. The determination of stresses in shear loaded bolts and the flange surfaces that they contact is emphasized. upstream oil & gas marine transportation friction free body diagram bolt head...

... Shaft alignment and vibration calculations must account for the inertial, flexibility and damping Proper ties of the couplings used to connect components in the propulsion train. After a brief description of the most common mechanical fluid and electric couplings, the paper outlines the basic...