... influential due to supra-regional laws.The primary structure-borne sound path is transmitted from the engine over the engine mounts into the ship's hull. This obvious path is currently already well attenuated and for the most part does not present noise vibration problems. Therefore, the secondary path from...

... Propeller and Propulsion System Optimization Tobias Huuva, Emil Cerdier, Simon Törnros, Olof Klerebrant Klasson1 1. Caterpillar Marine ABSTRACT Designing and optimizing a propulsion system is twofold. The first step is to choose the main components, such as engine ratings, engine types, propeller...

... the most challenging vessel propulsion problems. It seems appropriate to share some of the experience and learning from the author’s work to improve propulsion efficiency and smoothness of operation in commercial vessels. freight & logistics services propeller blade engine blade section...

... forms can be evaluated for use with pod drives. A look at the integration of pod systems into various types of pleasure boats (cruiser, day boat, fishing yacht, etc) is also covered including the challenges which exist for each specific vessel type. submerged propeller engine pleasure boat...

... in chapter 4 from the same author. This time the broad experience and design philosophy of such complete shaft lines shall be described and explained by using various samples of several successful applications. steel shaft steel tube diesel engine bearing shaft line input shaft application cft...

... intermediate shaft layout calculation shaft engine main bearing freight & logistics services calculation engine main bearing static load draught jack-up test result support point propeller shaft bearing load alignment ALIGNMENT OF DIRECT-COUPLED LARGE 2-STROKE MARINE PROPULSION ENGINES...

... a capacity of about 360 cars and 1,500 passengers. Their route varies from Vancouver-Vancouver Island-Sunshine Coast, with up to 9 round trips per day. The vessels have a double-ended single screw propeller configuration. Each of the controllable pitch propellers are driven by one or two diesel engines rated...

... the method recommended here, standard calculations for HP and RPM are performed at various speeds and pitches. Lines of constant speed are then plotted on an engine map, along with lines of constant fuel rate from engine bench tests. It is then possible to determine where each line of constant speed achieves...

...-up and finally the dynamics for a System equipped with a coupling with progressive stiffness. frequency engine angular displacement propeller drillstring design mass elastic system natural mode shaft lowest natural frequency drillstring dynamics excitation torque exterior torque...

... 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...

... system design coefficient reaction bearing relation tube bearing torque inertia stiffness upstream oil & gas calculation rotation torsional vibration propeller strut bearing tangential wake engine shaft gear bearing vibration THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS...