Three gearing proposals for tanker of about 72,000 tons dw, with two turbines geared to single screw developing 26,500 max shaft hp at 109 propeller rpm; it is concluded that use of hardened and ground gearing for first reduction units can be advantage, preferable with dual tandem drive; procedure for surface hardening of gears; selection of steel, based on aspects of heat treatment and fatigue properties; alternative processes, notably induction hardening and nitriding. (See also North East Coast Instn Engrs and Shipbldrs -- Trans v 75 pt 4 Feb 1959 p 139-64, (discussion) pt 6 Mar-Apr p D37-52, plate; Mar Engr and Naval Architect v 82 n 991 Feb 1959 p 63-8)
High torque merchant ship gearing
Am Soc Naval Engrs -- J
1959
8 pages
Article (Journal)
English
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High torque merchant ship gearing
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