DYNAMIC FACTORS FOR OFFSHORE CRANES
The paper presents the theoretical background to a study of the dynamic effects experienced by cranes on offshore platforms. The study was initiated to review cranes operating in Bass Strait, Australia. A simplified dynamic model of a luffing crane has been used to derive the magnitude of the dynamic factor which occurs when a load undergoing sinusoidal motion is lifted. A theoretical idealisation of a crane was established to determine stiffness. Calculated values of crane stiffness are presented to show the influence of crane properties and operating radius. Dynamic factors for six different cranes are given, showing the influence of wave conditions, geometry and reeving of the hoist system. Overturning moments occurring on the slewing ring are considered in relation to their original design values.
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Supplemental Notes:
- Presented at the Eighth Annual Offshore Technology Conference, Houston, Texas, May 3-6, 1976.
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Corporate Authors:
Offshore Technology Conference
6200 North Central Expressway
Dallas, TX United States 45206 -
Authors:
- Charrett, D E
- Hyden, A M
- Conference:
- Publication Date: 1976-5
Media Info
- Pagination: p. 565-576
Subject/Index Terms
- TRT Terms: Cargo handling; Cargo handling equipment; Cranes
- Old TRIS Terms: Crane capacity
- Subject Areas: Freight Transportation; Marine Transportation;
Filing Info
- Accession Number: 00138223
- Record Type: Publication
- Source Agency: Offshore Technology Conference
- Report/Paper Numbers: V2, OTC 2578 Proceeding
- Files: TRIS
- Created Date: Aug 23 1976 12:00AM