THE DESIGN AND PERFORMANCE OF A PNEUMATIC CRANE COMPENSATION SYSTEM
The lifting and repositioning of a load from a crane vessel induces large disturbing forces and moments that need to be compensated for so that the crane vessel's mean attitude in heel or trim remains close to level. This paper describes the design and operation of a pneumatic crane compensation system that is used to counteract crane disturbing forces. The system consists of a set of open-bottom tanks located within the vessel's hull. The tanks are connected to a pneumatic power and control system that maintains the air pressures within the tanks through actuation of electro-pneumatic valves. The paper also describes the design and performance calculations for the first application of this pneumatic crane compensation system installed on the monohull crane vessel DB50 recently completed by Sunderland Shipbuilders Ltd.
- Report; Paper No.7 presented at Royal Institute of Naval Architects Spring Meeting, April 19, 1989
- Witz, J A
- Patel, M H
- Publication Date: 1989
- Features: References;
- Pagination: 14 p.
- TRT Terms: Floating cranes; Loads; Pneumatic equipment
- Old TRIS Terms: Db50 (Vessel); Motion compensators
- Subject Areas: Marine Transportation;
- Accession Number: 00660804
- Record Type: Publication
- Source Agency: Maritime Technical Information Facility
- Files: TRIS
- Created Date: Jul 21 1994 12:00AM