LIFEBOAT ANALYSIS SYSTEM (FOR MICROCOMPUTERS); SOFTWARE

The Lifeboat Analysis System (LAS) is a computer program to predict the launch behavior of the free-fall lifeboat. The free-fall lifeboat is quickly becoming a common lifesaving appliance on seagoing vessels and offshore facilities. The maritime authorities of most countries have accepted the free-fall concept and are in the process of developing design and certification criteria for these lifeboats. Within the LAS, the lifeboat is idealized as a three- dimensional rigid body. The shape of the lifeboat, its weight and inertial characteristics, and the free-fall height and launch angle are defined by the analyst. In the launch prediction model, the launch is assumed to occur in the vertical plane. The forces acting on the lifeboat as well as the displacements of the lifeboat all occur in this plane. Included in the launch prediction model is the capability to compute the global accelerations at any seat location so that an estimation of the potential for the occupants within the lifeboat to be injured during the free-fall launch can be determined.

• Supplemental Notes:
  • System: IBM compatible; MS DOS Version 3.3 or higher operating system. Language: Turbo-C. Requires 640K of RAM and a math coprocessor.; The software is on one 5 1/4 inch diskette, 1.2M high density. Documentation included; may be ordered separately as PB94- 114022, PB94-114030, and PB94-114048. See also AD-808 818.
• Corporate Authors:

  United States Coast Guard

  2100 Second Street, SW
  Washington, DC  United States  20593
• Publication Date: 1993-4

Language

• English

Media Info

• Pagination: 1 diskette

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Dislocation (Geology); Floppy disks; Force; Forecasting; Inertia (Mechanics); Injuries; Launching; Lifeboats; Marine safety; Safety equipment; Scale models; Software; Three dimensional displays
• Uncontrolled Terms: Three dimensional models; Two dimensional models
• Old TRIS Terms: Free fall models
• Subject Areas: Bridges and other structures; Marine Transportation; Safety and Human Factors;

Filing Info

• Accession Number: 00666492
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: DOT/SW/DK-93/010
• Files: TRIS
• Created Date: Oct 3 1994 12:00AM