DEVELOPMENT OF A SCIENTIFIC BASIS FOR ANALYSIS OF AIRCRAFT SEATING SYSTEMS

A three-dimensional mathematical model of an aircraft seat, occupant, and restraint system has been developed as an aid to the development of crashworthy seats and restraint systems for general aviation aircraft. The occupant model consists of eleven rigid mass segments whose dimensions and inertial properties have been determined from studies of human body anthropometry and kinematics. The seat model is made up of beam and membrane elements with provision for simulating plastic behavior by the introduction of plastic hinges in the beams. A user-oriented computer program called Seat Occupant Model-Light Aircraft (SOM-LA) based on the three-dimensional model has been developed for use by engineers concerned with design and analysis of general aviation seats and restraint systems in that detailed descriptions of both are used as input. The response of the seat and occupant, restraint system loads, and various injury criteria are predicted for any given set of crash conditions.

• Corporate Authors:

  Ultrasystems, Incorporated

  Dynamic Science Division, 1850 West Pinnacle Peak Road
  Phoenix, AZ  United States  85027

  NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER

  ATLANTIC CITY, NJ  United States 
• Authors:
  • LAANANEN, D H
• Publication Date: 1975-1

Media Info

• Pagination: 226 p.

Subject/Index Terms

• TRT Terms: Aircraft; Anthropometry; Aviation safety; Civil aircraft; Crashes; Loads; Manual safety belts; Mathematical models; Restraint systems; Seats; Simulation
• Identifier Terms: FORTRAN (Computer program language)
• Uncontrolled Terms: Restraint
• Subject Areas: Aviation; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00090150
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt.
• Contract Numbers: DOT-FA72WA-3101
• Files: NTIS
• Created Date: Apr 22 1975 12:00AM