Analysis of Helicopter Structural Crashworthiness. Volume 1. Mathematical Simulation and Experimental Verification for Helicopter Crashworthiness

Abstract

The report describes the development of a mathematical model that will simulate the response of a UH-ID/H helicopter airframe to vertical crash loading and the full-scale crash test performed to verify the validity of the model. The results of this program indicate that: The structural weakness contributing to most impact injuries in UH-1D/H helicopter accidents are lack of resistance to failure in lateral roll-over and lack of energy-absorbing capability to reduce vertical accelerations; Thematical model is capable of accurately predicting the floor and engine accelerations and deflections; In its present form, the model does not accurately predict the transmission accelerations and deflections.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1971
Accession Number
AD0880680

Entities

People

  • Clifford I. Gatlin
  • Donald E. Goebel
  • Stuart E. Larsen

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Army Aircraft
  • Cameras
  • Computer Simulations
  • Computers
  • Drop Tests
  • Fire Extinguishers
  • Fuel Systems
  • Fuselages
  • Helicopters
  • Mathematical Models
  • Photographs
  • Rotary Wing Aircraft
  • Simulations
  • Simulators

Readers

  • Aerospace Engineering
  • Aviation Safety Risk Assessment.
  • Marine Hydrodynamics