Design of the Stop Plate and Stop Bolt for the Uniport.

Abstract

This report has two main purposes. The first is to document the problems with the previous system for limiting rotation of the Uniport. The second purpose is to document the design of the new system to limit rotation of the Uniport. (The Uniport consists of a unicycle type mobility platform, which allows a person to 'pedal' his or her way through the virtual environment.) The previous system for limiting rotation consisted of a steel cable attached to a support structure at one end and bolted to the turntable at the other end. This system suffered from two main problems. The moment arm for the bolt holding the cable was so long that it created large stresses in the bolt, which caused it to fail by fatigue. The other main problem was that the cable twisted and kinked, which caused some of the strands of the cable to break. The new system for limiting rotation has been designed to resist fatigue failure and failure from impact loading. The stop plate and stop bolt provide an effective and reliable means to limit rotation of the Uniport.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1997
Accession Number
ADA321225

Entities

People

  • Harrison P. Crowell Iii

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Aircrafts
  • Armored Vehicles
  • Design Criteria
  • Engineering
  • Environment
  • Mechanical Engineering
  • Mechanical Working
  • Military Research
  • Modulus Of Elasticity
  • Simulations
  • Stress Concentration
  • Stresses
  • Tensile Strength
  • Tensile Stress
  • Turntables
  • Virtual Reality
  • Yield Strength

Readers

  • Electrical Engineering
  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design