Hypervelocity Launcher Improvement Techniques

Abstract

ULLAHOMA, Tenn., Rept. no. ARO-VKF-TR-72-114.(*hypervelocity guns, design), optimization, sabot projectiles, stresses, diaphragms(mechanics), pressure, test methodsThe purpose of this work was to reduce the damage to models caused by the launching accelerations in a hypervelocity launcher. A diaphragm test device was modified to better simulate conditions at diaphragm release in a hypervelocity launcher. Modification allowed hydrogen to be used as the test gas and a sabot to be placed in a short launch tube downstream of the diaphragm. Pressure transducers on both sides of the diaphragm were used to monitor the opening characteristics of various diaphragms. It was determined that diaphragms with tapered web thicknesses could be designed to produce pressure-time histories on the base of sabots that were less conducive to production of damaging transient stress waves in the sabots.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1972
Accession Number
AD0752554

Entities

People

  • D. T. Akers
  • J. R. Dewitt

Organizations

  • Arnold Engineering Development Complex

Tags

DTIC Thesaurus Topics

  • Air Force
  • Base Pressure
  • Instrumentation
  • Launch Tubes
  • Launchers
  • Launching
  • Measurement
  • Mechanics
  • Nose Tips
  • Pressure Measurement
  • Pressure Transducers
  • Standards
  • Strain Gages
  • Stress Waves
  • Stresses
  • Transducers
  • Waves

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • ballistics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow