Transient Axial Response of a Gun Launched Rocket Motor Case during Launch

Abstract

An analysis for the transient axial response of a gun launched motor case with unbonded propellant is performed. The present effort extends a previous work by including higher harmonics in the representation of the breech force at the aft end of the motor case. Including the higher harmonics leads to a more accurate representation of the actual breech force. The results of the analysis indicate that the dynamic effects on the internal axial force in the case are negligible for a breech force duration of 0.026 seconds. This is the same conclusion that was made in the previous work based upon a simple representation of the breech force.

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Document Details

Document Type
Technical Report
Publication Date
Jan 29, 1973
Accession Number
AD0758128

Entities

People

  • David Salinas
  • Robert E. Ball

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Axial Loads
  • Boundaries
  • California
  • Coordinate Systems
  • Differential Equations
  • Elastic Properties
  • Equations
  • Fourier Series
  • Gun Launched
  • Harmonics
  • Modulus Of Elasticity
  • Propellants
  • Rocket Engines
  • Rockets
  • Sine Waves
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.