Modeling and Simulation of a Health Monitoring System in an Analog Motor

Abstract

Finite element modeling of a cross section of a solid rocket motor is used to determine the relationship between several variables in a health monitoring system. The system consists of pressure sensors mounted on the inner case wall In a pressurized motor, differences among the sensor readings are indicative of crack growth in the propellant The computational data is used to determine the relationship between sensor sensitivity, the number of sensors, and the minimum detectable crack size. The method of determining the relationships is applicable to other loading conditions, such as thermal loading.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2003
Accession Number
ADA414570

Entities

People

  • Greg Ruderman
  • Tim Miller

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Computational Modeling
  • Computer Programs
  • Crack Propagation
  • Fracture (Mechanics)
  • J Integrals
  • Materials
  • Measurement
  • Mechanics
  • Military Research
  • Pressure Vessels
  • Propellants
  • Radial Stress
  • Rocket Engines
  • Simulations
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Rocket Propulsion.