Common Flight Test Module for Multiple Harsh Environments


Abstract (Summary)
There is a growing need for universal, subminiature, low cost flight safety systems that will allow weapon systems developers, test agencies, and range safety officers to track, monitor, and if necessary for purpose of safety, initiate termination action of all types of munitions and other systems. Historically these functions have been performed by a collection of bulky and expensive components that would not be applicable if space is limited. This thesis describes the design and testing of a subminiature Common Flight Test Module (CFTM) that could be used in a wide variety of harsh airborne environments. The main design concern for the CFTM is being able to survive an extremely high shock response spectrum (SRS) that was specified by overlaying numerous SRS curves and taking the maximum acceleration at each natural frequency. Understandably, no single shock impulse would produce this SRS. Testing became very difficult because the defined SRS changed slope several times over the defined range. The second main design concern was making the CFTM module dissipate a substantial amount of power into a very small chassis that could not transfer heat via convection or radiation. The techniques described in this thesis adequately remove the heat from the circuit boards, and allows the entire assembly to operate correctly over the entire temperature range. The pyroshock simulation techniques did not create high enough acceleration levels to meet the defined SRS; but modifications are described that would possibly allow this type of simulation to reproduce the defined SRS.
Bibliographical Information:


School:University of Cincinnati

School Location:USA - Ohio

Source Type:Master's Thesis

Keywords:shock response spectrum srs common flight test module cftm airborne


Date of Publication:01/01/2008

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