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Detail Design of a Pyroshock Simulator with Ability of Generating Specified SRS

Shamsi, Mohammad | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47206 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Saadat Foumani, Mahmoud
  7. Abstract:
  8. Pyrotechnic devices are widely used by the aerospace and defense industries and consist of a broad family ofsophisticated devices using self-contained energy sourcessuch as explosives and/or pyrotechnic compositions.Pyrotechnic shock, or pyroshock, is the transient oscillatoryresponse of a structure to loading (high frequency, highmagnitude stress waves) induced by the detonation ofpyrotechnic devices incorporated into or attached to thestructure.Pyroshock Test is one of importantenvironmental tests in satellite design process. Pyroshock is one of loads that exerted on spacecraft and it's subsystems during launch process. Pyroshock can cause failure in some subsystems like sensitive electronic parts, solar cells and so on. For this reason it's necessary to make sure about strength of component underpyroshock which can be done bypyroshock simulator.The purpose ofthisresearch isto detail design a pyroshock simulator that can simulate a pyroshock with given Shock Response Spectrum (SRS) for satellite components. Requirementsand constraintsfor designhave been definedsuch astest itemdimensions, weight range and also specification of simulated pyroshock.Almost any type of shock simulators does not meet all of our requirements and constraints. After reviewingallexisted structures,tunable resonant beamin overall was best option to coverdesignrequirements andconstraints. For this reason it used as design base. However the limitation of this type of simulators is test item size and weigh, ithas beenreduced in this new design with some modification
  9. Keywords:
  10. Pyroshock ; Shock Response Spectrum (SRS) ; Satellites ; Simulators ; Detail Design ; Tunable Resonant Beam

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