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http://dx.doi.org/10.5139/JKSAS.2008.36.3.285

Pyroshock and Vibration Characteristics of PEEK Washer Shock Absorbers  

Youn, Se-Hyun (한국항공우주연구원 구조팀)
Jang, Young-Soon (한국항공우주연구원 구조팀)
Han, Jae-Hung (한국과학기술원 항공우주공학전공)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.3, 2008 , pp. 285-290 More about this Journal
Abstract
Pyrotechnic shock or pyroshock is characterized as a transient vibration phenomena which shows large acceleration and high frequency range up to 10kHz during the operation of separation devices where explosives are used. During the flight of a launch vehicle, pyro-shock is mainly generated at several events such as satellite separation, fairing separation and stage separation. In this paper, characteristics of pyroshock are introduced briefly, and PEEK washer shock absorber is applied for the reduction of pyroshock in the high frequency range. With some electronic devices, reduction characteristic of pyroshock using washer type shock absorber are studied. Random vibration tests are also performed for the verification of vibrational characteristics.
Keywords
Pyro-shock; Shock Absorber; Vibration Characteristic; PEEK washer; Shock Response Spectrum;
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