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http://dx.doi.org/10.5139/JKSAS.2018.46.12.1004

Bolt Loosening Analysis under Transverse Vibration for Design of Reliable Pyrotechnic Separation Nut  

Choi, Jae Young (Department of Aerospace Engineering, Inha University)
Woo, Jeongmin (Department of Aerospace Engineering, Inha University)
Kang, Dahoon (Department of Aerospace Engineering, Inha University)
Kim, Jeong Ho (Department of Aerospace Engineering, Inha University)
Cho, Jin Yeon (Department of Aerospace Engineering, Inha University)
Jang, Seung-gyo (Agency for Defense Development)
Yang, Hee Won (Hanwha Corporation)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.12, 2018 , pp. 1004-1011 More about this Journal
Abstract
Recently, pyrotechnic separation nut has attracted a considerable attention because of its shock reduction effect among various pyrotechnic mechanical devices. However, its bolt loosening behavior under transverse vibration has not been studied sufficiently, since segmented nuts are utilized instead of conventional nut in pyrotechnic separation nut. With the background, bolt loosening analyses are carried out referring to Junker vibration test. The analysis procedure consists of two steps. The first step is the bolt fastening step, screwing the bolt by fastening torque. The second step is the bolt loosening step under transverse vibration. Through the procedure, bolt loosening behaviors are obtained, and the effect of clearance on loosening behavior is closely investigated for reliable design of pyrotechnic separation nut.
Keywords
PMD; Pyrotechnic Separation Nut; Segmented Nuts; Bolt Loosening; Junker Vibration Test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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