• Title/Summary/Keyword: anti-loose nut

Search Result 1, Processing Time 0.016 seconds

Analysis of Fatigue Safety for Anti-Loose Nuts System with Dual Nuts (이중너트가 적용된 풀림방지너트 시스템의 피로안전성 분석)

  • Choi, Jung-Youl;Kim, Jun-Hyung;Chung, Jee-Seung;Ka, Sang-Hyun
    • Journal of the Korean Society of Safety
    • /
    • v.32 no.4
    • /
    • pp.22-27
    • /
    • 2017
  • In this study, the authors aim to evaluate a structural and fatigue safety of a new type anti-loose nut system with dual nuts composed of main nut and outer nut to enhance the long-term workability and durability so as to improve the performance of conventional anti-loose nut system. Also, a three-dimensional finite-element method analysis was performed to consider the actual geometry and material property of anti-loose nut system with dual nuts and the effect of static and dynamic loads and loading directions. The analytical results showed that the overall static and dynamic stress of the components of the anti-loose nut system with dual nuts were found to be less than that of the fatigue limit of Goodman-smith diagram and allowable stress of each materials, therefore the anti-loose nut system with dual nuts was sufficient to ensure a structural and fatigue safety.