Prevailing torque and residual prevailing torque of Bolt-Nut connections having slight pitch difference

• Nao-Aki Noda ^[1] ; Xi Liu ^[1] ; Yoshikazu Sano ^[1] ; Kosuke Tateishi ^[1] ; Biao Wang ^[1] ; Yuto Inui ^[1] ; Yasushi Takase ^[1]
  1. [1] Kyushu Institute of Technology

     Kyushu Institute of Technology

     Kokurakita Ku, Japón

     
• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 50, Nº. 6, 2022, págs. 2031-2045
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • In this study, by applying three-dimensional FEM, the nut screwing process is analyzed to obtain the prevailing torque Tp confirming anti-loosening.

    Since the nut unscrewing properties after the nut tightening is more important to prevent the nut self-loosening, the nut unscrewing is also analyzed to obtain the residual prevailing torque Tp u newly defined in this process. Both results of Tp and Tp u are in good agreement with the experimental results. With increasing the pitch difference, the residual prevailing torque Tp u increases as well as the prevailing torque Tp.