机械科学与技术2017，Vol.36Issue(4)：498-503,6.DOI:10.13433/j.cnki.1003-8728.2017.0402
轴向偏心交变载荷作用下螺纹副滑移研究
Study on Slip of the Screw Thread Subjected to Axial Eccentric Alternate Load
摘要
Abstract
By analyzing the bolt jiont subjected to axial alternating load,the equations between slip angle of screw thread of bolt and the variation in load is established.Based on this,considering the load distribution on the thread of stay bolt under eccentric load,the eccentric load factor is introduced and then the theoretical model on the relationship between slip angle of screw thread and axial eccentric alternate load is obtained.The bolt-joint of M16×2 is calculated with the established theoretical model under specific load and compared with that obtained from finite-element method of Izumi under the same conditions,good agreement is obtained.The slip test of bolt connections under axial alternating loads are performed using vibration shaker,the slippage is measured and compared with the calculated results to validate the correctness of the theoretical formulation.The study provideds a theoretical analysis method to study the self-loosening of stay bolt.关键词
轴向交变载荷/偏心载荷系数/理论模型/滑移实验Key words
axial alternating load/eccentric load factor/theory model/slip text分类
机械制造引用本文复制引用
何竞飞,汪成生,汤涛..轴向偏心交变载荷作用下螺纹副滑移研究[J].机械科学与技术,2017,36(4):498-503,6.基金项目
国家重点基础研究发展计划(973计划)项目(2013CB035706)资助 （973计划）
