| 由振动引起的螺栓连接预紧力松脱的数学模型 |
| |
| 引用本文： | 肖子恒,李维荣. 由振动引起的螺栓连接预紧力松脱的数学模型[J]. 机电产品开发与创新, 2011, 24(4): 7-9. DOI: 10.3969/j.issn.1002-6673.2011.04.003 |
| |
| 作者姓名： | 肖子恒 李维荣 |
| |
| 作者单位： | 中机生产力促进中心,北京,100044 |
| |
| 摘 要： | 引入一种数学模型以研究螺纹连接在横向振动作用下引起的松脱.此横向振动激励会引起螺纹接触面间的滑动以及螺栓头与支撑表面之间的滑动.式中包括剪切力、支撑力以及螺纹摩擦阻力矩,它们均与振动速度相关,当所施加横向振动激励足够大时,螺纹连接会出现松脱现象.本文研究了螺栓预紧力、支撑力及螺纹摩擦系数、横向振动激励以及螺栓头下部弯矩...
|
| 关 键 词： | 振动 预紧力:松脱 数学模型 |
A Mathematical Model for Vibration-induced Loosening of Preloaded Threaded Fasteners |
| |
| XIAO Zi-Heng,LI Wei-Rong. A Mathematical Model for Vibration-induced Loosening of Preloaded Threaded Fasteners[J]. Development & Innovation of Machinery & Electrical Products, 2011, 24(4): 7-9. DOI: 10.3969/j.issn.1002-6673.2011.04.003 |
| |
| Authors: | XIAO Zi-Heng LI Wei-Rong |
| |
| Affiliation: | XIAO Zi-Heng,LI Wei-Rong(China Productivity Center for Machinery,Beijing 110004,China) |
| |
| Abstract: | A mathematical model is established for studying the phenomenon that threaded fasteners often loosen under transverse excitation.This excitation leads slippage between the engaged thread and the contact part between bolt head and the bearing surface.The model includes shear forces,bearing force and thread friction torque,they are related with transverse velocity.When the transverse excitation is large enough,loosening will occur.The effect of bolt preload,bearing force,thread friction coefficients,the trans... |
| |
| Keywords: | vibration preload loosening mathematical model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
