航空液压附件活塞杆螺纹压力脉冲疲劳寿命计算方法研究  

Research on the Calculation Method of Fatigue Life of Piston Rod Thread under the Pressure Pulse in Aviation Hydraulic Accessories

作　　者：蔡文波 刘小涛 Cai Wenbo;Liu Xiaotao(Naval Equipment Department,Xi'an,China;AVIC Qing'an Group Co.,Ltd.,Xi'an,China)

机构地区：[1]海军装备部,陕西西安 [2]中航工业庆安集团有限公司,陕西西安

出　　处：《科学技术创新》2024年第4期225-228,共4页Scientific and Technological Innovation

摘　　要：本文根据航空液压附件的工作原理,得到其活塞杆螺纹处在压力脉冲载荷工况下的截面内力,并以此为基础对该螺纹的疲劳寿命进行计算,后续的压力脉冲疲劳寿命试验结果表明,用该方法对螺纹的疲劳寿命进行评估是合理的。The internal forces in the thread section of the piston rod which is under the pressure pulse are obtained based on the working principle of the Aviation hydraulic Accessories.Then the fatigue life of the thread is calculated.It is proved that this method which is used to evaluate the fatigue life of the thread is effective by comparing with the results of the pressure pulse experiment.

关 键 词：螺纹 压力脉冲 疲劳寿命 

分 类 号：V215[航空宇航科学与技术—航空宇航推进理论与工程]