提花机拉刀疲劳寿命分析及优化  

Fatigue Life Analysis and Optimization of Jacquard Broach

作　　者：宋涛 潘梁 阮见 瞿书涯 张波 Song Tao;Pan Liang;Ruan Jian;Qu Shuya;Zhang Bo(Nanjing Fiberglass Research and Design Institute Co.,Ltd.,Nanjing 210012)

机构地区：[1]南京玻璃纤维研究设计院有限公司,南京210012

出　　处：《玻璃纤维》2023年第6期25-29,共5页Fiber Glass

基　　金：项目编号:2021YCJS02-01-03项目名称:中国建材集团攻关专项资助、特种纤维复合材料国家重点实验室应用基础研究专项资助。

摘　　要：针对提花机拉刀在使用过程中出现周期性断裂问题,推测拉刀发生疲劳失效。对拉刀机构进行有限元动力学分析,提取拉刀单周期受载,基于累积损伤理论计算疲劳寿命,验证疲劳失效推测。提出拉刀等面积优化方案,仿真结果表明,经等面积方案优化的拉刀寿命提高一倍,为降低设备维护成本、提高设备运行稳定性和生产效率提供理论指导。Regarding the problem of periodical fracture of jacquard broach during use,it was speculated that the fatigue failure of broach occurred.The broach mechanism was analyzed with finite element dynamics and the single periodic load was derived.Based on the fatigue life calculation with the cumulative damage theory,the speculation of fatigue failure was verified.An equal area optimization method was proposed to optimize the fatigue life of the broach.The result showed that the fatigue life of the broach after equal area optimization was doubled.The method has provided a theoretical guidance for reducing the maintenance cost and improving the operation stability and production efficiency of the equipment.

关 键 词：提花机拉刀 疲劳寿命优化 动力学分析 累积损伤 等面积 

分 类 号：TQ171.776.45[化学工程—玻璃工业]