锻压技术

基于有限元仿真的航空发动机叶片辊轧成形过程参数优化

英文标题：Parameter optimization on aero-engine blade rolling process based on finite element simulation

分类号：

出版年,卷(期):页码：2022,47(3):109-115

摘要：

精密辊轧是航空发动机叶片的重要加工方式，其工艺参数难以确定，导致叶片成形效果难以控制。提出使用ABAQUS有限元仿真方法对辊轧过程进行模拟，通过改变辊轧压下量以及摩擦因数，研究压下量和摩擦因数对叶片成形结果的耦合影响，从而优化工艺参数，获得最优的参数设定。研究结果表明：随着摩擦因数的增加，该辊轧模型叶片的宽展整体增加，且所受轧制力与摩擦因数呈线性正相关；随着端口压下量的增加，叶片所受轧制力以及叶片宽展均有所提升，但当压下量增加超过0.06 mm时，轧制力以及宽展发生突增，叶片变形集中于边缘局部区域，不利于成形结果的精密控制。

Precision rolling is an important processing method for aero-engine blades, and it is difficult to determine its process parameters, resulting in controlling the blade forming effect difficultly. Therefore, it was proposed to use finite element simulation software ABAQUS to simulate the rolling process, and by changing rolling reduction amount and friction factor, the coupling influence of the rolling reduction amount and the friction factor on the forming result for blade was studied. Furthermore, the process parameters were optimized, and the optimal parameter settings were obtained. The research results show that with the increasing of the friction factor, the overall blade width of the rolling model increases, and the rolling force is linear positive correlation with the friction factor. With the increasing of the reduction amount in port, the rolling force on the blade and the blade width increase, but when the reduction amount exceeds 0.06 mm, the rolling force and the blade width increase suddenly, and the blade deformation is concentrated in the local area of edge, which is not conducive to the precise control of the forming result.

基金项目：

国家自然科学基金资助项目（51905068）；辽宁省博士启动基金资助项目（20180540098）；辽宁省自然科学基金资助项目（2020-HYLH-24）；东北大学重点实验室开放课题基金资助项目（2020RALKFKT012）

王国栋(1995-)，男，硕士研究生 E-mail：1026112215@qq.com 通信作者：王鸿雨(1989-)，男，博士，副教授 E-mail：wanghongyu@dlmu.edu.cn

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