中国机械工程2025，Vol.36Issue(4)：703-714,12.DOI:10.3969/j.issn.1004-132X.2025.04.007
航空发动机精锻叶片榫头加工夹具设计
Design of Jig and Fixture for Machining Precision Forged Blade Tenons of Aeroengine
摘要
Abstract
Precision forged blades of aeroengine were a typical thin-walled parts with complex curved surface.When milling the blade tenons,it was difficult to locate and easy to produce deforma-tions and vibrations.Aiming at the above problems,a design method of multi-point clamping fixture for precision forged blades was proposed,and a low stress hard clamping fixture was designed.Static analysis was used to optimize the clamping position,select the coping element materials and optimize the clamping method.The effectiveness of the fixture was tested by modal tests and vibration tests.The results show that the low-band amplitude of the system is reduced by 50％,the high-band ampli-tude by 75％,the first-order resonance frequency is increased from 210 Hz to 402 Hz,the damping ratio under the peak value is increased from 17.4％to 25.9％,the effective value of vibration displace-ment signals is reduced by 35％,and the machining error margin is reduced by 59％.关键词
航空发动机叶片/夹具/有限元分析/装夹方案/模态测试Key words
aeroengine blade/Jig and fixture/finite element analysis/clamping scheme/modal test引用本文复制引用
张申,梁嘉炜,吴动波,王辉,赵兵,许立君,周奋..航空发动机精锻叶片榫头加工夹具设计[J].中国机械工程,2025,36(4):703-714,12.基金项目
国家自然科学基金(52305482) （52305482）
中国航发集团自主创新专项资金(ZZCS-2022-022) （ZZCS-2022-022）
中国航发集团产学研合作项目(HFZL2020CXY020) （HFZL2020CXY020）
