航空發(fā)動機(jī)精鍛葉片榫頭加工夾具設(shè)計

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關(guān)鍵詞：航空發(fā)動機(jī)葉片；夾具；有限元分析；裝夾方案；模態(tài)測試

中圖分類號：V263

DOI：10.3969/j.issn.1004-132X.2025.04.007 開放科學(xué)（資源服務(wù)）標(biāo)識碼（OSID）：

Design of Jig and Fixture for Machining Precision Forged Blade Tenons of Aeroengine

ZHANG Shen1 LIANG Jiawei2 WU Dongbo3 WANG Hui4 ZHAO Bing1 XU Lijun5ZHOU Fen5 1.School of Mechanical Engineering，Qinghai University，Xining，810016

2.Department of Mechanical Engineering，Tsinghua University，Beijing，100084 3.Institute for Aero Engine，Tsinghua University，Beijing，l00084 4.Institute for Aero Engine，Beihang University，Beijing，l00191 5.AECC Aviation Power Co.，Ltd.，Xi'an，710021

Abstract： Precision forged blades of aeroengine were a typical thin-walled parts with complex curved surface. When miling the blade tenons， it was difficult to locate and easy to produce deformations 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 amplitude by 75% ，the first-order resonance frequency is increased from 210Hz to 402Hz ，the damping ratio under the peak value is increased from 17.4% to 25.9% ，the effective value of vibration displacement signals is reduced by 35% ，and the machining error margin is reduced by 59% ：

Key words： aeroengine blade; Jig and fixture； finite element analysis；clamping scheme；modal test

0 引言

航空發(fā)動機(jī)是整個飛機(jī)的核心，其性能對航空發(fā)動機(jī)的整體表現(xiàn)起著決定性作用。（剩余17686字）