ELLIPTICAL

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Machinability of elliptical ultrasonic vibration millingγ-TiAl:Chip formation,edge breakage,and subsurface layer deformation
《Chinese Journal of Aeronautics》2025年第3期624-644,共21页Ziwen XIA Chenwei SHAN Menghua ZHANG Wengang LIU Minchao CUI Ming LUO 
co-supported by the Science Center for Gas Turbine Project,China(No.P2022-AB-IV-001-002)and the National Natural Science Foundation of China(No.91960203);the Fundamental Research Funds for the Central Universities(No.D5000230048);and the Innovation Capability Support Program of Shaanxi(No.2022TD-60);The authors wish to thankfully acknowledge Zhuzhou Cemented Carbide Cutting Tools Co.,Ltd.for providing cutting tools for our experiments.
Superior strength and high-temperature performance make γ-TiAl vital for lightweight aero-engines. However, its inherent brittleness poses machining problems. This study employed Elliptical Ultrasonic Vibration Milli...
关键词：Γ-TIAL Elliptical ultrasonic vibration millingi Chip formation Edge breakage Microstructure 
Elliptical vibration cutting of large-size thin-walled curved surface parts of pure iron by using diamond tool with active cutting edge shift
《Chinese Journal of Aeronautics》2023年第6期402-419,共18页Zhenhua JIAO Renke KANG Dongxing DU Jiang GUO 
the financial support from Science Challenge Project(No.TZ2016006-0103-01);National Natural Science Foundation of China(No.51975096 and No.51805498).
Large-size thin-walled curved surface parts of pure iron are crucial in aerospace,national defense,energy and precision physical experiments.However,the high machining accuracy and surface quality are difficult to ach...
关键词：Curved surface Diamond tool Elliptical vibration cutting Pure iron Thin-walled parts 
Optimal location and shape definition of elliptical ventilation openings on aero engine turbine rotors with stress concentration effect被引量：1
《Chinese Journal of Aeronautics》2022年第1期388-397,共10页Haibing YU Tiefeng CHEN Yanjie QIU 
The aero engine turbine rotors are under strong centrifugal load and the highest thermal load.The ventilation openings on the rotors are inevitable,because air flow need to pass through them to cool the temperatures d...
关键词：Aero engine Elliptical ventilation opening Finite Element Method(FEM) ROTOR Stress concentration 
Elliptical model for surface topography prediction in five-axis flank milling被引量：3
《Chinese Journal of Aeronautics》2020年第4期1361-1374,共14页Liping WANG Shuyi GE Hao SIa Liwen GUAN Feiyu DUAN Yuzhe LIU 
financially supported by the Major National S&T Program of China(2017ZX04002001);the Major National S&T Program of China(2016ZX04004004);the National Natural Science Foundation of China(51675301)。
In five-axis flank milling operations,the intersecting surfaces of different cutting edges create roughness on the milled surfaces that cannot be ignored in situations with strict requirements,especially in aeronautic...
关键词：Cutter runout Elliptical paths Five-axis flank milling Surface topography Workpiece curvature 
Complex variable method for an anti-plane elliptical cavity of one-dimensional hexagonal piezoelectric quasicrystals被引量：13
《Chinese Journal of Aeronautics》2015年第4期1287-1295,共9页Yu Jing Guo Junhong Xing Yongming 
supported by the National Natural Science Foundation of China (Nos.11262012, 11462020, 10761005 and 11262017);the Scientific Research Key Program of Inner Mongolia University of Technology of China (No.ZD201219);the Natural Science Foundation of Inner Mongolia Department of Public Education of China (No.NJZZ13037);the Inner Mongolia Natural Science Foundation of China (No.2013MS0114)
Based on the fundamental equations of piezoelasticity of quasicrystal media, using the symmetry operations of point groups, the linear piezoelasticity behavior of one-dimensional（1D）hexagonal quasicrystals is invest...
关键词：Complex variable methodElliptical cavity Fracture mechanics Piezoelasticity QUASICRYSTALS 
Elliptical formation control based on relative orbit elements被引量：3
《Chinese Journal of Aeronautics》2013年第6期1554-1567,共14页Yin Jianfeng Han Chao 
supported by the Innovation Foundation of BUAA for PhD Graduates (No.YWF-12-RBYJ-024);the National Natural Science Foundation of China (No.11002008);National Basic Research Program of China (No.2009CB723906)
A new set of relative orbit elements（ROEs）is used to derive a new elliptical formation flying model.In-plane and out-of-plane motions can be completely decoupled,which benefts elliptical formation design.The inverse...
关键词：Elliptical formation control Formation flying Fuel optimal Impulsive control Relative orbit elements 
Optimization of structural parameters for elliptical cross-section spiral equal-channel extrusion dies based on grey theory被引量：2
《Chinese Journal of Aeronautics》2013年第1期209-216,共8页Wang Chengpeng Li Fuguo Lu Hongya Yuan Zhanwei Chen Bo 
co-supported by National Natural Science Foundation of China (No. 51275414);Aeronautical Science Foundation of China (No. 2011ZE53059);National Defense Basic Research Program (No. 51318040105);Graduate Starting Seed Fund of Northwestern Polytechnical University(No. Z2011006)
The elliptical cross-section spiral equal-channel extrusion （ECSEE） process is simulated by using Deform-3D finite element software. The ratio m of major-axis to minor-axis length for ellipse-cross-section, the tors...
关键词：Correlation degree Elliptical cross-section spiral equal-channel extrusion （ECSEE） Grey theory OPTIMIZATION Orthogonal design Simulation 
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