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Error analysis and compensation of compound measuring system for blade surface

Li Bing,Chen Lei,Ding Jianjun,Jiang Zhuangde

Strategic Study of CAE 2013, Volume 15, Issue 1,   Pages 39-44

Abstract:

The high-accuracy measurement of complex airfoil surfaces is a critical issue in the inspection ofUsing the principle, the airfoil surface and root datum of a blade are measured based on contact

Keywords： blade airfoil surface     compound measuring principle     error analysis     error compensation     laser interferometry    

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New response surface model and its applications in aerodynamic optimization of axial compressor blade

LIU Xiaojia, NING Fangfei

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 541-549 doi: 10.1007/s11708-008-0077-3

Abstract: A parametric method for the axial compressor 2D blade profiles is proposed in which the blade geometriesare defined with the parameters commonly used for blade definition, which ensures that the geometricsignificance is clear and an unreasonable blade profile is not generated.A novel response surface model is proposed which regards the objective distribution function in the vicinityof a sample as normal school, and then generates the response surface function in the whole design space

Keywords： definition     objective distribution     fitting precision     combination     numerical aerodynamic    

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Postprocessor development for ultrasonic cutting of honeycomb core curved surface with a straight blade

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0729-8

Abstract: When ultrasonically cutting honeycomb core curved parts, the tool face of the straight blade must bealong the curved surface’s tangent direction at all times to ensure high-quality machining of the curvedsurface.However, given that the straight blade is a nonstandard tool, the existing computer-aided manufacturingTo solve this problem, this paper proposed an algorithm for extracting a straight blade real-time tool

Keywords： honeycomb core     straight blade     ultrasonic cutting     tool pose     postprocessor    

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Probability strength design of steam turbine blade and sensitivity analysis with respect to random parametersbased on response surface method

DUAN Wei

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 107-115 doi: 10.1007/s11708-008-0018-1

Abstract: Many stochastic parameters have an effect on the reliability of a steam turbine blade during practicalTo improve the reliability of blade design, it is necessary to take these stochastic parameters intoAn equal cross-section blade is investigated and a finite element model is built parametrically.Geometrical parameters, material parameters and load parameters of the blade are considered as inputThe results show that combination of the finite element method, the response surface method and Monte

Keywords： Probability sensitivity     sensitivity analysis     number     cross-section     statistical    

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Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 394-408 doi: 10.1007/s11709-016-0352-z

Abstract: into two parts. (1) A frame work to design the aircraft wing structure and (2) analysis of a morphing airfoilFurthermore, the discussed design principles in the first part are extended to the design of a morphing airfoilThe advantages of the morphing airfoil with auxetic structure are (i) larger displacement with limitedThe compliance characteristics of the airfoil are investigated through a numerical model.

Keywords： wing design     aerodynamic loads     morphing airfoil     auxetic structures     negative Poisson’s ratio    

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Mesoscale fabrication of a complex surface for integral impeller blades

Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 116-131 doi: 10.1007/s11465-017-0426-1

Abstract: However, the machining of a mesoscale impeller with a complex integral surface is difficult because ofSubsequently, fractal theory is applied to characterize the surface quality of the integral impeller.

Keywords： mesoscale fabrication     micro-milling tool     mesoscale milling     impeller blade    

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Vibration analysis of blade-disc coupled structure of compressor

WANG Chunjie, SONG Shunguang, ZONG Xiao

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 302-305 doi: 10.1007/s11708-008-0064-8

Abstract: While a 3D assembly model of blade-disc structure was established, a finite element model for calculatingthe vibration characteristics during blade-disc coupling was built by taking into consideration thecoupling action of contact stress between the blade and the disc.The vibration characteristics of the blade-disc coupling structure was calculated and analyzed using

Keywords： blade-disc coupling     assembly     experiment     vibration     blade-disc structure    

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Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0731-1

Abstract: Blade strain distribution and its change with time are crucial for reliability analysis and residuallife evaluation in blade vibration tests.This study proposes a method of full-field and real-time strain reconstruction of an aero-engine bladeA displacement-to-strain transformation matrix is derived on the basis of the blade mode shapes in theThe proposed method is validated on an aero-engine blade in numerical and experimental cases.

Keywords： aero-engine blade     displacement response     dynamic strain reconstruction     mode shape     strain gauge    

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Dynamic characteristics of a shrouded blade with impact and friction

Xumin GUO, Jin ZENG, Hui MA, Chenguang ZHAO, Lin QU, Bangchun WEN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 209-226 doi: 10.1007/s11465-019-0566-6

Abstract: A simplified computational model of a twisted shrouded blade with impact and friction is established.In this model, the shrouded blade is simulated by a flexible Timoshenko beam with a tip-mass, and the

Keywords： twisted shrouded blade     dynamic analysis     impact     friction     separate–stick–slip motion    

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Nonlinear dynamic behavior of rotating blade with breathing crack

Laihao YANG, Zhu MAO, Shuming WU, Xuefeng CHEN, Ruqiang YAN

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 196-220 doi: 10.1007/s11465-020-0609-z

Abstract: This study aims at investigating the nonlinear dynamic behavior of rotating blade with transverse crackA novel nonlinear rotating cracked blade model (NRCBM), which contains the spinning softening, centrifugalThe rotating blade is considered as a cantilever beam fixed on the rigid hub with high rotating speedand the crack is deemed to be open and close continuously in a trigonometric function way with the bladeindicator (NDI) is introduced to characterize the nonlinearity caused by blade crack.

Keywords： rotating blade     breathing crack     nonlinear vibration     nonlinear damage indicator    

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Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Youmin HOU, Danmei XIE, Wangfan LI, Xinggang YU, Yang SHI, Hanshi QIN

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 288-296 doi: 10.1007/s11708-011-0160-z

Abstract: As a result of adopting saturation steam and long blade, problems of water erosion of last stage bladediscrete phase model simulation results and experiment data, the efficiency of existing dehumidity bladeA new stationary dehumidity blade was designed to elevate the dehumidity efficiency: the efficiency inthe suction surface was increased by 21.5%, and that in the pressure surface was increased by 12.2%.

Keywords： steam turbine     hollow stationary blade     dehumidity     numerical simulation    

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Mobile platform for hydraulic turbine blade repair robot

GUI Zhongcheng, CHEN Qiang, SUN Zhenguo, ZHANG Wenzeng, LIU Kang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 164-169 doi: 10.1007/s11465-008-0035-0

Abstract: The MP is equipped with ferromagnetic adhesive devices and can work on a spatial curved surface.The platform adheres to the blade surface through the force provided by the ferromagnetic devices, anda certain gap exists between the magnetic devices and the blade’s surface.devices with the platform’s chassis, is developed to make the platform self-adapt to the complex curved surfaceof the turbine blade.
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A zone-layered trimming method for ceramic core of aero-engine blade based on an advanced reconfigurable

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0675-5

Abstract: Ceramic structural parts are one of the most widely utilized structural parts in the industry. However, they usually contain defects following the pressing process, such as burrs. Therefore, additional trimming is usually required, despite the deformation challenges and difficulty in positioning. This paper proposes an ultrafast laser processing system for trimming complex ceramic structural parts. Opto-electromechanical cooperative control software is developed to control the laser processing system. The trimming problem of the ceramic cores used in aero engines is studied. The regional registration method is introduced based on the iterative closest point algorithm to register the path extracted from the computer-aided design model with the deformed ceramic core. A zonal and layering processing method for three-dimensional contours on complex surfaces is proposed to generate the working data of high-speed scanning galvanometer and the computer numerical control machine tool, respectively. The results show that the laser system and the method proposed in this paper are suitable for trimming complex non-datum parts such as ceramic cores. Compared with the results of manual trimming, the method proposed in this paper has higher accuracy, efficiency, and yield. The method mentioned above has been used in practical application with satisfactory results.

Keywords： ceramic parts trimming     computer-aided laser manufacturing     3D vision     reconfigurable laser processing system    

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Centrifugal compressor blade optimization based on uniform design and genetic algorithms

SHU Xinwei, GU Chuangang, XIAO Jun, GAO Chuang

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 453-456 doi: 10.1007/s11708-008-0083-5

Abstract: An optimization approach to centrifugal compressor blade design, incorporating uniform design method

Keywords： information     computational     centrifugal compressor     regression analysis     CFD    

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Novel casting processes for single-crystal turbine blades of superalloys

Dexin MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 3-16 doi: 10.1007/s11465-018-0475-0

Abstract: In these techniques, the heat barrier that hinders lateral SC growth from the blade airfoil into theheating and cooling system was developed to achieve symmetric thermal conditions for SC solidification in blade

Keywords： superalloy     investment casting     Bridgman process     directional solidification     single crystal     turbine blade    

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Title Author Date Type Operation

Error analysis and compensation of compound measuring system for blade surface

Li Bing,Chen Lei,Ding Jianjun,Jiang Zhuangde

Journal Article

New response surface model and its applications in aerodynamic optimization of axial compressor blade

LIU Xiaojia, NING Fangfei

Journal Article

Postprocessor development for ultrasonic cutting of honeycomb core curved surface with a straight blade

Journal Article

Probability strength design of steam turbine blade and sensitivity analysis with respect to random parametersbased on response surface method

DUAN Wei

Journal Article

Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Journal Article

Mesoscale fabrication of a complex surface for integral impeller blades

Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN

Journal Article

Vibration analysis of blade-disc coupled structure of compressor

WANG Chunjie, SONG Shunguang, ZONG Xiao

Journal Article

Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Journal Article

Dynamic characteristics of a shrouded blade with impact and friction

Xumin GUO, Jin ZENG, Hui MA, Chenguang ZHAO, Lin QU, Bangchun WEN

Journal Article

Nonlinear dynamic behavior of rotating blade with breathing crack

Laihao YANG, Zhu MAO, Shuming WU, Xuefeng CHEN, Ruqiang YAN

Journal Article

Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Youmin HOU, Danmei XIE, Wangfan LI, Xinggang YU, Yang SHI, Hanshi QIN

Journal Article

Mobile platform for hydraulic turbine blade repair robot

GUI Zhongcheng, CHEN Qiang, SUN Zhenguo, ZHANG Wenzeng, LIU Kang

Journal Article

A zone-layered trimming method for ceramic core of aero-engine blade based on an advanced reconfigurable

Journal Article

Centrifugal compressor blade optimization based on uniform design and genetic algorithms

SHU Xinwei, GU Chuangang, XIAO Jun, GAO Chuang

Journal Article

Novel casting processes for single-crystal turbine blades of superalloys

Dexin MA

Journal Article