Search | Engineering

Subscribe Submit

Home Journals Focus Videos Achievement Fronts About Us 中文版

Resource Type

Journal Article 81

Year

2023 5

2022 7

2021 9

2020 4

2019 4

2018 3

2017 3

2016 2

2015 1

2014 3

2013 4

2012 3

2011 3

2010 1

2009 5

2008 15

2007 2

2006 2

2005 1

2000 2

open ︾

Keywords

hollow 4

Hollow fiber 2

atomization 2

cold-formed steel 2

compressor 2

different 2

impact 2

impingement 2

improved version 2

3D braiding 1

3D vision 1

4D printing 1

J-integral 1

α-MnO₂ hollow nanorods 1

Additive manufacturing 1

Ag/PMMA multiple film 1

Al₂O₃ 1

Birth-death process 1

Bridgman process 1

open ︾

Search scope:

排序： Display mode:

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 in

Keywords： steam turbine hollow stationary blade dehumidity numerical simulation

HTML PDF Collect

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

HTML PDF Collect

Nanostructured hollow spheres of hydroxyapatite: preparation and potential application in drug delivery

Xiaojing ZHANG, Weixin ZHANG, Zeheng YANG, Zhao ZHANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3, Pages 246-252 doi: 10.1007/s11705-012-1299-9

Abstract: A solvothermal method has been successfully used to prepare nanostructured hydroxyapatite (HA) hollow(TEM) and field-emission scanning electron microscopy (FESEM) images show that the shells of the HA hollowThe HA hollow spheres exhibited a higher drug loading capacity and more favorable release properties

Keywords： hydroxyapatite hollow spheres synthesis drug release

HTML PDF Collect

Seismic performance of precast hollow bridge piers with different construction details

Zhiqiang WANG,Jiping GE,Hongyi WEI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4, Pages 399-413 doi: 10.1007/s11709-014-0273-7

Abstract: Currently the design scheme of precast hollow concrete bridge piers will be adopted in bridge designFor comparative study of seismic performance of the hollow bridge piers which had different design details, six specimens of hollow section bridge pier were designed and tested.

Keywords： hollow pier seismic performance cyclic load precast concrete bridge columns

HTML PDF Collect

Impingement of hollow cone spray on hot porous medium

ZHAO Zhiguo, XIE Maozhao

Frontiers in Energy 2008, Volume 2, Issue 3, Pages 273-278 doi: 10.1007/s11708-008-0048-8

Abstract: understanding of the formation of homogenous mixture in a porous medium engine, the interaction between hollowmodel, heat transfer model and linearized instability sheet atomization (LISA) model to simulate the hollowWith a simple model to describe the structure of the porous medium, the interaction between hollow cone

Keywords： improved version simple impingement atomization hollow

HTML PDF Collect

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

HTML PDF Collect

Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4, Pages 462-467 doi: 10.1007/s11705-009-0011-1

Abstract: EVAL hollow fiber membrane adsorbents filled with powder D061-type cation exchange resin were preparedThe results showed that EVAL hollow fiber membrane adsorbents filled with D061-type cation exchange resins

Keywords： substrate copolymer EVAL exchange EVAL hollow resin-filled content

HTML PDF Collect

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.Based on this model, a numerical aerodynamic optimization platform for the axial compressor 2D bladeprofiles is developed, by which aerodynamic optimization of two compressor blade profiles are presented

Keywords： definition objective distribution fitting precision combination numerical aerodynamic

HTML PDF Collect

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

HTML PDF Collect

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

HTML PDF Collect

Analysis of planetary gear transmission in non-stationary operations

Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 88-94 doi: 10.1007/s11465-013-0361-8

Abstract:

Planetary gearboxes operate usually in non-stationary conditions generated mainly by variable loads

Keywords： planetary gearbox non-stationary conditions variable load dynamic response time frequency analysis

HTML PDF Collect

response spectrum method for efficient and robust non-uniform undersampled frequency identification in blade

Frontiers of Mechanical Engineering doi: 10.1007/s11465-023-0759-x

Abstract: The noncontact blade tip timing (BTT) measurement has been an attractive technology for blade healthHowever, the severe undersampled BTT signal causes a significant challenge for blade vibration parameterthe minimum variance distortionless response (MVDR) of the direction of arrival (DoA) estimation for blade

Keywords： blade tip timing (BTT) frequency identification minimum variance distortionless response (MVDR) undersampled blade health monitoring (BHM)

HTML PDF Collect

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 beHowever, 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 toolthe spindle rotation algorithm was proposed for the tool edge orientation problem when the straight bladeThe model of the machine tool and the definition of the straight blade were conducted in the VERICUT

Keywords： honeycomb core straight blade ultrasonic cutting tool pose postprocessor

HTML PDF Collect

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 wall-climbing mobile platform (MP) of a robot for repairing a hydraulic turbine blade onsite is developedThe 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.chassis, is developed to make the platform self-adapt to the complex curved surface of the turbine bladeautomatically adapt to complex spatial surfaces, which satisfy the requirements of a hydraulic turbine blade

HTML PDF Collect

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

HTML PDF Collect

Title Author Date Type Operation

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

Vibration analysis of blade-disc coupled structure of compressor

WANG Chunjie, SONG Shunguang, ZONG Xiao

Journal Article

Nanostructured hollow spheres of hydroxyapatite: preparation and potential application in drug delivery

Xiaojing ZHANG, Weixin ZHANG, Zeheng YANG, Zhao ZHANG

Journal Article

Seismic performance of precast hollow bridge piers with different construction details

Zhiqiang WANG,Jiping GE,Hongyi WEI

Journal Article

Impingement of hollow cone spray on hot porous medium

ZHAO Zhiguo, XIE Maozhao

Journal Article

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

Journal Article

Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

Journal Article

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

LIU Xiaojia, NING Fangfei

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

Analysis of planetary gear transmission in non-stationary operations

Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR

Journal Article

response spectrum method for efficient and robust non-uniform undersampled frequency identification in blade

Journal Article

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

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

京公网安备 11010502051620号京ICP备11030251号-2

关注我们