Resource Type

Journal Article 67

Year

2023 6

2022 10

2021 5

2020 2

2019 4

2018 2

2017 5

2016 7

2015 4

2014 1

2013 1

2011 1

2010 3

2009 1

2008 2

2007 3

2006 4

2004 1

2002 1

2001 1

open ︾

Keywords

acoustic emission 8

Localization 3

Mobile robot 2

Simultaneous localization and mapping (SLAM) 2

digital image correlation 2

frequency 2

localization 2

wavelet analysis 2

AE location 1

Abnormal state 1

Acoustic imaging 1

Acoustic localization 1

Acoustic metamaterials 1

Advanced passive technology 1

Appearance feature 1

BEM 1

Biomarker 1

Brazilian disc splitting test 1

CAP1400 1

open ︾

Search scope:

排序： Display mode:

Acoustic localization with multi-layer isogradient sound speed profile using TDOA and FDOA Research Article

Dongzhou ZHAN, Sitian WANG, Shougui CAI, Huarong ZHENG, Wen XU,wxu@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 1,   Pages 164-175 doi: 10.1631/FITEE.2100398

Abstract: The inhomogeneity of water leads to bending of sound rays, making the existing localization algorithmsBased on the derived gradient of the signal's Doppler shift at the sensor node, a novel underwater node localizationOverall, accurate and reliable node localization can be achieved.

Keywords： Underwater acoustic sensor network     Acoustic localization     Sound speed profile     Time difference of arrival    

HTML PDF Collect

Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 313-318 doi: 10.1007/s11708-009-0064-3

Abstract: An experimental study was conducted to investigate the effects of acoustic cavitation on natural convectiveThe experimental results indicated that heat transfer could be enhanced by acoustic cavitation and had

Keywords： heat transfer enhancement     augmentation     acoustic cavitation     acoustic streaming     convective heat transfer    

HTML PDF Collect

Acoustic fault signal extraction via the line-defect phononic crystals

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 10-10 doi: 10.1007/s11465-021-0666-y

Abstract: The defect band, namely, the formed resonance band of line-defect PCs enables the incident acoustic wave

Keywords： phononic crystals     line-defect     fault signal extraction     acoustic enhancement    

HTML PDF Collect

Robotized machining of big work pieces: Localization of supporting heads

Wojciech SZYNKIEWICZ, Teresa ZIELIŃSKA, Włodzimierz KASPRZAK

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 357-369 doi: 10.1007/s11465-010-0103-0

Abstract: A planner for a self adaptable and reconfigurable fixture system is proposed. The system is composed of mobile support agents that support thin sheet metal parts to minimize part dimensional deformation during drilling and milling operations. Compliant sheet metal parts are widely used in various manufacturing processes including automotive and aerospace industries. The main role of the planner is to generate an admissible plan of relocation of the mobile agents. It has to find the admissible locations for the supporting heads that provide continuous support in close proximity to the tool and trajectories of the mobile bases characterized by very high speeds during the relocation phases.

Keywords： fixture     robot     milling     drilling    

HTML PDF Collect

Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 503-509 doi: 10.1007/s11709-011-0132-8

Abstract: This paper experimentally investigated wire breakage detection in a steel cable by acoustic emission

Keywords： acoustic emission (AE)     waveform     wire breakage     attenuation factor     wave velocity    

HTML PDF Collect

Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 37-45 doi: 10.1007/s11708-015-0390-6

Abstract: Compared with the traditional engines, the thermo-acoustic engines are relatively new and can act asIn this paper, the influence of the dimensions of the main parts of the small-scale Stirling thermo-acousticBased on the numerical simulation, a small-scale Stirling thermo-acoustic engine were constructed and

Keywords： thermo-acoustic Stirling engine     small-scale     simulation     experiment    

HTML PDF Collect

Acoustic characteristics of bi-directional turbines for thermoacoustic generators

Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1027-1036 doi: 10.1007/s11708-020-0702-3

Abstract: A general expression for the acoustic characteristics of the bi-directional turbine was proposed basedThe turbine in the oscillating flow was treated in a lumped-parameter model to extract the acoustic impedanceThe key acoustic impedance characteristic of the turbine was the resistance and inertance due to complex

Keywords： thermoacoustic power generator     acoustic characteristics     bi-directional impulse turbine     energy conversion    

HTML PDF Collect

Research on acoustic-structure sensitivity using FEM and BEM

ZHANG Jun, ZHAO Wenzhong, ZHANG Weiying

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 62-67 doi: 10.1007/s11465-007-0010-1

Abstract: Acoustic-structure sensitivity is used to predict the change of acoustic pressure when a structure designUsing FEM (finite element method) and BEM (boundary element method) acoustic-structure sensitivity wasacoustic BEM.Then, acoustic-structure sensitivity was computed by linking velocity sensitivity in FEM and acousticAcoustic pressure sensitivity with respect to structure thickness achieved in frequency ranges 1 100

Keywords： sensitivity method     BEM     acoustic pressure     pressure sensitivity     frequency    

HTML PDF Collect

Optimal localization of complex surfaces in CAD-based inspection

XU Jinting, LIU Weijun, SUN Yuwen

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 426-433 doi: 10.1007/s11465-008-0068-4

Abstract: Complex surface inspection requires the optimal localization of the measured surface related to the designThis paper presents a new technique for solving the localization problem.The basic approach consists of two steps: 1) rough localization of the measured points to the designsurface based on curvature features, which can produce a good initial estimate for the optimal localization; 2) fine localization based on the least-square principle so that the deviation between the measured

Keywords： deviation     comparison     non-linear     localization     inspection    

HTML PDF Collect

Acoustic emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete

Frontiers of Structural and Civil Engineering   Pages 1341-1356 doi: 10.1007/s11709-023-0988-4

Abstract: The dynamic splitting tensile damage characteristics were evaluated using acoustic emission (AE) parameter

Keywords： steel fiber reinforced concrete     freeze–thaw cycling     Brazilian disc splitting test     acoustic emissiontechnique     dynamic splitting tensile acoustic emission properties    

HTML PDF Collect

evolution behavior of polypropylene fiber reinforced concrete subjected to sulfate attack based on acoustic

Ninghui LIANG; Jinwang MAO; Ru YAN; Xinrong LIU; Xiaohan ZHOU

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 316-328 doi: 10.1007/s11709-022-0810-8

Abstract: reinforced concrete (PFRC) subjected to sulfate attack, a uniaxial compression test was carried out based on acoustic

Keywords： polypropylene fiber reinforced concrete     sulfate attack     damage evolution behavior     acoustic emission    

HTML PDF Collect

Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 208-222 doi: 10.1007/s11709-010-0025-2

Abstract: This paper presents a numerical investigation on the strain localization of an idealized sand in biaxialexamined to illustrate the link between microscopic and macroscopic variables in the case of strain localizationThe study shows that strain localization of the granular material in the tests proceeds with localizations

Keywords： idealized sand     strain localization     numerical analyses     distinct element method (DEM)    

HTML PDF Collect

Accumulated damage process of thermal sprayed coating under rolling contact by acoustic emission technique

Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 227-232 doi: 10.1007/s11465-016-0395-9

Abstract: Acoustic emission (AE) technique was introduced to monitor the RCF process of the coatings.

Keywords： accumulated damage     spray coating     rolling contact fatigue     acoustic emission    

HTML PDF Collect

Perspective: Acoustic Metamaterials in Future Engineering Perspective

Qiangbing Lu, Xin Li, Xiujuan Zhang, Minghui Lu, Yanfeng Chen

Engineering 2022, Volume 17, Issue 10,   Pages 22-30 doi: 10.1016/j.eng.2022.04.020

Abstract:

Acoustic metamaterials (AMMs) are a type of artificial materials thaton their future engineering, especially in the most promising fields of sound absorption/isolation, acoustic

Keywords： Acoustic metamaterials     Sound absorption/isolation     Acoustic imaging     Engineering application    

HTML PDF Collect

Application of Wavelet Transform to Acoustic Radiation and Scattering

Wen Lihua,Ren Xingmin

Strategic Study of CAE 2002, Volume 4, Issue 8,   Pages 63-68

Abstract:

Traditional boundary element methods with a full matrix equation for acoustic problems, have beenIn this paper, the new wavelet approaches have been presented for solving acoustic radiation and scattering, and structural-acoustic coupling.a basis of the orthogonal wavelets on the interval, and a wavelet spectral formulation for solving acousticThe new technique was employed to investigate the underwater acoustic radiation from a complicate structure

Keywords： wavelet analysis     acoustic radiation and scattering     structural-acoustic coupling     frequency iteration    

HTML PDF Collect

Title Author Date Type Operation

Acoustic localization with multi-layer isogradient sound speed profile using TDOA and FDOA

Dongzhou ZHAN, Sitian WANG, Shougui CAI, Huarong ZHENG, Wen XU,wxu@zju.edu.cn

Journal Article

Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Journal Article

Acoustic fault signal extraction via the line-defect phononic crystals

Journal Article

Robotized machining of big work pieces: Localization of supporting heads

Wojciech SZYNKIEWICZ, Teresa ZIELIŃSKA, Włodzimierz KASPRZAK

Journal Article

Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Journal Article

Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Journal Article

Acoustic characteristics of bi-directional turbines for thermoacoustic generators

Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO

Journal Article

Research on acoustic-structure sensitivity using FEM and BEM

ZHANG Jun, ZHAO Wenzhong, ZHANG Weiying

Journal Article

Optimal localization of complex surfaces in CAD-based inspection

XU Jinting, LIU Weijun, SUN Yuwen

Journal Article

Acoustic emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete

Journal Article

evolution behavior of polypropylene fiber reinforced concrete subjected to sulfate attack based on acoustic

Ninghui LIANG; Jinwang MAO; Ru YAN; Xinrong LIU; Xiaohan ZHOU

Journal Article

Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

Journal Article

Accumulated damage process of thermal sprayed coating under rolling contact by acoustic emission technique

Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO

Journal Article

Perspective: Acoustic Metamaterials in Future Engineering

Qiangbing Lu, Xin Li, Xiujuan Zhang, Minghui Lu, Yanfeng Chen

Journal Article

Application of Wavelet Transform to Acoustic Radiation and Scattering

Wen Lihua,Ren Xingmin

Journal Article