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An Effective Method for Improving Silicon Micro-resonator System Performance

Xia Dunzhu,Wang Shourong,Zhou Bailing

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 71-74

Abstract: Its two step working flows for roughness and fineness searching and digital interface technology were

Keywords： direct digital synthesis (DDS)     silicon micro-resonator     AD9954     digital signal processing    

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An Adaptive Demodulation Method for BPSK Signals

Li Yanxin,Hu Aiqun,Song Yubo

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 49-51

Abstract:

The paper presents a novel method for demodulating the binary phase shift keying (BPSK) signals basingThe performance of the method in theory is compared with computer simulating results.Also, it is indicated that the demodulation method has many advantages over conventional ones, such as

Keywords： digital communications     adaptive signal processing     demodulation     BPSK    

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Digital image correlation-based structural state detection through deep learning

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 45-56 doi: 10.1007/s11709-021-0777-x

Abstract: The digital image correlation (DIC) technology was utilized to collect vibration information of an actualsteel frame, and subsequently, the raw signals, without further pre-processing, were directly utilized

Keywords： structural state detection     deep learning     digital image correlation     vibration signal     steel frame    

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Adaptive Wavelet Thresholding Denoising Used in Gravitational Signal Processing

Zhao Liye,Zhou Bailing,Li Kunyu

Strategic Study of CAE 2006, Volume 8, Issue 3,   Pages 49-52

Abstract: The signal to noise ration (SNR) is used as the index for evaluating the performance of the data processing

Keywords： gravimeter     signal processing     wavelet transform     adaptive wavelet threshold     adaptive Kalman     filering    

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A simple digital control algorithm for three phase shunt active filter: simulation and experimentation

Subbaraman SRINATH, Chandan KUMAR, M. P. SELVAN

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 119-128 doi: 10.1007/s11708-013-0288-0

Abstract: A novel and simple control algorithm using digital signal processor (DSP) has been proposed and realizedThe simulation is conducted in MATLAB/SIMULINK while DSP TMS320LF2407 is employed in the digital implementation

Keywords： shunt active filter (SAF)     power quality     voltage source inverter (VSI)     digital signal processor (DSP)    

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Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0713-3

Abstract: systems, the intercoupling of structure transfer paths results in a great reduction or even change of signalTherefore, using gearbox housing vibration signal to identify gear meshing excitation signal is of greatNumerical simulation and experimental results demonstrate the proposed method can realize gear faultdiagnosis better than the original housing vibration signal and has the potential to be generalized to

Keywords： gearbox fault diagnosis     meshing stiffness     identification     transfer path     signal processing    

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How do digital technologies improve supply chain resilience in the COVID-19 pandemic?

Frontiers of Engineering Management   Pages 39-50 doi: 10.1007/s42524-022-0230-4

Abstract: Digital technologies (DTs) can assist businesses in coping with supply chain (SC) disruptions causedThis study draws on information processing theory to develop a serial mediation model to address thisThe empirical results reveal that digital supply chain platforms (DSCPs), as well as supply chain traceabilityThe findings also offer essential insights for firms to modify their digital strategies and thrive in

Keywords： digital technologies     supply chain resilience     information processing theory     COVID-19     China    

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

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

Abstract: This paper proposes an ultrafast laser processing system for trimming complex ceramic structural partsOpto-electromechanical cooperative control software is developed to control the laser processing systemA zonal and layering processing method for three-dimensional contours on complex surfaces is proposedCompared with the results of manual trimming, the method proposed in this paper has higher accuracy,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    

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Structural design of morphing trailing edge actuated by SMA

Qi WANG, Zhiwei XU, Qian ZHU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 268-275 doi: 10.1007/s11465-013-0261-y

Abstract:

In this paper, the morphing trailing edge is designed to achieve the up and down deflection under the aerodynamic load. After a detailed and accurate computational analysis to determine the SMA specifications and layout programs, a solid model is created in CATIA and the structures of the morphing wing trailing edge are produced by CNC machining. A set of DSP measurement and control system is designed to accomplish the controlling experiment of the morphing wing trailing edge. At last, via the force analysis, the trailing edge is fabricated with four sections of aluminum alloy, and the arrangement scheme of SMA wires is determined. Experiment of precise control integral has been performed to survey the control effect. The experiment consists of deflection angle tests of the third joint and the integral structure. Primarily, the ultimate deflection angle is tested in these two experiments. Therefore, the controlling experiment of different angles could be performed within this range. The results show that the deflection error is less than 4% and response time is less than 6.7 s, the precise controlling of the morphing trailing edge is preliminary realized.

Keywords： morphing wing trailing edge     shape memory alloy     digital signal processor     PID algorithm    

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Application of a Novel Fuzzy Clustering Method Based on Chaos Immune Evolutionary Algorithm for EdgeDetection in Image Processing

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 85-89 doi: 10.1007/s11465-005-0023-6

Abstract:

A novel fuzzy clustering method based on chaos immune evolutionary algorithm (CIEFCM) is presentedto solve fuzzy edge detection problems in image processing.The experimental results show that the method not only can correctly detect the fuzzy edge and exiguous

Keywords： disturbance amplitude     disturbance     diversity     generation     processing    

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M-LFM: a multi-level fusion modeling method for shape−performance integrated digital twin of complex

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0708-0

Abstract: As a virtual representation of a specific physical asset, the digital twin has great potential for realizingTo leverage its capacity, the M-LFM method combines the advantages of different surrogate models andThe results show that the M-LFM method has better performance in the computational efficiency and calculationaccuracy of the stress prediction compared with the polynomial response surface method and the krigingmethod.

Keywords： shape−performance integrated digital twin (SPI-DT)     multi-level fusion modeling (M-LFM)     surrogate model    

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frequency synthesizer with optimized VCO and reduced current mismatch CP

Chunhui Li, Lijun Sun, Jiarong Liu, Yang Zhang, Haiyang Li, Huaxiang Wang,ChunhuiLi@tju.edu.cn,sunlijun@tju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 2,   Pages 141-286 doi: 10.1631/FITEE.1900558

Abstract: processing methods.In this study, three s—the (QD) method, Hilbert method, and sliding discrete time Fourier transformmethod—are analyzed for their applications in processing sensor signals and providing measurement resultsBased on the digital signal processor, a converter program is implemented on its evaluation board.The improved signal processing methods are evaluated in terms of the measurement accuracy and complexity

Keywords： Coriolis mass flowmeter     Digital signal processing method     Two-phase flow condition     Quadrature demodulation    

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Real-time task processing method based on edge computing for spinning CPS

Shiyong YIN, Jinsong BAO, Jie LI, Jie ZHANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 320-331 doi: 10.1007/s11465-019-0542-1

Abstract: This paper presents an edge computing-based method that is different from traditional centralized cloudA system model is established, and a real-time task processing method is proposed for the edge computingExperimental results indicate that the proposed real-time task processing method based on edge computingcan effectively solve the delay problem of real-time task processing in spinning cyber-physical systems

Keywords： edge computing     real-time task     scheduling     CPS     spinning    

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A block zero-padding method based on DCFT for L1 parameter estimations in weak signal and high dynamic

Chao WU,Lu-ping XU,Hua ZHANG,Wen-bo ZHAO

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 796-804 doi: 10.1631/FITEE.1500058

Abstract: Weak L1 signal acquisition in a high dynamic environment primarily faces a challenge: the integrationestimations in weak signal and high dynamic environments.The proposed method combines DCFT and block zero-padding.Simulation results show that compared with the BASIC method, the proposed method can precisely detectthe high dynamic parameters in lower SNR when the length of the received signal is fixed.

Keywords： Threshold detection     Discrete chirp-Fourier transform     Block zero-padding     High dynamic     Weak L1 signal    

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Basic research on machinery fault diagnostics: Past, present, and future trends

Xuefeng CHEN, Shibin WANG, Baijie QIAO, Qiang CHEN

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 264-291 doi: 10.1007/s11465-018-0472-3

Abstract: field of machinery fault diagnosis in terms of four main aspects: Fault mechanism, sensor technique and signalacquisition, signal processing, and intelligent diagnostics.

Keywords： fault diagnosis     fault mechanism     feature extraction     signal processing     intelligent diagnostics    

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Title Author Date Type Operation

An Effective Method for Improving Silicon Micro-resonator System Performance

Xia Dunzhu,Wang Shourong,Zhou Bailing

Journal Article

An Adaptive Demodulation Method for BPSK Signals

Li Yanxin,Hu Aiqun,Song Yubo

Journal Article

Digital image correlation-based structural state detection through deep learning

Journal Article

Adaptive Wavelet Thresholding Denoising Used in Gravitational Signal Processing

Zhao Liye,Zhou Bailing,Li Kunyu

Journal Article

A simple digital control algorithm for three phase shunt active filter: simulation and experimentation

Subbaraman SRINATH, Chandan KUMAR, M. P. SELVAN

Journal Article

Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Journal Article

How do digital technologies improve supply chain resilience in the COVID-19 pandemic?

Journal Article

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

Journal Article

Structural design of morphing trailing edge actuated by SMA

Qi WANG, Zhiwei XU, Qian ZHU

Journal Article

Application of a Novel Fuzzy Clustering Method Based on Chaos Immune Evolutionary Algorithm for EdgeDetection in Image Processing

Journal Article

M-LFM: a multi-level fusion modeling method for shape−performance integrated digital twin of complex

Journal Article

frequency synthesizer with optimized VCO and reduced current mismatch CP

Chunhui Li, Lijun Sun, Jiarong Liu, Yang Zhang, Haiyang Li, Huaxiang Wang,ChunhuiLi@tju.edu.cn,sunlijun@tju.edu.cn

Journal Article

Real-time task processing method based on edge computing for spinning CPS

Shiyong YIN, Jinsong BAO, Jie LI, Jie ZHANG

Journal Article

A block zero-padding method based on DCFT for L1 parameter estimations in weak signal and high dynamic

Chao WU,Lu-ping XU,Hua ZHANG,Wen-bo ZHAO

Journal Article

Basic research on machinery fault diagnostics: Past, present, and future trends

Xuefeng CHEN, Shibin WANG, Baijie QIAO, Qiang CHEN

Journal Article