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Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0737-8

Abstract: The build orientation is crucial in AM because it affects the as-built part, including its part accuracyA mechanical part is usually composed of multiple surface features.This study proposes a method to determine the build orientation of multi-feature mechanical parts (MFMPsFirst, the surface features of an MFMP are recognized and grouped for formulating the particular optimizationLastly, a multi-objective decision making method integrated by the technique for order of preference

Keywords： selective laser melting (SLM)     build orientation determination     multi-feature mechanical part (MFMP)     fuzzy analytical hierarchy process     multi-objective decision making (MODM)    

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Residual stresses in coating-based systems, part I: Mechanisms and analytical modeling

ZHANG Xiancheng, WU Yixiong, XU Binshi, WANG Haidou

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 1-12 doi: 10.1007/s11465-007-0001-2

Abstract: Thin films and multi-layered coatings comprised of different classes of materials are often used forThe thermo-mechanical integrity of these systems is becoming a major concern and is strongly relatedAnalytical models were developed to predict the residual stresses in multi-layered film structures or

Keywords： briefly     different     thermo-mechanical integrity     addition     residual    

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Unknown fault detection for EGT multi-temperature signals based on self-supervised feature learning and

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 527-544 doi: 10.1007/s11708-023-0880-x

Abstract: Therefore, a fault detection method based on self-supervised feature learning was proposed to addressA comprehensive comparison study was also conducted with various feature extractors and unary classifiersmodel can detect progressive faults very quickly and achieve improved results for comparison without feature

Keywords： fault detection     unary classification     self-supervised representation learning     multivariate nonlinear time series    

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Aseismic smart building isolation systems under multi-level earthquake excitations: Part I, conceptual

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 286-296 doi: 10.1007/s11709-015-0307-9

Abstract: show that semi-active smart building isolation systems can effectively manage seismic response for multi-degree-of

Keywords： tuned mass damper     smart building isolation     resettable device     non-linear     statistical assessment    

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Reliability-based robust design optimization of vehicle components, Part I: Theory

Yimin ZHANG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2,   Pages 138-144 doi: 10.1007/s11465-015-0333-2

Abstract:

The reliability-based design optimization, the reliability sensitivity analysis and robust design method are employed to present a practical and effective approach for reliability-based robust design optimization of vehicle components. A procedure for reliability-based robust design optimization of vehicle components is proposed. Application of the method is illustrated by reliability-based robust design optimization of axle and spring. Numerical results have shown that the proposed method can be trusted to perform reliability-based robust design optimization of vehicle components.

Keywords： vehicle components     reliability-based design optimization     reliability-based sensitivity analysis     multi-objective    

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Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 745-762 doi: 10.1007/s11709-023-0935-4

Abstract: on complex variable theory is proposed to investigate ground responses due to shallow tunneling in multi-layeredTo solve the proposed multi-boundary problem, a series of analytic functions is introduced to accuratelyBased on the principle of linear-elastic superposition, the multi-boundary problem is converted intopresent model is superior to the classical model for analyzing ground responses of shallow tunneling in multi-layered

Keywords： analytical model     mechanical response     multi-layered ground     shallow tunneling     ground surface load    

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Reliability-based robust design optimization of vehicle components, Part II: Case studies

Yimin ZHANG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2,   Pages 145-153 doi: 10.1007/s11465-015-0334-1

Abstract: propose an effective approach for reliability-based robust design optimization of vehicle components in Part

Keywords： vehicle axles and springs     reliability-based design optimization     reliability-based sensitivity analysis     multi-objective    

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Wavelet design for extracting weak fault feature based on lifting scheme

JIANG Hong-kai, WANG Zhong-sheng, HE Zheng-jia

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 199-203 doi: 10.1007/s11465-006-0009-z

Abstract: Weak fault features of mechanical signals are usually immersed in noisy signals.results confirm that the proposed method is better than other wavelet methods for extracting weak fault feature

Keywords： misalignment     imbalance     particular     position     mechanical    

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Informatization of Mechanical Product —Some Information Techniques for Mechanical Equipment

Qu Liangsheng,Hu Zhaoyong

Strategic Study of CAE 2004, Volume 6, Issue 11,   Pages 20-28

Abstract:

Mechanical engineering is the basic content in traditional industry in China.Especially, the development of mechanical equipment will confine the development of many fields in nationalengineering from the viewpoint of mechanical product, i. e. mechanical product informatization.some achievements in authors' research practice, the paper mainly analyzes information fusion and featureextraction during the process of mechanical product informatization.

Keywords： informatization     mechanical engineering     information fusion     feature extraction    

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Aseismic smart building isolation systems under multi-level earthquake excitations: Part II, energy-dissipation

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 297-306 doi: 10.1007/s11709-015-0308-8

Abstract: Several different model cases of the strategically isolated multi-story building structures utilizing

Keywords： smart building isolation     story and structural     energy-dissipation     damage assessment    

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Research on the Description Method of Process Planning Information Based on Ontology

Li Li,Hao Yongping,Shu Qilin,Zhang Jianfu

Strategic Study of CAE 2003, Volume 5, Issue 11,   Pages 75-78

Abstract:

A description method of part information and manufacturing resources information based on the ontologyThe attributes of part noumenon and feature noumenon are described.

Keywords： CAPP     ontology     part noumenon     feature noumenon     manufacturing resources noumenon     process planning resources    

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Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 133-150 doi: 10.1007/s11465-020-0610-6

Abstract: Surface accuracy directly affects the surface quality and performance of mechanical parts.Circular hole, especially spatial non-planar hole set is the typical feature and working surface of mechanicalFirst, the feature lines on the manifold mesh are extracted using the dihedral angle method and normalSecond, the optimal AM part build orientation is determined using the genetic algorithm to optimize thesurface accuracy of the circular holes by minimizing the weighted volumetric error of the part.

Keywords： surface accuracy optimization     multiple circular holes     additive manufacturing (AM)     part build orientation    

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Exploring the mechanical properties of steel- and polypropylene-reinforced ultra-high-performance concretethrough numerical analyses and experimental multi-target digital image correlation

Frontiers of Structural and Civil Engineering   Pages 1228-1248 doi: 10.1007/s11709-023-0931-8

Abstract: This study presents experimental and numerical investigations on the mechanical properties of ultra-high-performanceA method, namely multi-target digital image correlation (MT-DIC) was used to monitor the displacement

Keywords： UHPC     MT-DIC     flexural behavior     tensile behavior     steel fiber     polypropylene fiber    

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Multi-UAV collaborative system with a feature fast matching algorithm

Tian-miao Wang, Yi-cheng Zhang, Jian-hong Liang, Yang Chen, Chao-lei Wang,zycet@126.com

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 12,   Pages 1671-1814 doi: 10.1631/FITEE.2000047

Abstract: We present a real-time monocular system with a new distributed structure for multi-UAV tasks.characteristics in real time, we demonstrate an innovative algorithm to avoid catastrophic expansion of featureTo evaluate the performance, the algorithm is verified on the acknowledged multi-view stereo benchmark
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Adaptive construction of multiwavelet basis function and its applications for mechanical fault diagnosis

He Zhengjia,Sun Hailiang,Zi Yanyang

Strategic Study of CAE 2011, Volume 13, Issue 10,   Pages 83-92

Abstract:

The faults initiated in operation (i.e. incipient fault) with the obscure symptoms and weak features, are always contaminated by a large amount of background noise. Hence, fault diagnosis and prognosis of incipient faults have been the difficulty and focus of the research field. The paper studied the principle of inner product transform of dynamic signals and basis functions, proposed several construction methods of adaptive multiwavelet basis functions,and improved several multiwavelet denoising methods with neighborhood and local threshold. The typical engineering cases of the equipment of heavy oil catalytic cracking, the continuous casting and rolling mills, the air compressor, the electric locomotive and the transmission device of satellite comunication on ship were studied, and the results showed the effectiveness of enhancement of weak dynamic signals and features extraction of compound faults.

Keywords： mechanical fault diagnosis     principle of inner product transform     adaptive basis function     multiwaveletdenoising     fault feature extraction    

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Title Author Date Type Operation

Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Journal Article

Residual stresses in coating-based systems, part I: Mechanisms and analytical modeling

ZHANG Xiancheng, WU Yixiong, XU Binshi, WANG Haidou

Journal Article

Unknown fault detection for EGT multi-temperature signals based on self-supervised feature learning and

Journal Article

Aseismic smart building isolation systems under multi-level earthquake excitations: Part I, conceptual

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Journal Article

Reliability-based robust design optimization of vehicle components, Part I: Theory

Yimin ZHANG

Journal Article

Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Journal Article

Reliability-based robust design optimization of vehicle components, Part II: Case studies

Yimin ZHANG

Journal Article

Wavelet design for extracting weak fault feature based on lifting scheme

JIANG Hong-kai, WANG Zhong-sheng, HE Zheng-jia

Journal Article

Informatization of Mechanical Product —Some Information Techniques for Mechanical Equipment

Qu Liangsheng,Hu Zhaoyong

Journal Article

Aseismic smart building isolation systems under multi-level earthquake excitations: Part II, energy-dissipation

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Journal Article

Research on the Description Method of Process Planning Information Based on Ontology

Li Li,Hao Yongping,Shu Qilin,Zhang Jianfu

Journal Article

Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Journal Article

Exploring the mechanical properties of steel- and polypropylene-reinforced ultra-high-performance concretethrough numerical analyses and experimental multi-target digital image correlation

Journal Article

Multi-UAV collaborative system with a feature fast matching algorithm

Tian-miao Wang, Yi-cheng Zhang, Jian-hong Liang, Yang Chen, Chao-lei Wang,zycet@126.com

Journal Article

Adaptive construction of multiwavelet basis function and its applications for mechanical fault diagnosis

He Zhengjia,Sun Hailiang,Zi Yanyang

Journal Article