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< Page ,Total 28 >
Multi-Objective Individualized-Instruction Teaching-Learning-Based Optimization Algorithm EI SCIE Scopus
期刊论文 | 2018 , 62 , 288-314 | APPLIED SOFT COMPUTING
WoS CC Cited Count: 2 SCOPUS Cited Count: 5
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Abstract :

Traditional multi-objective evolutionary algorithms (MOEAs) adopt selection and reproduction operators to find approximate solutions for multi-objective optimization problems (MOPs). The Pareto-dominancebased method is an important branch of MOEA research which exploits dominance relations information. To use dominance relations information more efficiently, this paper proposes an individualized instruction mechanism combined with the non-dominated sorting concept and the teaching-learning process of teaching-learning-based optimization (TLBO). This algorithm, with its individualized instruction mechanism (INM-TLBO), places greater emphasis on the guiding role of the non-dominated solution. INM-TLBO designates specific teachers or interactive objects to help learners improve in the individualized teaching learning process and adopts an external archive to preserve the best solution found. In addition, the INM-TLBO needs only generic control parameters as input, such as population size, an epsilon value for the external archive, and a stop criterion (maximal generation or function evaluation). The performance of INM-TLBO was evaluated on three test problem sets, including twelve extensively used unconstrained test problems, six truly disconnected test problems, and ten complex continuous unconstrained optimization test problems originally proposed for the Congress on Evolutionary Computation 2009 (CEC 2009) competition. The numerical results are compared with those of other state-of-the-art algorithms and show that INM-TLBO has good convergence and high robustness on these test problems. (C) 2017 Elsevier B.V. All rights reserved.

Keyword :

epsilon-dominance Teaching-learning-based optimization Multi-objective optimization Non-dominated sorting

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GB/T 7714 Yu, Dong , Hong, Jun , Zhang, Jinhua et al. Multi-Objective Individualized-Instruction Teaching-Learning-Based Optimization Algorithm [J]. | APPLIED SOFT COMPUTING , 2018 , 62 : 288-314 .
MLA Yu, Dong et al. "Multi-Objective Individualized-Instruction Teaching-Learning-Based Optimization Algorithm" . | APPLIED SOFT COMPUTING 62 (2018) : 288-314 .
APA Yu, Dong , Hong, Jun , Zhang, Jinhua , Niu, Qingbo . Multi-Objective Individualized-Instruction Teaching-Learning-Based Optimization Algorithm . | APPLIED SOFT COMPUTING , 2018 , 62 , 288-314 .
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A Method of Accurate Bone Tunnel Placement for Anterior Cruciate Ligament Reconstruction Based on 3-Dimensional Printing Technology: A Cadaveric Study SCIE PubMed Scopus
期刊论文 | 2018 , 34 (2) , 546-556 | ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
WoS CC Cited Count: 2 SCOPUS Cited Count: 4
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Abstract :

Purpose: To explore a method of bone tunnel placement for anterior cruciate ligament (ACL) reconstruction based on 3-dimensional (3D) printing technology and to assess its accuracy. Methods: Twenty human cadaveric knees were scanned by thin-layer computed tomography (CT). To obtain data on bones used to establish a knee joint model by computer software, customized bone anchors were installed before CT. The reference point was determined at the femoral and tibial footprint areas of the ACL. The site and direction of the bone tunnels of the femur and tibia were designed and calibrated on the knee joint model according to the reference point. The resin template was designed and printed by 3D printing. Placement of the bone tunnels was accomplished by use of templates, and the cadaveric knees were scanned again to compare the concordance of the internal opening of the bone tunnels and reference points. Results: The twenty 3D printing templates were designed and printed successfully. CT data analysis between the planned and actual drilled tunnel positions showed mean deviations of 0.57 mm (range, 0-1.5 mm; standard deviation, 0.42 mm) at the femur and 0.58 mm (range, 0-1.5mm; standard deviation, 0.47 mm) at the tibia. Conclusions: The accuracy of bone tunnel placement for ACL reconstruction in cadaveric adult knees based on 3D printing technology is high.

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GB/T 7714 Ni, Jianlong , Li, Dichen , Mao, Mao et al. A Method of Accurate Bone Tunnel Placement for Anterior Cruciate Ligament Reconstruction Based on 3-Dimensional Printing Technology: A Cadaveric Study [J]. | ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY , 2018 , 34 (2) : 546-556 .
MLA Ni, Jianlong et al. "A Method of Accurate Bone Tunnel Placement for Anterior Cruciate Ligament Reconstruction Based on 3-Dimensional Printing Technology: A Cadaveric Study" . | ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY 34 . 2 (2018) : 546-556 .
APA Ni, Jianlong , Li, Dichen , Mao, Mao , Dang, Xiaoqian , Wang, Kunzheng , He, Jiankang et al. A Method of Accurate Bone Tunnel Placement for Anterior Cruciate Ligament Reconstruction Based on 3-Dimensional Printing Technology: A Cadaveric Study . | ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY , 2018 , 34 (2) , 546-556 .
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A Discrete Element Method of Spring-Connecting Rigid for Numerical Simulation of Cracks Propagation EI CSCD Scopus PKU
期刊论文 | 2018 , 52 (4) , 48-54 | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
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Abstract :

A discrete element method considering the force acting effect on multilayer neighbor elements is proposed to solve the problem that the crack growth path is affected greatly by the discrete elements assembling form. The spring stiffness parameters and fracture criterion of the discrete element in the algorithms of one-layer adjacent neighbor search, two-layer adjacent neighbor search and three-layer adjacent neighbor search are derived using the conservation law of strain energy. The crack growth paths of Kalthoff and Winkler's plate dynamic shear test are simulated using different-layer adjacent neighbor searching algorithms. Simulation results show that the effect of the discrete elements assembling form on the crack growth path declines when the layer of adjacent neighbor search increases. The propagation process of crack is less influenced by the elements assembling form in three-layer neighbor searching algorithm, and is in good agreement with the experimental result. The difference of the crack propagating time between two discrete elements assembling forms is only 2 μs. It is concluded that the discrete element method with the three-layer adjacent neighbor searching algorithm is a useful tool for simulating the fracture process. © 2018, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.

Keyword :

Cracks propagation Discrete elements Fracture criteria Fracture process Neighbor searches Neighbor searching Propagation process Spring stiffness

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GB/T 7714 Jiang, Yifei , Zhang, Jun , He, Yong et al. A Discrete Element Method of Spring-Connecting Rigid for Numerical Simulation of Cracks Propagation [J]. | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University , 2018 , 52 (4) : 48-54 .
MLA Jiang, Yifei et al. "A Discrete Element Method of Spring-Connecting Rigid for Numerical Simulation of Cracks Propagation" . | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University 52 . 4 (2018) : 48-54 .
APA Jiang, Yifei , Zhang, Jun , He, Yong , Liu, Zhechao , Zhao, Wanhua . A Discrete Element Method of Spring-Connecting Rigid for Numerical Simulation of Cracks Propagation . | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University , 2018 , 52 (4) , 48-54 .
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A finite element method of modelling and designing of an ACCC conductor EI Scopus CSSCI-E
会议论文 | 2018 , 153 | 4th International Conference on Mechatronics and Mechanical Engineering, ICMME 2017
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Abstract :

The ultimate breaking strength of conductors always plays a vital role in the long-Term safe operation of transmission lines and it should be carefully considered in the designing of a conductor. While limited literature has been released regarding the strength calculation of ACCC (Aluminum Conductor Composite Core) conductors. In this study, a finite element method based on real conductor samples is proposed to evaluate the strength of the ACCC conductor, and investigate on how diameters (or sectional areas) of the composite core and aluminum strands influence the conductors' breaking strength, thereby helping engineers design a proper diameter of an ACCC conductor. The finite element analysis shows that increasing the sectional area of the composite core leads to a larger breaking strength than increasing an equal sectional areas of aluminum strands, which is in line with the tensile experimental results. In specific, the relative errors between the simulated breaking strength and the experimental results are as low as less than 3%. Therefore, the finite element method presented in this work, to some extent, fills in the blank of strength calculation for ACCC conductors, and in practical terms, it could serves as guidelines for conductor-design engineers. © 2018 The Authors, published by EDP Sciences.

Keyword :

Aluminum conductor composite cores Breaking strength Conductor design Engineers design Relative errors Safe operation Sectional areas Strength calculation

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GB/T 7714 Yan, Youcan , Duan, Yugang . A finite element method of modelling and designing of an ACCC conductor [C] . 2018 .
MLA Yan, Youcan et al. "A finite element method of modelling and designing of an ACCC conductor" . (2018) .
APA Yan, Youcan , Duan, Yugang . A finite element method of modelling and designing of an ACCC conductor . (2018) .
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Key technologies of finite element modeling of machine tools based on ANSYS platform EI
会议论文 | 2018 , 175 | 2018 International Forum on Construction, Aviation and Environmental Engineering-Internet of Things, IFCAE-IOT 2018
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Abstract :

In order to establish the joint interface elements more quickly, and to analyze the dynamic characteristics of machine tools under different states (such as headstock at different position), the CAD model of machine tool must be divided effectively, so that the hexahedron elements with specified size can be generated in the area of the joint interfaces, so that the nodes on the joint surfaces can be coincident. Using APDL technology, the linear spring-damped elements are quickly established on the fixed joint (bolt joint interface between the bed and base) and the moving joint (guideway-slider, screw-nut). The experimental and simulation results show that the method is effective.It has considerable accuracy, and can greatly speed up the machine tool modeling, especially the processing speed of the joint interfaces. © The Authors, published by EDP Sciences 2018.

Keyword :

ANSYS platform CAD modeling Dynamic characteristics Joint interfaces Joint surfaces Key technologies Linear spring Processing speed

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GB/T 7714 Liu, Haitao , Wei, Wenming . Key technologies of finite element modeling of machine tools based on ANSYS platform [C] . 2018 .
MLA Liu, Haitao et al. "Key technologies of finite element modeling of machine tools based on ANSYS platform" . (2018) .
APA Liu, Haitao , Wei, Wenming . Key technologies of finite element modeling of machine tools based on ANSYS platform . (2018) .
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Intraocular pressure control of a novel glaucoma drainage device - in vitro and in vivo studies SCIE PubMed Scopus
期刊论文 | 2017 , 10 (9) , 1354-1360 | INTERNATIONAL JOURNAL OF OPHTHALMOLOGY | IF: 1.166
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Abstract :

AIM: To evaluate the intraocular pressure (IOP) control of an artificial trabeculum drainage system (ATDS), a newly designed glaucoma drainage device, and postoperative complications in normal rabbit eyes. METHODS: Pressure drops in air and fluid of 30 ATDS were measured after being connected to a closed manometric system. Twenty of them were then chosen and implanted randomly into the eyes of 20 rabbits. Postoperative slit-lamp, gonioscopic examination and IOP measurements were recorded periodically. Ultrasound biomicroscopy and B-scan ultrasonography were also used to observe the complications. Eyes were enucleated on day 60. RESULTS: Pressure drops of 4.6-9.4 mm Hg were obtained at physiological aqueous flow rates in the tests in vitro. The average postoperative IOP of the experimental eyes (11.6-12.8 mm Hg) was lower than the controls significantly (P<0.05) at each time point. Complications of hemorrhage (n=1), cellulosic exudation (two cases) and local iris congestion (two cases) were observed. The lumina of the devices were devoid of obstructions in all specimens examined and a thin fibrous capsule was found around the endplate. CONCLUSION: ATDS reduce IOP effectively. However, further studies on the structure are needed to reduce complications.

Keyword :

drainage device intraocular pressure outflow rabbit aqueous humor

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GB/T 7714 Cui, Li-Jun , Li, Di-Chen , Liu, Jian et al. Intraocular pressure control of a novel glaucoma drainage device - in vitro and in vivo studies [J]. | INTERNATIONAL JOURNAL OF OPHTHALMOLOGY , 2017 , 10 (9) : 1354-1360 .
MLA Cui, Li-Jun et al. "Intraocular pressure control of a novel glaucoma drainage device - in vitro and in vivo studies" . | INTERNATIONAL JOURNAL OF OPHTHALMOLOGY 10 . 9 (2017) : 1354-1360 .
APA Cui, Li-Jun , Li, Di-Chen , Liu, Jian , Zhang, Lei , Xing, Yao . Intraocular pressure control of a novel glaucoma drainage device - in vitro and in vivo studies . | INTERNATIONAL JOURNAL OF OPHTHALMOLOGY , 2017 , 10 (9) , 1354-1360 .
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Modeling method on motive axes error transfer chain for machine tool of arbitrary topological structure EI Scopus CSCD PKU
期刊论文 | 2016 , 52 (21) , 130-137 | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
SCOPUS Cited Count: 3
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Abstract :

In space geometric error modeling for machine tool of arbitrary structure, the motive axes error transfer chain must be obtained, which is used to finish error modeling based on differential transformation for machine tool of arbitrary structure. By using the theory of multi-body system, the topological structure and low body array for machine tool of arbitrary structure is established. Then by making use of the topological structure and the low body array of machine tool, the concepts of relative motion matrix of supporting parts connected by motive axes of machine tool and connected matrix of supporting parts are proposed and the mathematical model of acquiring error transfer chain of motive axes is built. This mathematical model combines the low body array describing the topological structure of machine tool and the relationship of relative motion of supporting parts of machine tool, which gives the modeling method on acquiring the motive axes error transfer chain of arbitrary machine tool. Additionally, error transfer chain of motive axes obtained by this modeling method is used in space geometric error modeling for machine tool based on differential transformation to realize the space geometric error modeling for machine tool of arbitrary structure. The modeling method's validity of motive axes error transfer chain is verified by examples of five-axis vertical machining center. © 2016 Journal of Mechanical Engineering.

Keyword :

Arbitrary structures Differential transformation Geometric errors Multi Body Systems Relative motion Theory of multi-body system Topological structure Vertical machining centers

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GB/T 7714 Zhao, Qiangqiang , Hong, Jun , Liu, Zhigang et al. Modeling method on motive axes error transfer chain for machine tool of arbitrary topological structure [J]. | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering , 2016 , 52 (21) : 130-137 .
MLA Zhao, Qiangqiang et al. "Modeling method on motive axes error transfer chain for machine tool of arbitrary topological structure" . | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 52 . 21 (2016) : 130-137 .
APA Zhao, Qiangqiang , Hong, Jun , Liu, Zhigang , Guo, Junkang . Modeling method on motive axes error transfer chain for machine tool of arbitrary topological structure . | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering , 2016 , 52 (21) , 130-137 .
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Free Vibration of the Damping Beam Using Co-simulation Method Based on the MFT SCIE
期刊论文 | 2015 , 20 (4) , 251-257 | INTERNATIONAL JOURNAL OF ACOUSTICS AND VIBRATION | IF: 0.283
WoS CC Cited Count: 3
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Abstract :

The particle damping technique has been in development for several decades, and has been used successfully in many fields. However, it is difficult to predict its damping characteristics due to complex collisions and friction mechanisms, as well as high non-linear damping characteristics in dense particles. The focus of these current main achievements is centralized on the equivalent single degree of freedom (SDOF) system under free and forced vibration. In this paper, a brand new co-simulation approach for the continuum structure system based on the multiphase flow theory (MFT) of gas solid is developed by the COMSOL Multiphysics live link for MATLAB. A simple continuum structure system, (i.e., the cantilever particle damped beam) is made as an experiment. It is further shown that the damping capacity of a cantilever beam depends not only on the exerted location of the particle damper, but also the quantity of the filling. An experimental verification is performed, and an acceptable accordance is achieved between the theoretical results and the experimental data. It can be shown that the theoretical work in this paper is valid. The co-simulation method simplifies the complicated modelling problem, and offers the possibility to analyse the vibro-acoustic response prediction for complicated particle-damping composite structures.

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GB/T 7714 Wang, D. Q. , Wu, C. J. , Yang, R. C. . Free Vibration of the Damping Beam Using Co-simulation Method Based on the MFT [J]. | INTERNATIONAL JOURNAL OF ACOUSTICS AND VIBRATION , 2015 , 20 (4) : 251-257 .
MLA Wang, D. Q. et al. "Free Vibration of the Damping Beam Using Co-simulation Method Based on the MFT" . | INTERNATIONAL JOURNAL OF ACOUSTICS AND VIBRATION 20 . 4 (2015) : 251-257 .
APA Wang, D. Q. , Wu, C. J. , Yang, R. C. . Free Vibration of the Damping Beam Using Co-simulation Method Based on the MFT . | INTERNATIONAL JOURNAL OF ACOUSTICS AND VIBRATION , 2015 , 20 (4) , 251-257 .
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Prediction for Outlet Noise of Rolling Piston Comperssor EI CPCI-S Scopus
会议论文 | 2015 , 35 | 4th International Conference on Mechanics and Control Engineering (ICMCE)
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Abstract :

An acoustic wave equation with considering small perturbation is presented first by use of the fluidic mechanics and aerodynamics, then a theoretical model for predicting the outlet noise of rolling piston compressors is investigated, and the sound pressure and sound power of the outlet noise are formulated based on the acoustic wave equation. The experimental data and simulation results for the outlet noise with different rotation velocities have been compared with the discrepancy less than 2.6%, which verifies the approach presented in this paper.

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GB/T 7714 Zhang, Tieshan . Prediction for Outlet Noise of Rolling Piston Comperssor [C] . 2015 .
MLA Zhang, Tieshan . "Prediction for Outlet Noise of Rolling Piston Comperssor" . (2015) .
APA Zhang, Tieshan . Prediction for Outlet Noise of Rolling Piston Comperssor . (2015) .
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Periprosthetic Femoral Fracture - A Biomechanical Comparison Between Vancouver Type B1 and B2 Fixation Methods SCIE PubMed Scopus
期刊论文 | 2014 , 29 (3) , 495-500 | JOURNAL OF ARTHROPLASTY | IF: 2.666
WoS CC Cited Count: 18 SCOPUS Cited Count: 22
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Abstract :

Current clinical data suggest a higher failure rate for internal fixation in Vancouver type B1 periprosthetic femoral fracture (PFF) fixations compared to long stem revision in B2 fractures. The aim of this study was to compare the biomechanical performance of several fixations in the aforementioned fractures. Finite element models of B1 and B2 fixations, previously corroborated against in vitro experimental models, were compared. The results indicated that in treatment of B1 fractures, a single locking plate can be without complications provided partial weight bearing is followed. In case of B2 fractures, long stem revision and bypassing the fracture gap by two femoral diameters are recommended. Considering the risk of single plate failure, long stem revision could be considered in all comminuted B1 and B2 fractures. (C) 2014 Elsevier Inc. All rights reserved.

Keyword :

strain stiffness Vancouver type B fracture finite element method

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GB/T 7714 Moazen, Mehran , Mak, Jonathan H. , Etchels, Lee W. et al. Periprosthetic Femoral Fracture - A Biomechanical Comparison Between Vancouver Type B1 and B2 Fixation Methods [J]. | JOURNAL OF ARTHROPLASTY , 2014 , 29 (3) : 495-500 .
MLA Moazen, Mehran et al. "Periprosthetic Femoral Fracture - A Biomechanical Comparison Between Vancouver Type B1 and B2 Fixation Methods" . | JOURNAL OF ARTHROPLASTY 29 . 3 (2014) : 495-500 .
APA Moazen, Mehran , Mak, Jonathan H. , Etchels, Lee W. , Jin, Zhongmin , Wilcox, Ruth K. , Jones, Alison C. et al. Periprosthetic Femoral Fracture - A Biomechanical Comparison Between Vancouver Type B1 and B2 Fixation Methods . | JOURNAL OF ARTHROPLASTY , 2014 , 29 (3) , 495-500 .
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