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学者姓名:梅雪松

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Investigation on a No Trial Weight Spray Online Dynamic Balancer SCIE
期刊论文 | 2018 | SHOCK AND VIBRATION
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Abstract :

In order to suppress the spindle vibration with high efficiency and high precision, a no without trial weight spray online balance method is proposed in this paper. By analyzing the relationship between the unbalanced excitation and the unbalanced response of the spindle, the relationship between the dynamic influence coefficient and the system model is studied. A high-speed spindle finite element analysis model was established, and the dynamic influence coefficient matrix was identified. A no trial weight spray online dynamic balancing system was developed, which has the advantages of without trial weight and high-precision loading. A new type of integrated balancing terminal that was formed using 3D printing technology was first proposed by our research group, and its advantages in various aspects are significantly higher than traditional assembly balanced terminals. The experimental verification of the without trial weight spray online dynamic balancing system was performed on a high-speed spindle test stand. Experiments show that the no trial weight spray online balancing method proposed in this paper can achieve high-efficiency and high-precision vibration suppression, greatly reducing balance time and cost of the spindle. At the same time, the online balance test also verified the reliability of the integrated balanced terminal.

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GB/T 7714 Yun, Xialun , Mei, Xuesong , Jiang, Gedong et al. Investigation on a No Trial Weight Spray Online Dynamic Balancer [J]. | SHOCK AND VIBRATION , 2018 .
MLA Yun, Xialun et al. "Investigation on a No Trial Weight Spray Online Dynamic Balancer" . | SHOCK AND VIBRATION (2018) .
APA Yun, Xialun , Mei, Xuesong , Jiang, Gedong , Hu, Zhenbang , Zhang, Zunhao . Investigation on a No Trial Weight Spray Online Dynamic Balancer . | SHOCK AND VIBRATION , 2018 .
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Rapid and low-cost laser synthesis of hierarchically porous graphene materials as high-performance electrodes for supercapacitors EI
期刊论文 | 2018 | Journal of Materials Science
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Abstract :

Development of 3D hierarchically porous graphene (HPG) with supercapacitor performances at low cost has remained a challenge in electrochemical devices. Recently, laser engraving technology has been proposed as a promising and very useful method to inscribe self-designed electrode array directly onto polymeric substrates by instantaneously converting the starting material into few-layer graphene. Here we show HPG fabrication on commercial bakelite resulting in porous graphene embedded in polymer surface using the high repetition nanosecond fiber laser engraving under nitrogen atmosphere. The results showed that the as-prepared HPG presents a combination of interconnected macro-, meso- and micropores with a multi-modal pore size distribution. The morphologies, microstructures and their properties of HPG films can be governed by the laser processing parameters. Moreover, the HPG-based supercapacitors show outstanding electrochemical performance with specific capacitance superior to other supercapacitors reported previously. The simple, rapid and low-cost approach proposed in this work has great potential in large-scale applications of electronic and energy storage devices. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.

Keyword :

Electrochemical devices Electrochemical performance Hierarchically porous Large-scale applications Laser processing parameters Nitrogen atmospheres Polymeric substrate Specific capacitance

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GB/T 7714 Wang, Fangcheng , Mei, Xuesong , Wang, Kedian et al. Rapid and low-cost laser synthesis of hierarchically porous graphene materials as high-performance electrodes for supercapacitors [J]. | Journal of Materials Science , 2018 .
MLA Wang, Fangcheng et al. "Rapid and low-cost laser synthesis of hierarchically porous graphene materials as high-performance electrodes for supercapacitors" . | Journal of Materials Science (2018) .
APA Wang, Fangcheng , Mei, Xuesong , Wang, Kedian , Dong, Xia , Gao, Meng , Zhai, Zhaoyang et al. Rapid and low-cost laser synthesis of hierarchically porous graphene materials as high-performance electrodes for supercapacitors . | Journal of Materials Science , 2018 .
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Design and Analysis of Mechanical-hydraulic Component to Harvest Energy from Human Walking EI
期刊论文 | 2018 , 54 (20) , 170-179 | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
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Considerable energy is generated by foot during human walking. Harvesting such energy is expected to solve the problem of energy supply for wearable electronic devices and even exoskeleton effectively. An energy recovery device is designed to achieve energy conversion into hydraulic power for the drive system of exoskeleton. In order to cover the shortage of the previous research without consideration of human walking dynamics, a 3 DOF dynamic model is established based on the gait analysis to formulate the single leg walking motion. The relationships between foot-ground interactions and time as well as foot attitude in a gait cycle are studied taking the adult as a reference. The forces acting on the ground by foot during walking and their vertical and horizontal components are obtained. The angle between the ground reaction force and the walking direction of pedestrian is measured by simulation. Given the energy distribution during walking, the recovery and storage device is proposed to convert the work done by foot into hydraulic oil energy by collecting the power induced by vertically applied foot force. It is estimated by computation that the hydraulic power of about 20 W can be captured from single foot averagely during human walking without load. © 2018 Journal of Mechanical Engineering.

Keyword :

Adams simulation Energy recovery Gait Human walking Hydraulic power

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GB/T 7714 Shi, Hu , Wang, Zheng , He, Bin et al. Design and Analysis of Mechanical-hydraulic Component to Harvest Energy from Human Walking [J]. | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering , 2018 , 54 (20) : 170-179 .
MLA Shi, Hu et al. "Design and Analysis of Mechanical-hydraulic Component to Harvest Energy from Human Walking" . | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 54 . 20 (2018) : 170-179 .
APA Shi, Hu , Wang, Zheng , He, Bin , Mei, Xuesong , Jia, Kun . Design and Analysis of Mechanical-hydraulic Component to Harvest Energy from Human Walking . | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering , 2018 , 54 (20) , 170-179 .
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Magneto-mechanical Behavior of Magnetic Shape Memory Alloy and Its Application in Hydraulic Valve Actuator EI
期刊论文 | 2018 , 54 (20) , 235-244 | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
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Magnetic shape memory alloy(MSMA) has recently emerged as a new type of multifunctional material exhibiting excellent performance as fast response and large strain. With a combination of the characteristics of ordinary smart materials and conventional shape memory alloy, it is qualified for high performance actuator. Constitution equations are derived based on the magnet-strain effect of MSMA, and temperature is introduced as an influential factor to modify the model. The present equations are improved to cover the shortage of inaccuracy in calculating the strain when the material is preloaded. Experiments are conducted to explore the magnetic field induced strain, and data are applied to establish nero-network based models to build the nonlinear relations between strain, stress and other related parameters. It is shown in the results that the energy density of MSMA is 70 kJ/m3 and energy conversion efficiency is 80%. Taking high speed on/off valve as an example, the characteristics of MSMA hydraulic valve actuator are considered. Valve design, magnetic field and fluid flow simulations are carried out. On analysis of dynamics of valve actuation system, the results show that the response frequency of the poppet valve system driven directly by MSMA can reach as high as 200 Hz, and the dynamic response time is nearly 5 ms. © 2018 Journal of Mechanical Engineering.

Keyword :

Dynamic performance High-speed on/off valve Hydraulic valves Magnetic field-induced strain Magnetic shape memory alloys Magneto-mechanical behavior Multi-functional materials Nonlinear relations

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GB/T 7714 Shi, Hu , He, Bin , Wang, Zheng et al. Magneto-mechanical Behavior of Magnetic Shape Memory Alloy and Its Application in Hydraulic Valve Actuator [J]. | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering , 2018 , 54 (20) : 235-244 .
MLA Shi, Hu et al. "Magneto-mechanical Behavior of Magnetic Shape Memory Alloy and Its Application in Hydraulic Valve Actuator" . | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 54 . 20 (2018) : 235-244 .
APA Shi, Hu , He, Bin , Wang, Zheng , Mei, Xuesong . Magneto-mechanical Behavior of Magnetic Shape Memory Alloy and Its Application in Hydraulic Valve Actuator . | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering , 2018 , 54 (20) , 235-244 .
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The Adaptive Fading Extended Kalman Filter SOC Estimation Method for Lithium-ion Batteries EI Scopus CPCI-S
会议论文 | 2018 , 145 , 357-362
SCOPUS Cited Count: 1
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Abstract :

© 2018 The Authors. Published by Elsevier Ltd. The adaptive fading extended Kalman filter (AFEKF) is proposed for the accuracy and convergent speed problem of state of charge (SOC) estimation. This filter algorithm combines the adaptive extended Kalman filter and fading extended Kalman filter, which solves the problem of uncertainty of system noise and over-reliance on old data. The equivalent circuit model is utilized and the variable forgetting factor recursive least square(VFFRLS) is adopted to identify the model parameters. Experimental test platform is established to validate the method. Results show that the method is able to effectively improve the convergent speed and accuracy of SOC estimation, and the SOC error is less than 2%.

Keyword :

lithium-ion battery state of charge the adaptive fading extended Kalman filter the adaptive Kalman filter

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GB/T 7714 Zhao, Yunfei , Xu, Jun , Wang, Xiao et al. The Adaptive Fading Extended Kalman Filter SOC Estimation Method for Lithium-ion Batteries [C] . 2018 : 357-362 .
MLA Zhao, Yunfei et al. "The Adaptive Fading Extended Kalman Filter SOC Estimation Method for Lithium-ion Batteries" . (2018) : 357-362 .
APA Zhao, Yunfei , Xu, Jun , Wang, Xiao , Mei, Xuesong . The Adaptive Fading Extended Kalman Filter SOC Estimation Method for Lithium-ion Batteries . (2018) : 357-362 .
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Thermal error compensation of high-speed spindle system based on a modified BP neural network EI SCIE Scopus
期刊论文 | 2017 , 89 (9-12) , 3071-3085 | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | IF: 2.601
WoS CC Cited Count: 7
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Abstract :

The accuracy, convergence performance, and robustness of the thermal error model based on traditional artificial neural networks (ANNs) are poor because the model is sensitive to the training data. To improve these performances, the genetic algorithm (GA) and particle swarm optimization (PSO) were used to optimize the parameters of ANNs with back propagation (BP) algorithm, such as the number of neurons in the hidden layer, initial weights, and thresholds. Moreover, the fuzzy cluster grouping and correlation analysis were combined to group and optimize the typical temperature variables to guarantee the robustness of the thermal error models based on BP, GA-BP, and PSO-BP neural networks. Then, thermal error compensation experiments were conducted on the spindle system of a precision jig borer, and the machining accuracy was increased from 67 to 78 % for the GA-BP model and 89 % for the PSO-BP model, respectively. To validate the effectiveness of the thermal error measurement, modeling, and compensation methods, the test samples were machined and the surface quality of the machined parts was measured. By measuring the dimension error and the surface quality of the machined parts, the results showed that the machining error can be reduced and that the surface quality can be improved by the thermal error compensation. Moreover, the accuracy, convergence performance, and robustness of the thermal error model based on the traditional BP neural network can be improved greatly by GA and PSO.

Keyword :

Particle swarm optimization Machine tools High-speed spindle system Thermal error compensation Genetic algorithm Artificial neural network

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GB/T 7714 Ma, Chi , Zhao, Liang , Mei, Xuesong et al. Thermal error compensation of high-speed spindle system based on a modified BP neural network [J]. | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY , 2017 , 89 (9-12) : 3071-3085 .
MLA Ma, Chi et al. "Thermal error compensation of high-speed spindle system based on a modified BP neural network" . | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 89 . 9-12 (2017) : 3071-3085 .
APA Ma, Chi , Zhao, Liang , Mei, Xuesong , Shi, Hu , Yang, Jun . Thermal error compensation of high-speed spindle system based on a modified BP neural network . | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY , 2017 , 89 (9-12) , 3071-3085 .
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A Fuzzy Adaptive Controller for Constant Cutting Torque in High-Performance Gear Hobbing Process EI CPCI-S Scopus
会议论文 | 2017 , 1725-1730 | IEEE International Conference on Advanced Intelligent Mechatronics (AIM)
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Constant torque control in machining processes reduces the cycling time and energy consumption, while protecting the machine tool and cutting tool at the same time. This paper presents an adaptive fuzzy control system for optimizing the cutting torque in gear hobbing process. And during the machining process, the input and output scaling factors of the fuzzy controller can also be adjusted automatically according to the control effect. Therefore, this control system can achieve robust adaptive control of the spindle torque by regulating the feed rate in gear hobbing process with little intervention of humans. As a result, the fluctuation of the cutting torque in gear hobbing process is reduced and the machining efficiency is improved significantly.

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GB/T 7714 Liu, Xing , Zhao, Fei , Mei, Xuesong . A Fuzzy Adaptive Controller for Constant Cutting Torque in High-Performance Gear Hobbing Process [C] . 2017 : 1725-1730 .
MLA Liu, Xing et al. "A Fuzzy Adaptive Controller for Constant Cutting Torque in High-Performance Gear Hobbing Process" . (2017) : 1725-1730 .
APA Liu, Xing , Zhao, Fei , Mei, Xuesong . A Fuzzy Adaptive Controller for Constant Cutting Torque in High-Performance Gear Hobbing Process . (2017) : 1725-1730 .
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An Energy Harvesting Mechanism Transfer Human Walking Energy to Hydraulic Power EI CPCI-S Scopus
会议论文 | 2017 , 312-316 | 24th International Conference on Mechatronics and Machine Vision in Practice (M2VIP)
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Abstract :

In order to solve the problem of energy supply for wearable and portable electronic equipment and exoskeleton, a direct energy recovery mechanism based on hydraulic transmission principle was designed. Firstly, according to the particularity of human body structure and function, establish a theoretical model can reflect the state of human body by Lagrange modeling method. Based on the established theoretical model, the rotation angle of ankle joint, knee joint and hip joint in walking process was obtained by ADAMS simulation analysis. The magnitude of the force of the ground support in the horizontal and vertical directions is obtained, and then the change law of the angle between the ground supporting force and the walking direction of the pedestrian during the walk is obtained. According to the law of human walking, the recovery mechanism is designed and the energy recovery effect is simulated. The recovery mechanism designed in this paper can output energy of 10 watts, and has a good recovery effect.

Keyword :

Lagrange modeling method ADAMS simulation Energy recovery Hydraulic transmission

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GB/T 7714 Shi, Hu , Wang, Zheng , Wang, Haitao et al. An Energy Harvesting Mechanism Transfer Human Walking Energy to Hydraulic Power [C] . 2017 : 312-316 .
MLA Shi, Hu et al. "An Energy Harvesting Mechanism Transfer Human Walking Energy to Hydraulic Power" . (2017) : 312-316 .
APA Shi, Hu , Wang, Zheng , Wang, Haitao , Mei, Xuesong . An Energy Harvesting Mechanism Transfer Human Walking Energy to Hydraulic Power . (2017) : 312-316 .
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Surface ablation and threshold determination of AlCu4SiMg aluminum alloy in picosecond pulsed laser micromachining EI SCIE Scopus
期刊论文 | 2017 , 94 , 267-278 | OPTICS AND LASER TECHNOLOGY | IF: 2.503
WoS CC Cited Count: 2 SCOPUS Cited Count: 2
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Abstract :

Interaction of an ultrafast pulsed laser with material surface has become a research hotspot in recent years. Picosecond pulsed laser micromachining of AlCu4SiMg aluminum alloy and determination of the ablation threshold are the main research directions, which have vitally important theoretical significance and application value. The ablation characteristics of aluminum alloy under different focusing characteristics and energies were experimentally investigated with picosecond ultrafast laser pulses. The different ablation areas of laser Gaussian beam were divided based on ablation threshold, morphological characteristics, and interaction mechanism. The surface morphologies and feature sizes, including ablation width (i.e. diameter), ablation depth, ablation depth-to-width ratio, ablation area, ablation volume, and single pulse ablation rate, of the ablation craters were studied; and the variation of their ablation distributions with laser energy density were analyzed. The results showed that the irradiated surface morphologies of aluminum alloy under the focal lengths of 100 and 150 mm were better, and the ablation width increased with the increase of focal length; however, the ablation depth decreased clearly. More distinct morphological characteristics at high energy and better ablation quality at low energy were exhibited by ablation crater surface. Ablation area could be divided into ablation, melt, redeposition, phase-transformation, and modification regions, and the entire regions were dominated by multiphoton ionization and avalanche ionization. The ablation feature sizes, increasing monotonically in laser energy density, exhibited approximately linear dependence on the energy density at low energy-density. When the energy density reached a certain critical value, the increasing extent decelerated gradually, and tended increasingly towards saturation. According to the linear dependence of laser energy density on the ablation crater area, the average ablation threshold of AlCu4SiMg aluminum alloy with a picosecond pulsed laser was determined to be about 0.122 J cm(-2) at a repetition rate of 1 kHz under the number of pulses of 1000 and 2000. More number of pulses resulted in smaller ablation threshold, and the ablation threshold decreased at different degrees with the increase of low repetition rate. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword :

Ablation area Aluminum alloy Picosecond pulsed laser Micromachining Ablation threshold Ablation characteristics

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GB/T 7714 Zheng, Buxiang , Jiang, Gedong , Wang, Wenjun et al. Surface ablation and threshold determination of AlCu4SiMg aluminum alloy in picosecond pulsed laser micromachining [J]. | OPTICS AND LASER TECHNOLOGY , 2017 , 94 : 267-278 .
MLA Zheng, Buxiang et al. "Surface ablation and threshold determination of AlCu4SiMg aluminum alloy in picosecond pulsed laser micromachining" . | OPTICS AND LASER TECHNOLOGY 94 (2017) : 267-278 .
APA Zheng, Buxiang , Jiang, Gedong , Wang, Wenjun , Mei, Xuesong , Wang, Fangcheng . Surface ablation and threshold determination of AlCu4SiMg aluminum alloy in picosecond pulsed laser micromachining . | OPTICS AND LASER TECHNOLOGY , 2017 , 94 , 267-278 .
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Formation of hierarchical porous graphene films with defects using a nanosecond laser on polyimide sheet EI SCIE Scopus
期刊论文 | 2017 , 419 , 893-900 | APPLIED SURFACE SCIENCE | IF: 4.439
WoS CC Cited Count: 8 SCOPUS Cited Count: 10
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Abstract :

The cost of effective preparation of graphene-based nanomaterials is a challenge in high-performance flexible electrodes. We demonstrated the formation of hierarchical porous graphene (HPG) films with defects from polyimide (PI) sheets using a high repetition rate nanosecond fiber laser. The honeycomb structure with mesopores and macropores can be rapidly induced on the polyimide by the localized focused laser beam in air atmosphere. Employing laser direct writing method, the one-step synthesis and patterning of conductive HPG films were achieved directly on the surface of polyimide sheets. The results show that the unique honeycomb porous structure on HPG film is composed of few-layer graphene or graphene stacks. The lattice structure of graphene nanoplatelets contains the Stone-Wales defects. Furthermore, there are a lot of small-size graphene nanoplatelets on the surface of HPG films with high content of edge defects. These two defects can not only enhance the adsorption without compromising on high diffusivity of ions, but also contribute to the infiltration and flow of electrolyte on the surface of electrode. The proposed one-step laser direct writing technique with highly valuable suitable for developing large-scale fabrication of conductive HPG based flexible electrodes at low-cost. (C) 2017 Elsevier B.V. All rights reserved.

Keyword :

Polyimide Hierarchical porous graphene Defects Laser induced processing

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GB/T 7714 Wang, Fangcheng , Wang, Kedian , Dong, Xia et al. Formation of hierarchical porous graphene films with defects using a nanosecond laser on polyimide sheet [J]. | APPLIED SURFACE SCIENCE , 2017 , 419 : 893-900 .
MLA Wang, Fangcheng et al. "Formation of hierarchical porous graphene films with defects using a nanosecond laser on polyimide sheet" . | APPLIED SURFACE SCIENCE 419 (2017) : 893-900 .
APA Wang, Fangcheng , Wang, Kedian , Dong, Xia , Mei, Xuesong , Zhai, Zhaoyang , Zheng, Buxiang et al. Formation of hierarchical porous graphene films with defects using a nanosecond laser on polyimide sheet . | APPLIED SURFACE SCIENCE , 2017 , 419 , 893-900 .
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