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检索条件"机构=Hubei Key Laboratory of Advanced Technology of Automobile Components"

共 504 条记录，以下是131-140 订阅

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Simulation and performance evaluation of hydraulic transmission electromagnetic energy-regenerative active suspension

Simulation and performance evaluation of hydraulic transmiss...

引用

GCIS, WRI Global Congress on Intelligent Systems

作者： Xu, Lin Yang, Bo Guo, Xuexun Yan, Jun School of Automobile Engineering Wuhan University of Technology Hubei Key Laboratory of Advanced Design and Manufacturing Technology of Automotive Parts Wuhan China

ISBN: (纸本)9780769543048

A new shock absorber with the combined mechanical-electromagnetic-hydraulic structure is proposed to recycle the energy dissipated by shock absorber in the process of driving. The suspension system built on the new shock absorber is generally called hydraulic transmission electromagnetic energy-regenerative suspension. This paper presents the working theories of the hydraulic transmission electromagnetic energy-regenerative suspension, and also builds a kinetics simulation model by applying the interdisciplinary soft ware AMESim. Based on the results of the simulation, the paper makes a comparison between the hydraulic transmission electromagnetic energy-regenerative suspension and the passive suspension, and the results reveal that the comprehensive performance of the former is superior to that of the latter, which proves the theoretical feasibilities of the energy-regenerative suspension of this structure to improve the ride comfort and the fuel economy. © 2010 IEEE.

关键词： Shock absorbers

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Study on Side Collision of Battery Boxes Based on HyperWorks 5

Study on Side Collision of Battery Boxes Based on HyperWorks

引用

2021 5th International Conference on Electrical, Mechanical and Computer Engineering, ICEMCE 2021

作者： Qiao, Weigao Zhang, Zhanxi Lu, Dong Yu, Lei School of Automotive Engineering Wuhan University of Technology Hubei Wuhan430070 China Hubei Key Laboratory of Advanced Technology for Automotive Components Hubei Wuhan430070 China

To effectively improve the safety of battery boxes in side collision of electric vehicles, two measures are proposed: Firstly spread the boss evenly around the battery box. Secondly the upper and lower parts of the battery box are matched with the convex heads and groove structure. The finite element models of the battery boxes before and after the optimization, the vehicle and the movable barrier are established in this paper. According to the collision regulations, the side collision simulation of the vehicle body is carried out. The changes of the stress, deformation and lateral acceleration of the battery boxes are analyzed. The effectiveness of the measures is verified. The extrusion models of the battery boxes are established. The deformation and the changes of the internal energy of the battery boxes are analyzed. The effectiveness of the measures is verified again. © 2021 Institute of Physics Publishing. All rights reserved.

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Facile synthesis of NiCo2O4/rGO nanowire array electrodes for supercapacitor cathodes 2

Facile synthesis of NiCo2O4/rGO nanowire array electrodes fo...

引用

2023 2nd International Conference on Energy and Electrical Power Systems, ICEEPS 2023

作者： Dong, Chen Wei, Mingrui Yang, Lan Liu, Yihui Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan430070 China

In this study, NiCo2O4/rGO nanowire arrays (NWAs) were effectively synthesized, and these arrays were subsequently employed as components in supercapacitors. The phase structure of the materials was analyzed using X-ray diffraction spectroscopy, and the morphology of the materials was observed by scanning and transmission electron microscopy. By comparing with NiCo2O4 nanowire arrays without graphene oxide, it was found that the surface of NiCo2O4 arrays grown directly on nickel foams had a large number of accumulations, whereas the surface agglomerations of NiCo2O4/rGO nanowire arrays complexed with reduced graphene oxide were significantly improved. The NiCo2O4/rGO electrode with improved agglomeration phenomenon shows better performance. The specific capacitance of NiCo2O4/rGO NWAs is 2311 F·g-1 at 1 A·g-1 and remains at 1211 F·g-1 even at 50 A·g-1. In addition, the capacitance retention of this material could reach 83.5 % after 3,000 cycles at 10 A·g-1, demonstrating excellent multiplicative performance and cycling stability. © Published under licence by IOP Publishing Ltd.

关键词： Nickel compounds

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Study on Effect of Ultrasonic Vibration on Adhesive-film Bonding of Al/CFRP Alloy Joints 9

Study on Effect of Ultrasonic Vibration on Adhesive-film Bon...

引用

2023 9th International Conference on Applied Materials and Manufacturing technology, ICAMMT 2023

作者： Wang, Hui Zhang, Chenkuo Chen, Yizhe Yang, Liu Li, Jianting Cao, Min Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China Hubei Longzhong Laboratory Hubei Xiangyang441000 China Guangrui Group Hubei Xiangyang441000 China

The adhesive film is solid at room temperature, and it is difficult to ensure the adhesion of the adhesive film to the adhered plate during the bonding process, resulting in poor bonding quality and difficult bonding quality control. Due to the need to solve this problem, this study proposed ultrasonic to improve the bonding quality. The ultrasonic mechanism to strengthen the adhesive-film bonded of AL/CFRP (carbon fiber reinforced composites) joints was investigated. The ultrasonic vibration was applied to the bonding area after the adhesive film was attached. A double-lap shear plate test revealed a 59.6% increase in bond strength and a 34.2% increase in bond quality stability. By analyzing the temperature and viscosity of the adhesive film after ultrasonic and observing the surface morphology of the cured joint, it was found that ultrasonic could reduce the film viscosity and improve the adhesive film fluidity. At the same time, the adhesive film was promoted to fill the irregular micro pits on the adherend surface, enhancing the mechanical anchoring effect between the adhesive and the adhered plate and thus improving the bonding quality. © Published under licence by IOP Publishing Ltd.

关键词： Fiber reinforced plastics

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Identification and recovery path planning of Marine garbage patch based on Machine vision

Identification and recovery path planning of Marine garbage ...

引用

2021 International Conference on Electronic Materials and Information Engineering, EMIE 2021

作者： Zhang, Wenbin Zhao, Sheng Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan China Wuhan University of Technology Wuhan China

At present, the environmental problems in the water are becoming more and more prominent, and many teams are working on the research of the automation of garbage collection at sea. In order to a ready-made sea on the garbage recycling equipment automation, intelligent recognition for all white plastic and in identifying regional planning the path of the recycling of recycling equipment, aiming at different times during the day under the sea lighting situation, puts forward a visual processing and multi-step sea boundary identification method. After the image is processed by using two peak method normalized Canny boundary scan and other methods, the vertical and horizontal scanning and boundary recognition are carried out to obtain the closed Marine garbage main body area. Finally, Zigzag algorithm is used to carry out recovery path planning in the scanned area, and the results under different search radii are compared and analysed. The experimental results show that this method is applicable to a wide range of applications and has high accuracy and practicability, and the recognition results are satisfactory. © Published under licence by IOP Publishing Ltd.

关键词： Regional planning

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Modal analysis and optimization of bus body structure

Modal analysis and optimization of bus body structure

引用

International Conference on Mechanical, Electric and Industrial Engineering, MEIE 2018

作者： Deng, Song Han, Xinghui Yang, Lei Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan430070 China

To study the vibration and noise of the bus, the structural and the relevant acoustic models of the bus body are firstly established. Then, their resonant frequencies and crucial modes of vibration are analyzed. The stiffness, mass and natural frequency of the studied beams are varied to optimize the vibration frequencies and modes of the bus body. The results provide valuable guidelines for the modal analysis and optimization of the bus body structures. © Published under licence by IOP Publishing Ltd.

关键词： Modal analysis

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Optimal design of a 3D printed composite micro-perforated silencer for engine intake noise control 4

Optimal design of a 3D printed composite micro-perforated si...

引用

2020 4th International Conference on Material Science and technology, ICMST 2020

作者： Chen, Wan Lu, Chihua Liu, Zhien Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan430070 China

Micro-perforated panel (MPP) is a new sound-absorbing material with wide frequency band and high absorption characteristics. In this paper, to reduce medium-high frequency intake noise of a car engine under accelerating working conditions, a composite MPP silencer with a serial-parallel coupling mode is presented. Moreover, based on the numerical calculation method of the presented MPP silencer, the Isight software is utilized to integrate relevant simulation software, and then the multi-island genetic algorithm (MIGA) is adopted to optimize the average transmission loss of the silencer. Finally, the optimized silencer is 3D printed for impedance tube testing and vehicle testing. The results demonstrate that the optimization design process of the proposed composite MPP silencer is reasonable;and after adopting the optimized silencer, the objective wideband intake noise is effectively attenuated and the sound pressure level is reduced by 8 dB(A) when the engine is at 3525 r/min, providing a promising way of vehicle noise control. © 2020 Institute of Physics Publishing. All rights reserved.

关键词： Genetic algorithms

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One-step hydrothermal synthesis of Pt and N-doped carbon quantum dots co-Activated as novel electrocatalysts for oxygen reduction reaction 4

One-step hydrothermal synthesis of Pt and N-doped carbon qua...

引用

2023 4th International Conference on Material Chemistry and Composite Materials, MCCM 2023

作者： Zhang, Shuai Wei, Mingrui Liu, Yihui Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan430070 China

In this paper, a novel nano-electrocatalyst (Pt@N-CDs/RGO) with reduced graphene oxide as the carrier and platinum (Pt) and nitrogen-doped carbon quantum dots (N-CDs) together as the active sites was prepared by a simple hydrothermal method. By comparing the electrochemical properties of commercial platinum carbon (Pt/C) and Pt@N-CDs/RGO at 20% wt Pt, it was found that Pt@N-CDs/RGO exhibited excellent ORR properties, such as an onset potential (Eonest) of 1.10 V, a half-wave potential (E1/2) of 0.82 V, a limiting current density of 5.06 mA/cm2, and a number of transferred electrons as high as 3.97. By using the chronoamperometric method (CA) to cycle for 10000 s, it was found that the stability of both, Pt@N-CDs /RGO maintains 18% activity after a cycle of 10000 seconds, which is much higher than Pt/C. The study showcased a new efficient and durable catalyst for PEMFCs. © Published under licence by IOP Publishing Ltd.

关键词： Platinum

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Background Filtering and Object Detection with Roadside LiDAR Data 4

Background Filtering and Object Detection with Roadside LiDA...

引用

4th International Conference on Electron Device and Mechanical Engineering, ICEDME 2021

作者： Liu, Zihan Li, Qizhong Mei, Shengming Huang, Miaohua Wuhan University of Technology Hubei Key Laboratory of Advanced Technology for Automotive Components Hubei Collaborative Innovation Center for Automotive Components Technology Hubei Research Center for New Energy and Intelligent Connected Vehicle Wuhan430070 China

ISBN: (纸本)9780738114002

The roadside LiDAR(light detection and ranging) sensors can obtain relevant information about all roadway users by collecting real-time 3D point cloud data of surrounding objects. In order to analyze the point cloud data of roadway users, background filtering and object detection are essential steps. This paper proposes a background filtering method based on point correlation by KDTree neighborhood searching and an adaptive threshold Euclidean clustering method. In order to improve the detection speed, background filtering will be performed on the original point cloud data before Euclidean clustering, so as to delete a large number of useless background points, and the clustering results will be distinguished by cuboid frame markers. The experimental results show that the single-frame point cloud clustering speed has increased by 31.3%, the clustering speed has been significantly improved. © 2021 IEEE.

关键词： Roadsides

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Research on autonomous driving image recognition based on a new real-time object detection model YOLOv5st 4

Research on autonomous driving image recognition based on a ...

引用

4th International Conference on Computer Science and Communication technology, ICCSCT 2023

作者： Xue, Qingfeng Wang, Xinyu Tu, Gepeng Wu, Jing Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Hubei Wuhan430070 China Wuhan Digital Engineering Institute Hubei Wuhan430074 China

ISBN: (纸本)9781510671232

Considering the complexity of the driving environment and the high uncertainty of road conditions in autonomous driving, this paper proposes a real-time object detection model YOLOv5st, which is the integration of the advantages of YOLOv5s and Swin Transformer to achieve image recognition and object detection tasks in autonomous driving environment perception. The proposed model YOLOv5st is tested on the Transportation of Wuhan China (TOWC) traffic dataset, and the results show that the mean Average Precision (mAP) of the model is 89.8% in the validation set, which is a 2.0% improvement compared to YOLOv5s. And the average inference time of a single image of the new model is 20.6 ms, which can meet the real-time requirements. The proposed improved model has the characteristics of high accuracy, fast speed, and strong robustness, and is suitable for object detection tasks in autonomous driving vehicles. This study provides a new fusion algorithm for the perception of autonomous driving environments and provides new ideas and methods for the practical application of the algorithm through testing on the Wuhan traffic environment dataset. © 2023 SPIE.

关键词： Autonomous vehicles

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