检索结果-内蒙古大学图书馆

IEEE Conference on Vehicle Power and Propulsion (VPPC)

作者： P.L. Huynh O. Abu Mohareb M. Grimm H.J. Mäurer A. Richter H.C. Reuss Department of Automotive Mechatronics Research Institute of Automotive Engineering and Vehicle Engines Stuttgart (FKFS) Stuttgart Germany Department of Development and Testing Technology DEKRA Automobil GmbH Stuttgart Germany

This paper addresses the effect of replacing damaged cells in a battery pack on the total State-of-Health (SoH) using a new technique in where the SoH of a Li-Ion battery pack is accurately determined. The new method is based on relating the parameters of a single-cell battery to determine the SoH in a multi-cell battery pack of the same type. This technique is applicable to the battery pack as it uses the battery pack impulse response to estimate the impact of replacing damaged cells on the battery pack. The time-consuming and expensive standard SoH measurement process can be avoided by this new method. The reference SoH function of the single cell can accurately and quickly estimate the SoH of the individual cells within the battery pack in order to identify the damaged ones. The obtained results have shown possible improvement in the SoH for the nonreplaced cells as well as the improvement in the life of the whole battery pack.

关键词： Batteries Electrical resistance measurement Resistance Aging Discharges (electric) Battery charge measurement Automotive applications

来源：评论

学校读者我要写书评

暂无评论

Polygamy based Genetic Algorithm for Unmanned Aerial Vehicle (UAV) power optimization: A proposal

Polygamy based Genetic Algorithm for Unmanned Aerial Vehicle...

引用

International Conference on Electronics, Computer and Computation (ICECCO)

作者： A. M. Aibinu H. Bello Salau C. M. Akachukwu M. N. Nwohu Department of Mechatronics Engineering Department of Telecommunication Engineering Centre for Satellite Technology Development Obasanjo Space Centre Lugbe Abuja FCT Nigeria Department of Electrical and Electronic Engineering Federal University of Technology Minna Niger State Nigeria

One of the challenges in the operation of Unmanned Aerial Vehicle (UAV) is power optimization under different operation mode. In solving the aforementioned problem, polygamy based selection Genetic Algorithm technique has been proposed in this work. The proposed technique involves parameter initialization, problem coding and optimization. The power requirement is coded as a bit of strings subject to power limit constraint. The initial solutions are evaluated based on the UAV power system objective function. The evaluated solutions are clustered into two different classes using K-Means algorithm. Chromosomes in the cluster with minimal centroid are then made to undergo polygamy mating subject to population control mechanism. Resulting solution were then mutated and the whole process continue till number of generation is reached or other termination criteria met. Application of the proposed technique shows that the average efficiency of UAV can be improved using the proposed algorithm.

关键词： Clustering algorithms Algorithm design and analysis Biological cells Robot kinematics Robot sensing systems Linear programming

来源：评论

学校读者我要写书评

暂无评论

The control system modeling of low-frequency acoustic energy to reduce

The control system modeling of low-frequency acoustic energy...

引用

IEEE Workshop on Advanced Research and technology in Industry Applications (WARTIA)

作者： Chaofeng Lan Huan Chen Fengchen Li Meng Zhang Guanzhong Yang Energy Science and engineering Harbin Institute of Technology Harbin China School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China China ship design and development center Wuhan China School of mechatronics engineering Harbin Institute of Technology Harbin China

ISBN: (纸本)9781479969906

According to the physical characteristics of the marine structure and acoustic wave propagation characteristics, in order to reduce underwater noise, a feedback control model of acoustic nonlinear interaction is established in this paper. The power spectrum and the acoustic energy changing characteristics of single-frequency acoustic wave, which has been through the nonlinear module, and the amplifier module, are analyzed respectively. This lays the foundation for the feedback control model of acoustic nonlinear interaction. Using the chaotic dynamics method, the simulation on the time-history chart, the phase diagram, the power spectrum and the maximum Lyapunov exponent of single-frequency acoustic wave, which go through the feedback control system under external excitation, is analyzed. The result of the simulation shows that, under the control system, the single-frequency acoustic wave amplitude values are modulated, the phase diagram is disorganized, the power spectrum shows the continuous broadband spectral characteristics, the maximum Lyapunov exponent is greater than zero, what's more, the greater the frequency of the external disturbance acoustic is and the smaller the amplitude is, the greater the reduction value of the acoustic energy of the low-frequency acoustic waves under the control system is. Therefore, the dynamic model of the single-frequency acoustic energy reducing in the marine media, in other words, the nonlinear feedback control system under the disturbance of the external excitation and high frequency and the small amplitude, takes shape initially.

关键词： Acoustic waves Feedback control Frequency control Control systems Chaos Frequency modulation

来源：评论

学校读者我要写书评

暂无评论

Extension adaptive design model of scheme design for complex mechanical products

引用

Tehnicki Vjesnik 2014年第1期21卷 123-133页

作者： Wang, Ti-Chun Yang, Ai-Jun Zhong, Shi-Sheng Zhao, Zhen-Dong College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics 344# No. 29 Yudao Street Nanjing 210016 China Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology Nanjing University of Aeronautics and Astronautics 344# No. 29 Yudao Street Nanjing 210016 China Wuxi TJ Innova Auto-design Co. Ltd. Wuxi 214072 China School of Mechatronics Engineering Harbin Institute of Technology No. 92 Xidazhi Street Harbin 150001 China Wuxi TJ Innova Auto-design Co. Ltd. Liyuan Development Zone Wuxi 214072 China

Due to the complicated, multi-hierarchy, multi-attribute and creative process of product structure configuration of complex mechanism scheme design, we study the extension design mode for adaptive design of a large complex product and propose an expression model of multi-type design knowledge in the process of product design. Combined with the field of knowledge and the related design constraints, the adaptive design of extension model is established. The objective function of extension adaptive design is to present the compatibility of the conditions and objectives in the process of adaptive design. Through establishing the ideal positive and negative domains, it acquires the weighted extension superiority of decision scheme. This paper puts forward the extension optimization method of adaptive design for complex mechanical products. Then, it establishes and proposes a framework of extension design model for complex mechanical products. Finally, it analyses the design of large hydraulic turbine products to verify the validity and operability of the model.

关键词： Product design

来源：评论

学校读者我要写书评

暂无评论

Output power optimization of energy harvester, employing segmentation of its electrodes

Output power optimization of energy harvester, employing seg...

引用

International Conference Vibroengineering - 2013

作者： Janusas, G. Milasauskaite, I. Ostasevicius, V. Grigaliunas, V. Dauksevicius, R. Gaidys, R. Institute for Hi-Tech Development Faculty of Mechanical Engineering and Mechatronics Kaunas University of Technology Studentu st. 65 LT-51369 Kaunas Lithuania

This research suggests employing electrode segmentation in order to avoid charge cancellation in the piezoelectric layers of harvester, which occurs, if strain nodes of vibrating harvester are covered by continuous electrodes. For the experimental investigations two types of piezoelectric energy harvester prototypes were produced from piezoelectric T107-H4E-602 plate, epoxy bonded to stainless steel substrate. The first (reference) harvester prototype posses no electrode segmentation, while electrodes covering piezoelectric material of second harvester were segmented. Segmentation of the second harvester was configured for its operation at the second resonant frequency-i. e., performed so, that the electrodes of piezoelectric material are not covering strain node of the second vibration mode. Experimental results revealed that segmented harvester prototype posses efficiency advantage as compared to the non-segmented counterpart-adding voltages, generated at each segment would result from 8% to 52% increase of maximum generated voltage. © 2013 VIBROENGINEERING.

关键词： Electrodes

来源：评论

学校读者我要写书评

暂无评论

Centralized monitoring method for isomeric heat treatment equipments

引用

Advanced Materials Research 2013年 819卷 144-149页

作者： Xiao, Xin Hua Yang, Xiao Feng Yu, Hong Bin Peng, Jun Qiang School of Mechanical Engineering Tianjin Polytechnic University Tianjin China Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology Tianjin China Product Development Department Tianjin Hongda Textile Machinery CO. LTD Tianjin China

ISBN: (纸本)9783037858738

Heat treatment equipment are usually harmful to people, they need to be monitored remotely. As the fact that different types of equipment are used in factories, which leads to the problem that monitoring equipment is difficult. Therefore, research on remote centralized temperature monitoring system is necessary. The concept of isomeric equipment is proposed. The framework of monitoring system is established, which is constituted of temperature control instruments, monitoring server and clients. The functions of monitoring system are described, such as setting temperature, receiving temperature, showing the chart of temperature, accumulating and reusing heat treatment experience etc. The key technologies of monitoring system including dynamic protocol adapter and knowledge accumulation and reuse are also explained. Finally, the system is applied in a factory. The engineer can monitor almost all of the heat treatment equipment only by use the system in the office. © (2013) Trans Tech Publications, Switzerland.

关键词： Heat treatment

来源：评论

学校读者我要写书评

暂无评论

A method to compare and quantify threat to pedestrian using injury cost measure

A method to compare and quantify threat to pedestrian using ...

引用

International Research Council on the Biomechanics of Injury Conference, IRCOBI 2013

作者： Sankarasubramanian, Hariharan Mukherjee, Sudipto Chawla, Anoop Göhlich, Dietmar Indian Institute of Technology Delhi India Department of Mechanical Engineering Indian Institute of Technology Delhi India Department of Product Development Methods and Mechatronics Technische Universität Berlin Germany

Crash report-based studies indicate Vulnerable Road Users (VRUs) to still be at risk of severe injury /fatality on our roads. These studies also indicate frontal crashes to be the most frequently occurring crashes. This work proposes a method to quantify the "threat" from a vehicle front shape to a pedestrian. Injury indices were computed using impact simulations of finite element models of car profiles against multi-body pedestrian models at a speed of 40km per hour. 3 adult pedestrian models (95th %le and 50 th %le Male, 5th %le Female) and one 6 year old child model were considered in crash scenario simulations. Five injury indices, namely, HIC (15ms) for head injury, Viscous Criterion (VC) and resultant peak linear accelerations for chest, peak forces in femur and tibia for lower extremity were recorded from these simulations. An "Injury Cost" (IC) measure was then calculated by mapping injury indices to Abbreviated Injury Scale-based scores and then mapping them to cost implications. MAIS and ISS have also been discussed for comparison of threat. Ford Taurus (a pre- Euro- NCAP rated car, and named Profile 1), and Toyota Yaris (a post- Euro-NCAP rated car with 21 points, and named Profile 2) profiles were evaluated using the proposed IC measure. Equi-weighted IC showed Profile 2 to be safer than Profile 1 but specific population-based weighted IC indicated Profile 1 to be relatively safer.

关键词： Mapping

来源：评论

学校读者我要写书评

暂无评论

Magneto-optic characteristics of gamma-ray irradiated Cu-doped optical fiber

Magneto-optic characteristics of gamma-ray irradiated Cu-dop...

引用

2013 18th OptoElectronics and Communications Conference Held Jointly with 2013 International Conference on Photonics in Switching, OECC/PS 2013

作者： Kim, Youngwoong Ju, Seongmin Jeong, Seongmook Jang, Myoung-Jin Kim, Jong-Yeol Lee, Nam-Ho Jung, Hyun-Kyu Han, Won-Taek Department of Physics and Photon Science/School of Information and Mechatronics Gwangju Institute of Science and Technology 1 Oryong-dong Buk-gu Korea Republic of Nuclear Convergence Technology Development Department Korea Atomic Energy Research Institute 989-111 Daedeok-daero Yuseong-gu Daejeon Korea Republic of

Effect of gamma-ray irradiation on magneto-optic characteristics of Cu-doped optical fiber was investigated. Verdet constant at 660 nm under magnetic field of 0.142 T of the optical fiber increased about 1.46 times af... 详细信息

ISBN: (纸本)9784885522710

关键词： Optical fibers

来源：评论

学校读者我要写书评

暂无评论

Modeling Possibilities of Very High Temperatures and Pressures at Friction Contact Plastics Filled with Glass Fibers on Steel

引用

材料科学与工程（中英文A版） 2013年第10期3卷 667-677页

作者： Dorin Rus Lucian Capitanu Liliana-Laura Badita Mechanical Department Institute of Civil Engineering Bucharest 050153 Romania Technology Tribology Department Institute of Solid Mechanics of the Romanian Academy Bucharest 010141 Romania National Institute of Research and Development in Mechatronics and Measurement Technique Bucharest 021631 Romania

来源：评论

学校读者我要写书评

暂无评论

Magneto-optic characteristics of gamma-ray irradiated Cu-doped optical fiber

Magneto-optic characteristics of gamma-ray irradiated Cu-dop...

引用

International Conference on Photonics in Switching (PS)

作者： Youngwoong Kim Seongmin Ju Seongmook Jeong Myoung-Jin Jang Jong-Yeol Kim Nam-Ho Lee Hyun-Kyu Jung Won-Taek Han Department of Physics and Photon Science School of Information and Mechatronics Gwangju Institute of Science and Technology Gwangju South Korea Nuclear Convergence Technology Development Department Korea Atomic Energy Research Institute Daejeon South Korea

ISBN: (纸本)9784885522710

关键词： Radiation effects Faraday effect Optical fibers Gamma-rays Absorption Magnetic fields

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：