评《思想政治理论课教学科研分析报告(2017)》
作者：
杜荣华
期刊：
科研管理 ,2020年41(6):F0004-F0004 ISSN：1000-2995
作者机构：
长沙理工大学汽车与机械工程学院;[杜荣华] 长沙理工大学
关键词：
课程思政;现代高等教育;现代化人才;思想政治理论课教学;世界一流大学;教书育人;思想政治教育;落实科学发展观
摘要：
在党中央精神指引下,近年来高校课程思政工作稳步推行,从早期的“点”试验到现代高等教育界“面”推广,我国高校课程思政改革与发展取得了显著成效.高校围绕课程思政展开探索与实践是坚持思想政治教育一般规律与教书育人相结合的必然选择,是贯彻和落实科学发展观、建设中国特色社会主义社会的必然要求,是扎根中国大地办世界一流大学的应有之意,是培养现代化人才的必然选择,是现代高校发掘思政资源、强化价值引领、落实育人目标的内在动力.佘双好等的学术著作《思想政治理论课教学科研分析报告(2017)》(社会科学文献出版社)是在2016-2017版基础上进一步对2017年思政理论课教学和科研情况进行追踪分析后形成的报告总结.本书延续了2016-2017版的核心思路,主要采用文献计量分析、内容分析和观点评述等方法对2017年高校思政理论课教学与科研进行了系统性描述,本书着重探究了政治理论课教学中存在的问题并分析问题产生原因,最后根据调查结果、教育一般理论、思政工作一般原则提出了相应的建议和对策,旨在为高校思政理论课教学调整与改革提供相应的数据支持和经验参考.
语种：
中文
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Simulation and experiments of active vibration control for ultra-long flexible manipulator under impact loads:
作者：
Huang, Yi* ;Liu, Zhiqiang;Du, Ronghua;Tang, Hongbin
期刊：
Journal of Vibration and Control ,2019年25(3):675-684 ISSN：1077-5463
通讯作者：
Huang, Yi
作者机构：
[Du, Ronghua; Huang, Yi; Liu, Zhiqiang; Tang, Hongbin] Changsha Univ Sci & Technol, Sch Automot & Mech Engn, Changsha, Hunan, Peoples R China.;[Huang, Yi] Educ Dept Hunan Prov, Key Lab Lightweight & Reliabil Technol Engn Vehic, Changsha, Hunan, Peoples R China.;[Huang, Yi] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha, Hunan, Peoples R China.;[Huang, Yi] Changsha Univ Sci & Technol, Changsha 410114, Hunan, Peoples R China.
通讯机构：
[Huang, Yi] C;Changsha Univ Sci & Technol, Changsha 410114, Hunan, Peoples R China.
关键词：
Active vibration control;frequency domain;least mean square method;flexible manipulator;fast Fourier transform;inverse fast Fourier transform;pump truck
摘要：
This paper aims to reduce the tip vibration of an ultra-long flexible manipulator subjected to impact loads. A modified least mean square method is proposed to determine the frequency response matrix of control paths and identify the complex amplitude of external excitation responses. The presented work is innovative in the sense that: (1) a theoretical model and a new algorithm are proposed for the identification of explicit convergence conditions of online parameters, and they are used to calculate output variables for the optimized robotic control; (2) an active numerical approach is developed to control the response of the tip vibration of the manipulator. The control algorithm is based on a relational model of control parameters and system outcomes; (3) design of experiments is performed for the verification purpose. The active vibration control has been demonstrated on a pump truck product where the third boom hydraulic cylinder is selected as the actuator for testing, and the manipulator tip is equipped with an acceleration sensor to collect the information of vibration; and (4) the performance of the proposed active vibration control has been validated on the flexible manipulator, and the results have shown that the amplitude of the vibration of robotic tip has been decreased for more than 60%.
语种：
英文
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Research on emergency evacuation path optimization of transportation hub based on fuzzy theory
作者：
Wei, J.;Li, S.M.;Zhang, Z.S.;Du, R.H.;Zhao, L.;...
期刊：
Advances in Transportation Studies ,2019年1(Special Issue):49-60 ISSN：1824-5463
通讯作者：
Li, S.M.(lisumin57@gmail.com)
作者机构：
[Wei, J.; Zhao, L.; Liu, H.M.] School of Geosciences and Info-Physics, Central South University, Changsha;410083, China;[Li, S.M.] School of Architecture, Changsha University of Science and Technology, Changsha;610059, China;[Zhang, Z.S.] College of Basic Education, National University of Defense Technology, Changsha
通讯机构：
[Li, S.M.] S;School of Architecture, China
关键词：
Based on fuzzy theory;Emergency evacuation;Path optimization;Traffic hub
摘要：
Aiming at the problems of long time and high cost of emergency evacuation in traditional optimization methods for emergency evacuation path of traffic hub, an optimization method for emergency evacuation path of traffic hub based on fuzzy theory is proposed. According to the sudden and dynamic characteristics of emergency evacuation path of transportation hub, the weight of different paths is solved by using the method of fuzzy analytic hierarchy process (FAHP). The corresponding path weight matrix is constructed, and the path weight matrix is introduced into the solution model of state transition probability of ant colony algorithm to obtain the optimal emergency evacuation path of traffic hub. The simulation results show that the proposed method can effectively improve the efficiency of emergency evacuation and reduce the cost of emergency evacuation. © 2019, Gioacchino Onorati Editore. All rights reserved.
语种：
英文
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Conditional Artificial Potential Field-Based Autonomous Vehicle Safety Control with Interference of Lane Changing in Mixed Traffic Scenario
作者：
Gao, Kai;Yan, Di;Yang, Fan* ;Xie, Jin;Liu, Li;...
期刊：
Sensors ,2019年19(19):4199 ISSN：1424-8220
通讯作者：
Yang, Fan
作者机构：
[Liu, Li; Du, Ronghua; Yan, Di; Xie, Jin; Gao, Kai] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China.;[Du, Ronghua; Gao, Kai] Hunan Key Lab Smart Roadway & Cooperat Vehicle In, Changsha 410114, Hunan, Peoples R China.;[Yang, Fan] Zhongnan Univ Econ & law, Sch Informat & Secur Engn, Wuhan 430073, Hubei, Peoples R China.;[Xiong, Naixue] Tianjin Univ, Coll Intelligence & Comp, Tianjin 300350, Peoples R China.
通讯机构：
[Yang, Fan] Z;Zhongnan Univ Econ & law, Sch Informat & Secur Engn, Wuhan 430073, Hubei, Peoples R China.
关键词：
C-APF;SVM;autonomous vehicle safety;car-following;lane change;mixed traffic
摘要：
<jats:p>Car-following is an essential trajectory control strategy for the autonomous vehicle, which not only improves traffic efficiency, but also reduces fuel consumption and emissions. However, the prediction of lane change intentions in adjacent lanes is problematic, and will significantly affect the car-following control of the autonomous vehicle, especially when the vehicle changing lanes is only a connected unintelligent vehicle without expensive and accurate sensors. Autonomous vehicles suffer from adjacent vehicles’ abrupt lane changes, which may reduce ride comfort and increase energy consumption, and even lead to a collision. A machine learning-based lane change intention prediction and real time autonomous vehicle controller is proposed to respond to this problem. First, an interval-based support vector machine is designed to predict the vehicles’ lane change intention utilizing limited low-level vehicle status through vehicle-to-vehicle communication. Then, a conditional artificial potential field method is used to design the car-following controller by incorporating the lane-change intentions of the vehicle. Experimental results reveal that the proposed method can estimate a vehicle’s lane change intention more accurately. The autonomous vehicle avoids collisions with a lane-changing connected unintelligent vehicle with reliable safety and favorable dynamic performance.</jats:p>
语种：
英文
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基于V2X的单向道路信号灯协调控制方法
作者：
Gao, Kai;Han, Fa-rong;Wen, Meng-fei;Du, Rong-hua* ;Li, Shuo;...
期刊：
中南大学学报(英文版) ,2019年26(9):2516-2527 ISSN：2095-2899
通讯作者：
Du, Rong-hua
作者机构：
[Han, Fa-rong; Gao, Kai; Du, Rong-hua] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China.;[Wen, Meng-fei] Hunan Prov Res Inst Educ, Changsha 410005, Hunan, Peoples R China.;[Zhou, Feng; Li, Shuo] Changsha Univ Sci & Technol, Coll Elect & Informat Engn, Changsha 410114, Peoples R China.
通讯机构：
[Du, Rong-hua] C;Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China.
关键词：
intersection;vehicle infrastructure cooperation;coordinated control;simulation evaluation
摘要：
One-way roads have potential for improving vehicle speed and reducing traffic delay. Suffering from dense road network, most of adjacent intersections' distance on one-way roads becomes relatively close, which makes isolated control of intersections inefficient in this scene. Thus, it is significant to develop coordinated control of multiple intersection signals on the one-way roads. This paper proposes a signal coordination control method that is suitable for one-way arterial roads. This method uses the cooperation technology of the vehicle infrastructure to collect intersection traffic information and share information among the intersections. Adaptive signal control system is adopted for each intersection in the coordination system, and the green light time is adjusted in real time based on the number of vehicles in queue. The offset and clearance time can be calculated according to the real-time traffic volume. The proposed method was verified with simulation results by VISSiM traffic simulation software. The results compared with other methods show that the coordinated control method proposed in this paper can effectively reduce the average delay of vehicles on the arterial roads and improve the traffic efficiency. © 2019, Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature.
语种：
英文
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Connected Vehicle as a Mobile Sensor for Real Time Queue Length at Signalized Intersections
作者：
Gao, Kai;Han, Farong;Dong, Pingping* ;Xiong, Naixue* ;Du, Ronghua
期刊：
Sensors ,2019年19(9):2059 ISSN：1424-8220
通讯作者：
Dong, Pingping;Xiong, Naixue
作者机构：
[Han, Farong; Du, Ronghua; Gao, Kai] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China.;[Du, Ronghua; Gao, Kai] Hunan Key Lab Smart Roadway & Cooperat Vehicle In, Changsha 410114, Hunan, Peoples R China.;[Dong, Pingping] Hunan Normal Univ, Coll Informat Sci & Engn, Changsha 410081, Hunan, Peoples R China.;[Xiong, Naixue] Tianjin Univ, Coll Intelligence & Comp, Tianjin 300350, Peoples R China.
通讯机构：
[Dong, Pingping] H;[Xiong, Naixue] T;Hunan Normal Univ, Coll Informat Sci & Engn, Changsha 410081, Hunan, Peoples R China.;Tianjin Univ, Coll Intelligence & Comp, Tianjin 300350, Peoples R China.
关键词：
BP neural network;connected vehicle;penetration rate;queue length;shockwave
摘要：
With the development of intelligent transportation system (ITS) and vehicle to X (V2X), the connected vehicle is capable of sensing a great deal of useful traffic information, such as queue length at intersections. Aiming to solve the problem of existing models’ complexity and information redundancy, this paper proposes a queue length sensing model based on V2X technology, which consists of two sub-models based on shockwave sensing and back propagation (BP) neural network sensing. First, the model obtains state information of the connected vehicles and analyzes the formation process of the queue, and then it calculates the velocity of the shockwave to predict the queue length of the subsequent unconnected vehicles. Then, the neural network is trained with historical connected vehicle data, and a sub-model based on the BP neural network is established to predict the real-time queue length. Finally, the final queue length at the intersection is determined by combining the sub-models by variable weight. Simulation results show that the sensing accuracy of the combined model is proportional to the penetration rate of connected vehicles, and sensing of queue length can be achieved even in low penetration rate environments. In mixed traffic environments of connected vehicles and unconnected vehicles, the queuing length sensing model proposed in this paper has higher performance than the probability distribution (PD) model when the penetration rate is low, and it has an almost equivalent performance with higher penetration rate while the penetration rate is not needed. The proposed sensing model is more applicable for mixed traffic scenarios with much looser conditions. © 2019 by the authors.
语种：
英文
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分布式驱动电动汽车复合制动系统转矩分配控制策略仿真
作者：
杜荣华;米思雨;胡林;孟灿
期刊：
汽车工程 ,2019年41(3):327-333,345 ISSN：1000-680X
通讯作者：
Du, R.
作者机构：
长沙理工大学智能交通与车路协同技术研究所;长沙理工大学汽车与机械工程学院;[孟灿; 杜荣华; 胡林; 米思雨] 长沙理工大学
通讯机构：
Institute of Intelligent Traffic and Cooperative Vehicle-Infrastructure Systems, Changsha University of Science and Technology, Changsha, China
关键词：
分布式驱动电动汽车;复合制动系统;转矩分配;制动稳定性
摘要：
针对分布式驱动电动汽车,提出了一种复合制动系统控制策略。采用分层的制动转矩分配控制结构,上层控制器采用滑模控制策略,对目标纵向力和横摆力矩进行求解,以满足车辆在制动时制动效能和制动稳定性的要求;下层控制器采用加权最小二乘控制,对四轮液压制动转矩和电机制动转矩进行分配,通过增大电机制动力分配的权值达到能量回收的最大化,并采用有效集算法完成目标函数的求解。在此基础上,在Simulink中建立了7自由度整车动力学模型,在对开路面的工况下进行了仿真分析,结果表明:所制定的控制策略能满足要求,在保证车辆制动稳定性的同时,最大限度回收制动能量。
语种：
中文
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Optimal Route Algorithm Considering Traffic Light and Energy Consumption
作者：
Hu, Lin;Zhong, Yuanxing;Hao, Wei* ;Moghimi, Bahman;Huang, Jing;...
期刊：
IEEE ACCESS ,2018年6:59695-59704 ISSN：2169-3536
通讯作者：
Hao, Wei
作者机构：
[Zhong, Yuanxing; Zhang, Xin; Hu, Lin; Du, Ronghua] Changsha Univ Sci & Technol, Sch Automot & Mech Engn, Changsha 410205, Hunan, Peoples R China.;[Hao, Wei] Changsha Univ Sci & Technol, Hunan Key Lab Smart Roadway & Cooperat Vehicle In, Changsha 410205, Hunan, Peoples R China.;[Moghimi, Bahman] CUNY, Dept Civil Engn, New York, NY 10031 USA.;[Huang, Jing] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China.
通讯机构：
[Hao, Wei] C;Changsha Univ Sci & Technol, Hunan Key Lab Smart Roadway & Cooperat Vehicle In, Changsha 410205, Hunan, Peoples R China.
关键词：
energy-saving algorithm;Optimal path algorithm;real-time speed;signalized intersection;vehicle infrastructure cooperative systems
摘要：
Vehicle speed trajectory and traffic signals significantly impact vehicle's fuel consumption and travel time in the urban road network. In this paper, we proposed an optimal vehicle routing algorithm that takes the waiting time at signalized intersections and eco-driving model into consideration. First, the data of the floating car collected by the GPS are matched with the electronic map, and the average traveling speed of the vehicle in each road segment is calculated in real time. The position and timing information of the signal lights at each intersection are pre-acquired to establish an eco-driving model at signalized intersections with the support of cooperative vehicle infrastructure system technologies. The vehicle accelerates through the signalized intersection to reduce the waiting time in the case, where the headway is allowed, while the vehicle decelerates to the minimum speed to avoid idling. Based on the traffic lights red light, green light conversion probability, and vehicle energy-saving driving model, the signal light cycle duration is divided into four parts: the green light pass section, the red-light acceleration section, the red light idle section, and the red-light deceleration section. Combining the probability distribution and the fuel consumption model, the average fuel consumption at the intersection area can be calculated. Taking the optimal energy consumption as the goal, combined with the A∗ algorithm, an optimal path algorithm that considers the influence of traffic lights and energy consumption is proposed. Finally, two examples are tested, including a real-world road map in Changsha city to demonstrate the effectiveness of the proposed algorithm. And the results show that the proposed model has good performance on energy consumption reduction. © 2013 IEEE.
语种：
英文
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Discovering Urban Functional Areas Based on Node2vec-Taking Shanghai as an Example
作者：
Sun, Yang;Deng, Hanhan;Zhao, Ling;Li, Sumin* ;Zhang, Zhenshi;...
作者机构：
[Sun, Yang] 72465 Unit PLA, Jinan 250022, Shandong, Peoples R China.;[Zhao, Ling; Deng, Hanhan] Cent South Univ Technol, Sch Geogsci & Infophys, Changsha 410083, Hunan, Peoples R China.;[Li, Sumin] Changsha Univ Sci & Technol, Sch Architecture, Changsha 610059, Hunan, Peoples R China.;[Zhang, Zhenshi] Natl Univ Def Technol, Coll Basic Educ, Changsha 410073, Hunan, Peoples R China.;[Du, Ronghua; Hou, Zhixiang] Changsha Univ Sci & Technol, Sch Vehicle & Mech Engn, Changsha 610059, Hunan, Peoples R China.
会议名称：
2018 11th International Conference on Intelligent Computation Technology and Automation (ICICTA)
会议时间：
September 2018
会议地点：
Changsha, China
会议论文集名称：
2018 11th International Conference on Intelligent Computation Technology and Automation (ICICTA)
关键词：
Node2vec, Network embedding, Urban functional areas, Spatial structure
摘要：
As China's urbanization process continues to advance and deepen, the spatial structure within each city is changing constantly. Analyzing the hidden relationship between human and land behind the massive urban data is a hot topic. In this paper, we apply the idea of network embedding to urban geography. The high-dimensional urban human activity data is embedded into the low-dimensional space (feature space) using the node2vec method. Compared to the traditional method of directly using high dimensional data analysis, node2vec can better detect the spatial relationship and structure of the network which are important for us to understand the urban functional areas more clearly. Based on Shanghai taxi data and subway travel data, we focused on the distribution and characteristics of functional areas in Shanghai. Then we verified the feasibility and superiority of node2vec.
语种：
英文
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考虑信号交叉口延时的最优车辆路径规划算法
作者：
胡林;钟远兴;黄晶;杜荣华;张新
期刊：
汽车工程 ,2018年40(10):1223-1229,1253 ISSN：1000-680X
通讯作者：
Hu, L.
作者机构：
长沙理工大学汽车与机械工程学院, 长沙, 410114;长沙理工大学, 工程车辆安全性设计与可靠性技术湖南省重点实验室, 长沙, 410114;湖南大学, 汽车车身先进设计制造国家重点实验室, 长沙, 410082;[胡林; 钟远兴; 杜荣华; 张新] 长沙理工大学汽车与机械工程学院, 长沙, 410114 长沙理工大学, 工程车辆安全性设计与可靠性技术湖南省重点实验室, 长沙, 410114;[黄晶] 湖南大学, 汽车车身先进设计制造国家重点实验室, 长沙, 410082
通讯机构：
School of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha, China
关键词：
最优路径算法;车路协同;信号交叉口;等待时间
摘要：
本文中提出了一种考虑信号交叉口等待时间的车辆最优路径规划算法。通过GPS采集的浮动车数据与电子地图进行匹配,实时计算出各路段的车辆平均行驶速度和通行时间。基于马尔科夫链构建信号交叉口红绿灯的概率模型,通过车路协同技术预先获取各路段交叉口信号灯的位置和相位配时信息,并在车辆接近交叉口时对车辆速度进行优化,将车辆加速通过交叉口视为绿灯时间的延长,并以此构建车辆快速通过交叉口的等待时间模型。在此基础上,结合A*算法,提出一种考虑快速通过信号交叉口的改进A*算法。最后选取长沙市区某路网为算例进行仿真分析,结果表明改进A*算法所得路径的通行时间明显短于传统A*算法。
语种：
中文
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Identifying Important Spatial Structures in Cities Based on Graphwave-Taking Shanghai as an Example
作者：
Sun, Yang;Shi, Zuoqin;Deng, Hanhan;Wu, Wenquan;Zhao, Ling;...
作者机构：
[Sun, Yang] 72465 Unit PLA, Jinan 250022, Shandong, Peoples R China.;[Wu, Wenquan; Zhao, Ling; Deng, Hanhan; Shi, Zuoqin] Cent S Univ, Sch Geosci & Infophys, Changsha 410083, Hunan, Peoples R China.;[Li, Sumin] Changsha Univ Sci & Technol, Sch Architecture, Changsha 610059, Hunan, Peoples R China.;[Zhang, Zhenshi] Natl Univ Def Technol, Coll Basic Educ, Changsha 410073, Hunan, Peoples R China.;[Du, Ronghua] Changsha Univ Sci & Technol, Sch Vehicle & Mech Engn, Changsha 610059, Hunan, Peoples R China.
会议名称：
2018 11th International Conference on Intelligent Computation Technology and Automation (ICICTA)
会议时间：
September 2018
会议地点：
Changsha, China
会议主办单位：
[Sun, Yang] 72465 Unit PLA, Jinan 250022, Shandong, Peoples R China.^[Shi, Zuoqin;Deng, Hanhan;Wu, Wenquan;Zhao, Ling] Cent S Univ, Sch Geosci & Infophys, Changsha 410083, Hunan, Peoples R China.^[Li, Sumin] Changsha Univ Sci & Technol, Sch Architecture, Changsha 610059, Hunan, Peoples R China.^[Zhang, Zhenshi] Natl Univ Def Technol, Coll Basic Educ, Changsha 410073, Hunan, Peoples R China.^[Du, Ronghua] Changsha Univ Sci & Technol, Sch Vehicle & Mech Engn, Changsha 610059, Hunan, Peoples R China.
会议论文集名称：
2018 11th International Conference on Intelligent Computation Technology and Automation (ICICTA)
关键词：
Graphwave spatial structure;Shanghai;travel mode;similarity
摘要：
With the advancement and development of urbanization in China, human activities are closely related to the changes in the internal structure and external layout of the city. The human migration model reflects the internal structure of the city to some extent. In two places where the city is far apart, the layout is very similar, and people's activities may also have certain similarities. Inspired by Graphwave, the city's spatial network was constructed using data from human travel. It was found that the city's more important and potentially influential areas of urban functioning. This paper uses the data of Shanghai Mobike and taxis to build a network, identifies the similarity nodes in the city, uses the POI data set to verify the final data, and explains its important geographical significance. Experiments show that similarity nodes are mostly distributed in schools and communities, and are relatively close to transportation hubs.
语种：
英文
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Study on Particle Size Distribution of Dynamic Light Scattering Nanoparticles Based on Inversion Algorithm
作者：
Nie, Zhihong;Yang, Xiaoxia* ;Hou, Zhixiang;Li, Sumin;Du, Ronghua
期刊：
JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS ,2017年12(11):1207-1210 ISSN：1555-130X
通讯作者：
Yang, Xiaoxia
作者机构：
[Nie, Zhihong] Cent S Univ, Sch Civil Engn, Changsha 410076, Hunan, Peoples R China.;[Yang, Xiaoxia] Chengdu Univ Technol, Coll Earth Sci, Changsha 610059, Hunan, Peoples R China.;[Yang, Xiaoxia] Minist Land & Resources PR China, Key Lab Geosci Spatial Informat Technol, Changsha 610059, Hunan, Peoples R China.;[Du, Ronghua; Li, Sumin; Hou, Zhixiang] Changsha Univ Sci & Technol, Sch Vehicle & Mech Engn, Changsha 610059, Hunan, Peoples R China.
通讯机构：
[Yang, Xiaoxia] C;[Yang, Xiaoxia] M;Chengdu Univ Technol, Coll Earth Sci, Changsha 610059, Hunan, Peoples R China.;Minist Land & Resources PR China, Key Lab Geosci Spatial Informat Technol, Changsha 610059, Hunan, Peoples R China.
关键词：
Dynamic light scattering particle technique;Regularization inversion algorithm
摘要：
Nanoparticles are extensively used in various fields because of its surface and quantum size effects. Therefore, the measurement of nanoparticle size is of great significance to the development of nanotechnology. In order to accurately measure nanoparticles, dynamic light scattering particle technology can be used. However, it needs to solve the integral equation during measurement. In order to solve this problem, regularization inversion algorithm is proposed and designed a particle measurement system in this paper. The experimental results show that the inversion algorithm can accurately measure the particle size of nanoparticles and provide a reference for the development of dynamic light scattering particle technology.
语种：
英文
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基于全速度差模型的拥堵吸收驾驶策略
作者：
宁利民;杜荣华;刘理;张叠
期刊：
武汉理工大学学报(交通科学与工程版) ,2017年41(6):989-994 ISSN：2095-3844
作者机构：
长沙理工大学智能交通与车路协同技术研究所 长沙 410004;长沙理工大学工程车辆轻量化与可靠性技术重点实验室 长沙 410004;[刘理; 杜荣华; 张叠; 宁利民] 长沙理工大学
关键词：
交通工程;交通拥堵;交通仿真;拥堵吸收驾驶;全速度差模型;时空图
摘要：
拥堵吸收驾驶是对交通拥堵进行吸收的驾驶行为,它涉及一辆车按指定的速度行驶,当车辆到达拥堵区域时,拥堵刚好解除的驾驶意图.由于这一驾驶行为可能会导致后续车辆的"二次拥堵",故而有学者将车流稳定性与拥堵吸收驾驶进行了结合,但其所使用的模型及稳定性分析存在不足,比如交通情形脱离实际,稳定性分析单一等.文中在全速度差模型（FVD模型）的基础上考虑了不同稳定状态车流的拥堵吸收驾驶行为,对亚稳态区中高低密度车流的拥堵吸收驾驶进行了建模,通过模型参数曲线和临界扰动强度曲线得出了车流不产生"二次拥堵"的稳定性条件,并用数值仿真予以验证,结果证明模型及稳定性分析的准确性.
语种：
中文
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基于支持向量机的车辆换道决策模型
作者：
张叠;杜荣华;刘理
期刊：
武汉理工大学学报(交通科学与工程版) ,2017年41(5):849-853 ISSN：2095-3844
作者机构：
长沙理工大学智能交通与车路协同技术研究所 长沙 410004;长沙理工大学工程车辆轻量化与可靠性技术重点实验室 长沙 410004;[刘理; 杜荣华; 张叠] 长沙理工大学
关键词：
换道行为;支持向量机;卡尔曼滤波
摘要：
针对车辆换道行为受交通环境影响较大而难以识别和预测的问题,提出了一种基于支持向量机的学习模型用以仿真驾驶员在高速路上关于车辆换道的行为决策.通过分析车辆在换道阶段的特征与规律,选择适合的物理量作为模型的输入参数.以NGSIM数据库为基础用适当的方法进行样本提取,并对样本数据进行差分滤波、卡尔曼滤波、归一化预处理.在构建SVM模型过程中,运用不同的算法搜索最优参数.为了验证模型的泛用性,使用不同的数据样本对模型进行训练和测试,最终取得到了较好的预测结果与拟合度.
语种：
中文
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Fast participant recruitment algorithm for large-scale Vehicle-based Mobile Crowd Sensing
作者：
Yi, Kefu* ;Du, Ronghua;Liu, Li;Chen, Qingying;Gao, Kai
期刊：
Pervasive and Mobile Computing ,2017年38:188-199 ISSN：1574-1192
通讯作者：
Yi, Kefu
作者机构：
[Liu, Li; Du, Ronghua; Yi, Kefu; Gao, Kai] Changsha Univ Sci & Technol, Sch Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China.;[Du, Ronghua] Key Lab Safety Design & Reliabil Technol Engn Veh, Changsha 410114, Hunan, Peoples R China.;[Liu, Li] Coll Hunan Prov, Key Lab Lightweight & Reliabil Technol Engn Vehic, Changsha 410114, Hunan, Peoples R China.;[Chen, Qingying] Univ Tulsa, Dept Phys & Engn Phys, Tulsa, OK 74104 USA.
通讯机构：
[Yi, Kefu] C;Changsha Univ Sci & Technol, Sch Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China.
关键词：
Economic and social effects;Vehicles;Crowd sensing;Linear time complexity;Maximization problem;On-board resources;Participant recruitment;Participatory Sensing;Trace driven simulation;Vehicular sensing;Approximation algorithms
摘要：
Mobile crowd sensing has become an emerging computing and sensing paradigm that recruits ordinary participants to perform sensing tasks. With the highly dynamic mobility pattern and the abundance of on-board resources, vehicles have been increasingly recruited to participate large-scale crowd sensing applications such as urban sensing. However, existing participant recruitment algorithms take a long time in recruitment decision for large number of vehicular participants. In this paper, a fast algorithm for vehicle participant recruitment problem is proposed, which achieves linear-time complexity at the sacrifice of a slightly lower sensing quality. The participant recruitment problem is modeled as a unconstrained maximization problem without explicitly cost constraint and a trade-off parameter is introduced to control the recruiter cost. Trace-driven simulations on both real-world and synthetic data-sets are conducted to evaluate the performance of the proposed algorithm. Simulation results show that the proposed algorithm is 50 times faster than the state-of-art algorithm at the sacrifice of 5% lower sensing quality when the number of participants is over 1000. © 2017 Elsevier B.V.
语种：
英文
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基于永磁铁的减振器振动压电俘能装置的结构设计与分析
作者：
黄维彬;魏克湘;杜荣华;耿晓锋
作者机构：
[黄维彬; 魏克湘; 杜荣华; 耿晓锋] 长沙理工大学汽车与机械工程学院;[黄维彬; 魏克湘; 杜荣华; 耿晓锋] 湖南工程学院机械工程学院
会议名称：
中国力学大会-2017暨庆祝中国力学学会成立60周年大会
会议时间：
2017-08-13
会议地点：
中国北京
关键词：
压电陶瓷;永磁铁;压电转换;压电俘能器;减振器
摘要：
本文提出一种可集成在汽车减振器上的压电俘能器结构,通过分别固定在压电单元和减振器外缸筒内壁上的两片平行放置的永磁铁,将减振器的上下振动转换为永磁铁间的相对平行滑动,在减振器振动时,永磁铁促使压电单元输出电能,实现振动能量回收。利用仿真软件对俘能器在不同等级路面随机振动信号下的开路电压响应进行仿真,仿真结果表明,无论振动如何,俘能器都能实现将振动能转换为电能的目的,且电压幅值基本相同,但电压频率随路
语种：
中文
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Simulation analysison piezoelectricity conversion characteristics of piezoelectric stack based on rolling depression
作者：
黄维彬;魏克湘;杜荣华
期刊：
动力学与控制学报 ,2017年15(6):569-576 ISSN：1672-6553
通讯作者：
Wei, K.
作者机构：
[黄维彬; 杜荣华] College of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha, 410114, China;[魏克湘] Department of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan, 411101, China
通讯机构：
Department of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan, China
关键词：
压电振子;滚压;压电叠堆;压电转换
摘要：
本文提出一种基于滚压的压电俘能器结构,结合Cymbal压电换能器和压电振子叠堆,利用滚珠作为激励源,可以把机构的往复振动转换为对压电振子的单向压迫.使用仿真软件对俘能器结构中滚珠压迫压电单元的力,以及该俘能器结构在并联和串联模式下输出的电压和俘获的电能进行仿真分析,得到该结构的压电转换特性.仿真结果表明,滚珠对压电叠堆的压迫力与压电陶瓷层数并不是单向递减,1-5层时递增,5层以后压迫力逐渐减小.在压电陶瓷的总层数不变的情况下,并联和串联时压电叠堆所俘获的总电能是不变的.两种联接模式下总电能随层数的变化关系为5层以内时随层数的增加而减小,超过5层后逐渐增加.
语种：
中文
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无刷直流外转子电机结构参数优化
作者：
刘志强;舒刚华;杜荣华;杨中华
期刊：
食品与机械 ,2016年32(11):93-97,228 ISSN：1003-5788
作者机构：
长沙理工大学汽车与机械工程学院, 湖南, 长沙, 410114;长沙中成汽车零部件有限公司技术部, 湖南, 长沙, 410114;[刘志强; 舒刚华; 杜荣华] 长沙理工大学汽车与机械工程学院, 湖南, 长沙, 410114;[杨中华] 长沙中成汽车零部件有限公司技术部, 湖南, 长沙, 410114
关键词：
优化设计;Taguchi方法;齿槽转矩;直流外转子电机;有限元分析
摘要：
齿槽转矩脉动是影响直流外转子电机输出转矩脉动的主要原因。为抑制齿槽转矩脉动,根据电机的结构参数建立了有限元分析模型,并对齿槽转矩进行仿真;仿真结果与试验获取的齿槽转矩曲线吻合较好,证明了所建模型的正确性。然后,采用Taguchi方法,以齿槽转矩峰值和平均输出转矩作为优化目标,以槽口宽度、极弧系数、气隙长度、平行齿宽为控制因子,选取槽口宽度加工误差、气隙长度加工误差、平行齿宽加工误差和永磁体剩磁变化作为噪声因子,对电机进行了优化设计,并利用所建立的有限元分析模型进行性能仿真验证。结果表明:用Taguchi方法优化电机设计参数,能够在电机平均输出转矩略有增加的同时,显著降低齿槽转矩。
语种：
中文
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Fuzzy control method of regenerative braking in electric vehicles considering parameter sensitivity
作者：
刘志强;汪浩磊;杜荣华
期刊：
中南大学学报(自然科学版) ,2016年47(11):3700-3706 ISSN：1672-7207
通讯作者：
Liu, Zhiqiang(lzq0228@126.com)
作者机构：
[刘志强; 汪浩磊; 杜荣华] School of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha;410114, China;[刘志强; 汪浩磊; 杜荣华] 410114, China
通讯机构：
School of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha, China
关键词：
电动汽车;制动力分配;模糊控制;灵敏度分析
摘要：
分析影响电动汽车制动能量回馈的主要因素;以制动能量最大化为目标,建立电液复合制动力分配模型,设计以电液复合制动特性参数蓄电池荷电状态(S_(OC))、制动强度、车速为输入,回馈制动比例为输出的制动力模糊分配规则。同时,以能量回收率为评价指标对S_(OC)、制动强度及车速进行灵敏度分析。研究结果明:S_(OC)对能量回收率的影响最大,制动强度对能量回收率的影响次之;根据各特性参数对评价指标的影响权重,可改进电液复合制动力分配模糊规则;在相同制动工况下,考虑参数灵敏度的电动汽车电液复合回馈制动模糊控制方法可有效提高制动能量回收率。
语种：
中文
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基于多泵联合的径向柱塞泵流量脉动优化方法
作者：
张扬帆;杜荣华;付俊庆
期刊：
长沙理工大学学报(自然科学版) ,2016年13(2):80-85 ISSN：1672-9331
作者机构：
长沙理工大学 汽车与机械工程学院,湖南 长沙,410004;[张扬帆; 杜荣华; 付俊庆] 长沙理工大学
关键词：
径向柱塞泵流量脉动;双泵并联;主动抑制;瞬时流量
摘要：
针对径向柱塞泵在工作中输出油液存在的固有流量脉动，介绍了一种对径向柱塞泵流量脉动进行优化的新思路，提出了一种多泵并联减小径向柱塞泵流量脉动降低液压系统噪音的新方法。通过对径向柱塞泵以及奇奇并联和偶偶并联情况下瞬时流量、脉动率的计算，推导出最佳的错位并联角度，最后在MAT—LAB环境下构建径向柱塞泵以及双泵并联情况下瞬时流量模型进行动态仿真。仿真结果表明，双泵在错位并联的情况下输出油液的脉动率仅为单泵的1／4，显示了该方法在减小径向柱塞泵流量脉动方面的可行性和有效性。
语种：
中文
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