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关键词

优化 18

高速铁路 14

多目标优化 9

优化设计 8

遗传算法 6

稳健设计 4

不确定性 3

京沪高速铁路 3

一阶分析法 2

中国高速铁路 2

五品联动 2

仿真 2

仿真优化 2

优化调度 2

分布式优化 2

创新 2

动力学 2

可靠性灵敏度 2

磁悬浮列车 2

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Robust train speed trajectory optimization: A stochastic constrained shortest path approach

Li WANG, Lixing YANG, Ziyou GAO, Yeran HUANG

《工程管理前沿(英文)》 2017年 第4卷 第4期   页码 408-417 doi: 10.15302/J-FEM-2017042

摘要: Train speed trajectory optimization is a significant issue in railway traffic systems, and it plays a key role in determining energy consumption and travel time of trains. Due to the complexity of real-world operational environments, a variety of factors can lead to the uncertainty in energy-consumption. To appropriately characterize the uncertainties and generate a robust speed trajectory, this study specifically proposes distance-speed networks over the inter-station and treats the uncertainty with respect to energy consumption as discrete sample-based random variables with correlation. The problem of interest is formulated as a stochastic constrained shortest path problem with travel time threshold constraints in which the expected total energy consumption is treated as the evaluation index. To generate an approximate optimal solution, a Lagrangian relaxation algorithm combined with dynamic programming algorithm is proposed to solve the optimal solutions. Numerical examples are implemented and analyzed to demonstrate the performance of proposed approaches.

关键词: train speed trajectory optimization     railway operation     stochastic programming    

Robust energy-efficient train speed profile optimization in a scenario-based position–time–speed network

《工程管理前沿(英文)》 2021年 第8卷 第4期   页码 595-614 doi: 10.1007/s42524-021-0173-1

摘要: Train speed profile optimization is an efficient approach to reducing energy consumption in urban rail transit systems. Different from most existing studies that assume deterministic parameters as model inputs, this paper proposes a robust energy-efficient train speed profile optimization approach by considering the uncertainty of train modeling parameters. Specifically, we first construct a scenario-based position–time–speed (PTS) network by considering resistance parameters as discrete scenario-based random variables. Then, a percentile reliability model is proposed to generate a robust train speed profile, by which the scenario-based energy consumption is less than the model objective value at α confidence level. To solve the model efficiently, we present several algorithms to eliminate the infeasible nodes and arcs in the PTS network and propose a model reformulation strategy to transform the original model into an equivalent linear programming model. Lastly, on the basis of our field test data collected in Beijing metro Yizhuang line, a series of experiments are conducted to verify the effectiveness of the model and analyze the influences of parameter uncertainties on the generated train speed profile.

关键词: robust train speed profile     percentile reliability model     scenario-based position–time–speed network     mixed-integer programming    

高速列车转向架技术研究

赵明花,梁树林,宋春元

《中国工程科学》 2015年 第17卷 第4期   页码 53-62

摘要:

高速铁路运营对转向架技术提出了更高要求,为能设计出性能更优越的动车组转向架,调查了中国高速动车组的线路条件、动车组的车轮踏面磨耗情况,分析轮轨匹配关系;动力学分析中考虑了转臂节点、抗蛇行减振器、空气弹簧等部件的非线性特性,橡胶、减振器等减振元件高低温变化条件下车辆参数的变化,电机弹性悬挂方式等,在实际轮轨匹配关系基础上建立了车辆系统动力学模型。动力学系统仿真选择了最优悬挂参数,结合部件台架测试对悬挂元件进行了工程化设计;为掌握转向架服役周期内关键部件可靠性,对运用动车组转向架进行了大量的动应力测试,系统分析了中国无砟轨道条件下转向架主要承载区域载荷随车辆运营周期、不同气候条件、不同线路条件下的变化趋势,建立了中国高速列车载荷谱体系。通过结构、悬挂、传动、制动、焊接、降噪、轮轨等系统集成,形成高速列车转向架技术体系。

关键词: 高速列车;轮轨关系;系统动力学;载荷谱;结构优化    

Machine learning for fault diagnosis of high-speed train traction systems: A review

《工程管理前沿(英文)》 doi: 10.1007/s42524-023-0256-2

摘要: High-speed trains (HSTs) have the advantages of comfort, efficiency, and convenience and have gradually become the mainstream means of transportation. As the operating scale of HSTs continues to increase, ensuring their safety and reliability has become more imperative. As the core component of HST, the reliability of the traction system has a substantially influence on the train. During the long-term operation of HSTs, the core components of the traction system will inevitably experience different degrees of performance degradation and cause various failures, thus threatening the running safety of the train. Therefore, performing fault monitoring and diagnosis on the traction system of the HST is necessary. In recent years, machine learning has been widely used in various pattern recognition tasks and has demonstrated an excellent performance in traction system fault diagnosis. Machine learning has made considerably advancements in traction system fault diagnosis; however, a comprehensive systematic review is still lacking in this field. This paper primarily aims to review the research and application of machine learning in the field of traction system fault diagnosis and assumes the future development blueprint. First, the structure and function of the HST traction system are briefly introduced. Then, the research and application of machine learning in traction system fault diagnosis are comprehensively and systematically reviewed. Finally, the challenges for accurate fault diagnosis under actual operating conditions are revealed, and the future research trends of machine learning in traction systems are discussed.

关键词: high-speed train     traction systems     machine learning     fault diagnosis    

高速动车组列车牵引仿真计算技术研究

康熊

《中国工程科学》 2011年 第13卷 第1期   页码 62-68

摘要:

随着我国高速铁路的发展,高速动车组列车牵引仿真计算具有重要意义。对高速动车组的牵引仿真计算的方法进行了研究,分析了与普通列车牵引计算的区别及相关的关键理论。介绍了自主研发的牵引仿真系统的构成和功能。以京沪高速铁路为计算实例,对4种不同的运行方案进行了仿真计算,对线路中的电分相的设置和影响进行了计算分析,并以京沪高速铁路先导试验段的冲高速试验为对象进行了模拟仿真。多次实际应用表明提出的高速动车组牵引仿真计算的方法具有良好的仿真精度和实用意义, 可以为我国高速铁路工程建设提供有效的手段,并据此提出了今后的发展方向。

关键词: 高速     动车组     牵引     仿真计算    

Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0706-2

摘要: Multiobjective trajectory planning is still face challenges due to certain practical requirements and multiple contradicting objectives optimized simultaneously. In this paper, a multiobjective trajectory optimization approach that sets energy consumption, execution time, and excavation volume as the objective functions is presented for the electro-hydraulic shovel (EHS). The proposed cubic polynomial S-curve is employed to plan the crowd and hoist speed of EHS. Then, a novel hybrid constrained multiobjective evolutionary algorithm based on decomposition is proposed to deal with this constrained multiobjective optimization problem. The normalization of objectives is introduced to minimize the unfavorable effect of orders of magnitude. A novel hybrid constraint handling approach based on -constraint and the adaptive penalty function method is utilized to discover infeasible solution information and improve population diversity. Finally, the entropy weight technique for order preference by similarity to an ideal solution method is used to select the most satisfied solution from the Pareto optimal set. The performance of the proposed strategy is validated and analyzed by a series of simulation and experimental studies. Results show that the proposed approach can provide the high-quality Pareto optimal solutions and outperforms other trajectory optimization schemes investigated in this article.

关键词: trajectory planning     electro-hydraulic shovel     cubic polynomial S-curve     multiobjective optimization     entropy weight technique    

Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

《工程管理前沿(英文)》 2019年 第6卷 第2期   页码 139-151 doi: 10.1007/s42524-019-0030-7

摘要: With the accelerated urbanization in China, passenger demand has dramatically increased in large cities, and traffic congestion has become serious in recent years. Developing public urban rail transit systems is an indispensable approach to overcome these problems. However, the high energy consumption of daily operations is an emerging issue due to increased rail transit networks and passenger demands. Thus, reducing the energy consumption and operational cost by using advanced optimization methodologies is an urgent task for operation managers. This work systematically introduces energy-saving approaches for urban rail transit systems in three aspects, namely, train speed profile optimization, utilization of regenerative energy, and integrated optimization of train timetable and speed profile. Future research directions in this field are also proposed to meet increasing passenger demands and network-based urban rail transit systems.

关键词: urban rail transit     energy saving     speed profile optimization     regenerative energy     train timetable    

Development progress of China’s 600 km/h high-speed magnetic levitation train

《工程管理前沿(英文)》 2022年 第9卷 第3期   页码 509-515 doi: 10.1007/s42524-022-0199-z

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关键词: 600 km/h high-speed magnetic levitation train     development history     technological innovation    

Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator

Xueping PAN, Ping JU, Feng WU, Yuqing JIN

《机械工程前沿(英文)》 2017年 第12卷 第3期   页码 367-376 doi: 10.1007/s11465-017-0429-y

摘要:

A new hierarchical parameter estimation method for doubly fed induction generator (DFIG) and drive train system in a wind turbine generator (WTG) is proposed in this paper. Firstly, the parameters of the DFIG and the drive train are estimated locally under different types of disturbances. Secondly, a coordination estimation method is further applied to identify the parameters of the DFIG and the drive train simultaneously with the purpose of attaining the global optimal estimation results. The main benefit of the proposed scheme is the improved estimation accuracy. Estimation results confirm the applicability of the proposed estimation technique.

关键词: wind turbine generator     DFIG     drive train system     hierarchical parameter estimation method     trajectory sensitivity technique    

Can the bullet train speed up climate change mitigation in China?

Han LIN, Saixing ZENG, Shilong GE, Yongtai CHEN

《工程管理前沿(英文)》 2017年 第4卷 第1期   页码 104-105 doi: 10.15302/J-FEM-2017100

摘要:

高速列车耦合大系统动力学研究

张卫华

《中国工程科学》 2015年 第17卷 第4期   页码 42-52

摘要:

根据高速铁路结构和技术特点,把高速列车以及与之相关并影响其动力学性能的线路、气流、供电和接触网等耦合系统作为一个统一的大系统,通过建立高速列车、线路、弓网及供电等子系统动力学模型,以及轮轨、弓网、流固和机电等耦合关系模型,形成高速列车耦合大系统动力学模型。针对高速列车运行模拟要求,给出基于循环变量方法的列车动力学建模及计算方法、基于滑移模型的车线耦合计算方法、基于松弛因子的流固耦合计算方法,实现高速列车耦合大系统动力学仿真。

关键词: 高速铁路;高速列车;动力学;耦合关系;仿真计算    

中国需要高速磁悬浮列车

严陆光

《中国工程科学》 2000年 第2卷 第5期   页码 8-13

摘要:

20世纪,高速磁悬浮列车的发展令人瞩目,高速磁悬浮列车技术已成熟到可建造实用运营线的程度,从而使人类地面客运的速度可望在21世纪中前期达到550km/h的新水平。文章简要叙述了高速磁悬浮列车的发展、特点与优势,它主要适用于长距离、大城市间、大流量的客运。从我国的国情与未来需求出发,指出它最适合于我国高速客运专线网的发展,就京沪高速铁路而言,也比高速轮轨列车有着明显的优越性,发展高速磁悬浮列车体系是当务之急,并对当前应抓紧试验运营线的建设等工作提出了建议。

关键词: 磁悬浮列车     高速客运     交通运输    

高速转向架技术的创新研究

张卫华

《中国工程科学》 2009年 第11卷 第10期   页码 8-18

摘要:

在介绍我国高速列车发展和创新研究平台建立的基础上,开展了引进高速动车组从轮对踏面及内侧距、线路不平顺到动车组参数的适应性研究;以提升动车组运行速度为目标,优化了京津城际铁路高速动车组的参数,并开展科学研究性试验,获得了最高运行速度394.3 km/h的高速列车运动行为及耦合系统的动力学响应特征;针对京沪高速铁路用新一代高速列车速度目标值,京津城际动车组的运用情况和无砟高架线路的不平顺谱特性,在保证更高临界速度的基础上,为了进一步提高动车组的垂向和横向动力学性能,完成了转向架结构和参数的进一步优化,实现了引进动车组的消化吸收再创新。

关键词: 高速转向架     动车组     动力学     悬挂     京津城际铁路     京沪高速铁路    

Corrigendum to “High-Speed Railway Train Timetable Conflict Prediction Based on Fuzzy Temporal

null

《工程(英文)》 2017年 第3卷 第1期   页码 150-150 doi: 10.1016/J.ENG.2017.01.002

高速列车服役性能研究

林建辉,易彩,张卫华,丁建明,刘璐,张兵

《中国工程科学》 2015年 第17卷 第4期   页码 83-89

摘要:

高速列车运行时空上的跨越所面临的振动、环境变化,使其服役状态与安全性态始终处于时变状态,给高速列车安全保障与健康维护带来极大的挑战。随着高速列车运营里程的增长,高速列车服役性能的研究成为保障我国高速列车技术持续发展的重要课题。在分析高速列车服役性能基本内容的基础上,提出了高速列车服役性能检测体系,阐明了其建设内容与方案,并发展了高速列车走行部跟踪试验技术,跟踪试验对高速列车服役性能的研究具有显著成效与提升。最后,指出了本领域今后的发展趋势及需重点关注与加强的研究工作。

关键词: 高速列车;服役性能;列车检测;跟踪试验;性能演变    

标题 作者 时间 类型 操作

Robust train speed trajectory optimization: A stochastic constrained shortest path approach

Li WANG, Lixing YANG, Ziyou GAO, Yeran HUANG

期刊论文

Robust energy-efficient train speed profile optimization in a scenario-based position–time–speed network

期刊论文

高速列车转向架技术研究

赵明花,梁树林,宋春元

期刊论文

Machine learning for fault diagnosis of high-speed train traction systems: A review

期刊论文

高速动车组列车牵引仿真计算技术研究

康熊

期刊论文

Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

期刊论文

Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

期刊论文

Development progress of China’s 600 km/h high-speed magnetic levitation train

期刊论文

Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator

Xueping PAN, Ping JU, Feng WU, Yuqing JIN

期刊论文

Can the bullet train speed up climate change mitigation in China?

Han LIN, Saixing ZENG, Shilong GE, Yongtai CHEN

期刊论文

高速列车耦合大系统动力学研究

张卫华

期刊论文

中国需要高速磁悬浮列车

严陆光

期刊论文

高速转向架技术的创新研究

张卫华

期刊论文

Corrigendum to “High-Speed Railway Train Timetable Conflict Prediction Based on Fuzzy Temporal

null

期刊论文

高速列车服役性能研究

林建辉,易彩,张卫华,丁建明,刘璐,张兵

期刊论文