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Value and governance of high-speed railway
Xiaoyan LIN, Zehua ZHANG, Meng WANG
《工程管理前沿(英文)》 2017年 第4卷 第4期 页码 463-482 doi: 10.15302/J-FEM-2017054
关键词: high-speed railway value communication value high-speed railway value governance governance path upgrade
CR-Fuxing high-speed EMU series
《工程管理前沿(英文)》 页码 742-748 doi: 10.1007/s42524-023-0281-1
关键词: CR-Fuxing series high-speed EMU innovation key system digitalized collaborative design engineering management
Exploration on Engineering Management Practice of China’s High Speed Railways
Yong-fu Sun
《工程管理前沿(英文)》 2014年 第1卷 第3期 页码 232-240 doi: 10.15302/J-FEM-2014043
关键词: high speed railway engineering management practice innovation
Development of an analytical model to estimate the churning losses in high-speed axial piston pumps
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-021-0671-1
关键词: axial piston pump rotating parts high rotational speed churning losses drag torque
Comprehensive measurement and evaluation system of high-speed motorized spindle
Dashuai ZHOU, Liangsheng WU, Yichuan XIAO
《机械工程前沿(英文)》 2011年 第6卷 第2期 页码 263-269 doi: 10.1007/s11465-011-0217-z
Reducing the manufacturing time is the trend of high-precision manufacturing, and the precision of a work-piece is very important for manufacturing industry. The high-speed motorized spindle is the most critical part and becoming more widely used in the machine tool at present, and its precision may affect the overall performance of high-speed cutting. Most of the studies on high-speed cutting are focused on the cutting force, the vibration of the spindle and effects of the spindle’s thermal deformations; hence, how to roundly measure and objectively evaluate high-speed spindle is an imminence question of it because the comprehensive dynamic properties and evaluation system of spindles directly affect the cutting ability of the whole machine tool before they are manufactured. This paper presents a comprehensive measurement and evaluation system of high-speed motorized spindle, which reflects the overall performance of motorized spindle and bases on international standard.
关键词: high-speed motorized spindle comprehensive prope rties evaluation system
何华武
《中国工程科学》 2009年 第11卷 第5期 页码 23-30
高速道岔是高速铁路轨道结构的关键,其结构与状态对列车运行安全和运行品质具有重大影响。文章介绍了高速道岔设计参数和平面线形,扣件、岔枕、道岔转换系统等部件主要结构特征,高速道岔设计理论,相关技术条件及取得的创新成果,对于中国高速铁路道岔的进一步研制、试验验证及推广使用具有重要的指导意义。
Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China
Guo LIU, Kunhui YE
《工程管理前沿(英文)》 2019年 第6卷 第3期 页码 327-335 doi: 10.1007/s42524-019-0051-2
关键词: high-speed rail nodal zone interactive effects sustainable urbanization China
Case modifying of high-speed cutting database based on CSP and similarity theory
Kejun XIANG, Zhanqiang LIU, Xing AI
《机械工程前沿(英文)》 2009年 第4卷 第1期 页码 83-87 doi: 10.1007/s11465-009-0014-0
关键词: high-speed cutting database case modifying CSP similarity calculation
Being good or being known: International reputation of high-speed railway enterprises
《工程管理前沿(英文)》 页码 455-466 doi: 10.1007/s42524-023-0250-8
关键词: high-speed railway international reputation being good being known structural equation modeling
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
关键词: 600 km/h high-speed magnetic levitation train development history technological innovation
Integrated slipper retainer mechanism to eliminate slipper wear in high-speed axial piston pumps
《机械工程前沿(英文)》 doi: 10.1007/s11465-021-0657-z
关键词: axial piston pump high speed slipper wear slipper design retainer lubrication model
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
关键词: high-speed train traction systems machine learning fault diagnosis
Innovation evolution of China’s high-speed rail industry
Jin CHEN, Liang MEI
《工程管理前沿(英文)》 2018年 第5卷 第4期 页码 548-552 doi: 10.15302/J-FEM-2018208
Evaluation of the power consumption of a high-speed parallel robot
Gang HAN, Fugui XIE, Xin-Jun LIU
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 167-178 doi: 10.1007/s11465-017-0456-8
An inverse dynamic model of a high-speed parallel robot is established based on the virtual work principle. With this dynamic model, a new evaluation method is proposed to measure the power consumption of the robot during pick-and-place tasks. The power vector is extended in this method and used to represent the collinear velocity and acceleration of the moving platform. Afterward, several dynamic performance indices, which are homogenous and possess obvious physical meanings, are proposed. These indices can evaluate the power input and output transmissibility of the robot in a workspace. The distributions of the power input and output transmissibility of the high-speed parallel robot are derived with these indices and clearly illustrated in atlases. Furtherly, a low-power-consumption workspace is selected for the robot.
关键词: high-speed parallel robot dynamic model power consumption evaluation method power vector
Design of noise-reduction seats for high-speed trains
Xiaojun DENG, Yanju ZHAO, Haijin ZHANG, Renzhong SHUAI, Leiwei ZHU
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 385-389 doi: 10.1007/s11465-017-0438-x
Noise-reduction seats have been successfully used in concert halls, theaters, and other places that reduce noise. In this study, a new noise-reduction seat design was proposed for high-speed trains, which have unique interior noise spectral characteristics. First, before the noise-reduction seat models were fabricated, the parameters of high-performance sound-absorbing materials and perforated plates were selected by conducting a standing-wave tube test. The sound-absorption effects of the noise-reduction seats and normal seats were investigated and compared in a reverberation chamber. Test results showed that, compared with normal seats, the noise-reduction seats obtained a significantly improved sound-absorption coefficient in the entire frequency band. Furthermore, the test results were used to establish a simulation model for calculation, and the simulation results proved that the noise-reduction seats substantially reduced the noise in an entire train car. Finally, the noise-reduction seats were fabricated and installed in a full train car of an actual high-speed train. The test results showed that, compared with the normal seats, the noise-reduction seats decreased the noise level at a standard point in the passenger car by 1.5 dB. Therefore, the noise-reduction seats are effective in noise reduction.
关键词: high-speed train sound-absorbing materials perforated board noise-reduction seats
标题 作者 时间 类型 操作
Development of an analytical model to estimate the churning losses in high-speed axial piston pumps
期刊论文
Comprehensive measurement and evaluation system of high-speed motorized spindle
Dashuai ZHOU, Liangsheng WU, Yichuan XIAO
期刊论文
Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China
Guo LIU, Kunhui YE
期刊论文
Case modifying of high-speed cutting database based on CSP and similarity theory
Kejun XIANG, Zhanqiang LIU, Xing AI
期刊论文
Integrated slipper retainer mechanism to eliminate slipper wear in high-speed axial piston pumps
期刊论文
Evaluation of the power consumption of a high-speed parallel robot
Gang HAN, Fugui XIE, Xin-Jun LIU
期刊论文