检索范围:
排序: 展示方式:
Simulation analysis of pressure regulation of hydraulic thrust system on a shield tunneling machine
Zhibin LIU, Haibo XIE, Huayong YANG
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 377-382 doi: 10.1007/s11465-011-0226-y
Hydraulic thrust system is an important system in a shield tunneling machine. Pressure regulation of thrust cylinders is the most important function for thrust system during tunnel excavation. In this paper, a hydraulic thrust system is explained, and a corresponding simulation model is carried out in order to study the system characteristics. Pressure regulation of a certain group’s cylinders has little influence on regulation of the other groups’ cylinders. The influence will not affect the process much during tunnel excavation. Pump displacement may have a greater effect on pressure regulation and oil supply flow rate should be adaptive to the system’s demand. A exacting situation is simulated to explain how pressure regulation works during tunnel excavation.
关键词: tunnel hydraulic thrust system pressure regulation simulation
Design approach for single piston hydraulic free piston diesel engines
Wei WU, Shihua YUAN, Jibin HU, Chongbo JING,
《机械工程前沿(英文)》 2009年 第4卷 第4期 页码 371-378 doi: 10.1007/s11465-009-0069-y
关键词: free piston engine (FPE) diesel engine hydraulic equipment simulation experiment
《环境科学与工程前沿(英文)》 2022年 第16卷 第12期 doi: 10.1007/s11783-022-1591-y
● A novel PRB configuration based on passive convergent flow effect was proposed.
关键词: Passive convergence-permeable reactive barrier (PC-PRB) Permeable reactive barrier configuration Numerical simulation Hydraulic performance evaluation Sensitivity analysis
Stable expression and control parameters in the numerical simulation of unsaturated flow
Zhiyuan ZHANG; Xu LI; Yongkang WU; Xiaokang LI
《结构与土木工程前沿(英文)》 2022年 第16卷 第12期 页码 1501-1514 doi: 10.1007/s11709-022-0893-2
关键词: Richards’ equation sensitivity analysis unsaturated soil hydraulic diffusivity seepage simulation
CFD Simulation of thermal hydraulic characteristics in a typical upper plenum of RPV
Mingjun WANG, Lianfa WANG, Yingjie WANG, Wenxi TIAN, Jian DENG, Guanghui SU, Suizheng QIU
《能源前沿(英文)》 2021年 第15卷 第4期 页码 930-945 doi: 10.1007/s11708-021-0728-1
关键词: pressurized water reactor (PWR) upper plenum internal structures temperature distribution computational fluid dynamics (CFD)
岳文辉,刘德顺,伍先明,朱萍玉,李夕兵
《中国工程科学》 2007年 第9卷 第8期 页码 57-61
介绍了以普通水作为传动、支撑推进、排屑和润滑介质的环境友好型全水压凿岩机;建立了以弹性杆、弹簧为基本单元的冲击凿岩机 波动力学模型;对YST–25全水压凿岩机进行了动态数值仿真与分析。研究结果表明:活塞最大压应力为102 MPa,最大拉应力为28 MPa,满足 了强度设计要求;钎杆中的应力比活塞的大;尽量减小活塞的截面积变化有利于延长活塞寿命;为了保证凿岩速度和能量传递效率,YST–25凿 岩机宜于在中硬到硬岩中钻进。这为环境友好型全水压冲击凿岩机的改进设计和效能评估提供了依据。
A novel methodology for forecasting gas supply reliability of natural gas pipeline systems
Feng CHEN, Changchun WU
《能源前沿(英文)》 2020年 第14卷 第2期 页码 213-223 doi: 10.1007/s11708-020-0672-5
关键词: natural gas pipeline system gas supply reliability evaluation index Monte Carlo method hydraulic simulation
Resistance of large caisson in floating transport considering the influence of air
Junjie ZHENG, Zongzhe LI, Dongan ZHAO, Qiang MA, Rongjun ZHANG,
《结构与土木工程前沿(英文)》 2010年 第4卷 第3期 页码 331-338 doi: 10.1007/s11709-010-0085-3
关键词: large-scale caisson numerical simulation hydraulic resistance air resistance
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
关键词: trajectory planning electro-hydraulic shovel cubic polynomial S-curve multiobjective optimization entropy weight technique
Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG
《能源前沿(英文)》 2020年 第14卷 第1期 页码 127-138 doi: 10.1007/s11708-020-0661-8
关键词: laminar flow hydraulic entrance length super hydrophobic surface slip length hydraulic diameter
钟登华,朱慧蓉,郑家祥
《中国工程科学》 2003年 第5卷 第11期 页码 65-70
溪洛渡水电站是在金沙江拟建的最大水电站,为直观准确地描述其施工总布置设计所涉及的各施工环节之间复杂的动态空间关系,将施工总布置系统分为若干子系统,对整个设计施工过程进行动态可视化图形仿真研究。设计3维动态图形仿真数据流向,将溪洛渡施工总布置动态图形仿真数据分为空间数据和属性数据,以GIS为平台组织数据结构,构造施工总布置3维动态可视化数字模型;在3维动态可视化数字基础上实现施工总布置3维动态可视化图形仿真演示和动态图形仿真数据可视化查询,给施工总布置设计与决策提供一个科学、直观的可视化分析途径。
Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom
《环境科学与工程前沿(英文)》 2022年 第16卷 第10期 doi: 10.1007/s11783-022-1564-1
● A new model for bloom control in open land scape water was constructed.
关键词: Reclaimed water landscape Algal bloom Nitrogen and phosphorus Hydraulic retention time Threshold Control model
Hydromechanical model for hydraulic fractures using XFEM
Bo HE
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 240-249 doi: 10.1007/s11709-018-0490-6
Review of fluid and control technology of hydraulic wind turbines
Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 312-320 doi: 10.1007/s11465-017-0433-2
This study examines the development of the fluid and control technology of hydraulic wind turbines. The current state of hydraulic wind turbines as a new technology is described, and its basic fluid model and typical control method are expounded by comparing various study results. Finally, the advantages of hydraulic wind turbines are enumerated. Hydraulic wind turbines are expected to become the main development direction of wind turbines.
关键词: wind turbine hydraulic system fluid model control technology
标题 作者 时间 类型 操作
Simulation analysis of pressure regulation of hydraulic thrust system on a shield tunneling machine
Zhibin LIU, Haibo XIE, Huayong YANG
期刊论文
Design approach for single piston hydraulic free piston diesel engines
Wei WU, Shihua YUAN, Jibin HU, Chongbo JING,
期刊论文
Passive convergence-permeable reactive barrier (PC-PRB): An effective configuration to enhance hydraulic
期刊论文
Stable expression and control parameters in the numerical simulation of unsaturated flow
Zhiyuan ZHANG; Xu LI; Yongkang WU; Xiaokang LI
期刊论文
CFD Simulation of thermal hydraulic characteristics in a typical upper plenum of RPV
Mingjun WANG, Lianfa WANG, Yingjie WANG, Wenxi TIAN, Jian DENG, Guanghui SU, Suizheng QIU
期刊论文
A novel methodology for forecasting gas supply reliability of natural gas pipeline systems
Feng CHEN, Changchun WU
期刊论文
Resistance of large caisson in floating transport considering the influence of air
Junjie ZHENG, Zongzhe LI, Dongan ZHAO, Qiang MA, Rongjun ZHANG,
期刊论文
Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic
Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG
期刊论文
Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom
期刊论文