检索范围:
排序: 展示方式:
Stress field near circular-arc interface crack tip based on electric saturation concept
Longchao DAI, Xinwei WANG
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 320-325 doi: 10.1007/s11465-009-0042-9
关键词: piezoelectric material arc crack strip saturation stress intensity factor
Development of a new wear resistant coating by arc spraying of a steel-based cored wire
Lidong ZHAO, Pia KUTSCHMANN, Binyou FU, Dingyong HE
《机械工程前沿(英文)》 2009年 第4卷 第1期 页码 1-4 doi: 10.1007/s11465-009-0012-2
关键词: amorphous phase arc spraying microstructure wear cored wire
Ming CHEN, Yuezhou MA, Yuan HAO,
《机械工程前沿(英文)》 2010年 第5卷 第1期 页码 98-105 doi: 10.1007/s11465-009-0088-8
关键词: micro-arc oxidation local arc discharge pulse power supply magnesium alloy
Submerged arc plasma system combined with ozone oxidation for the treatment of wastewater containing
《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1384-0
• Submerged arc plasma was introduced in terms of wastewater treatment.
关键词: Thermal plasma Submerged arc plasma Wastewater Ozone Phenol Highly energetic electron
Xianming SHI
《结构与土木工程前沿(英文)》 2016年 第10卷 第1期 页码 1-11 doi: 10.1007/s11709-016-0312-7
关键词: arc sprayed Zn anode replacement reinforced concrete bridge preservation neural networks surface profile
Zhenyun DUAN, Houjun CHEN, Zhilan JU, Jian LIU
《机械工程前沿(英文)》 2012年 第7卷 第3期 页码 312-321 doi: 10.1007/s11465-012-0308-5
In this paper, loxodromic-type normal circular-arc spiral bevel gear is proposed as a novel application of the circular-arc tooth profile at the gear transmission with intersecting axes. Based on the principle of molding-surface conjugation, the study develops a mathematical model for the tooth alignment curve and the computational flow at the design stage to enable the generation of the tooth surface. Machining of the tooth surface is then carried out to determine the interference-free tool path of the numerical control (NC). Moreover, a pair of loxodromic-type normal circular-arc spiral bevel gears is manufactured on computer numerical control (CNC) machine tools. The proposed theory and method are experimentally investigated, and the obtained results primarily reflect the superior performance of the proposed novel gear.
关键词: loxodrome circular-arc tooth profile Wildhaber-Novikov (W-N) gear spiral bevel gear
Modelling and diagnostics of multiple cathodes plasma torch system for plasma spraying
Kirsten BOBZIN, Nazlim BAGCIVAN, Lidong ZHAO, Ivica PETKOVIC, Jochen SCHEIN, Karsten HARTZ-BEHREND, Stefan KIRNER, José-Luis MARQUéS, Günter FORSTER
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 324-331 doi: 10.1007/s11465-011-0125-2
Usage of a multiple-arcs system has significantly improved process stability and coating properties in air plasma spraying. However, there are still demands on understanding and controlling the physical process to determine process conditions for reproducible coating quality and homogeneity of coating microstructure. The main goal of this work is the application of numerical simulation for the prediction of the temperature profiles at the torch outlet for real process conditions. Behaviour of the gas flow and electric arcs were described in a three-dimensional numerical model. The calculated results showed the characteristic triangular temperature distribution at the torch nozzle outlet caused by three electric arcs. These results were compared with experimentally determined temperature distributions, which were obtained with specially developed computed tomography equipment for reconstructing the emissivity and temperature distribution of the plasma jet close to the torch exit. The calculated results related to temperature values and contours were verified for the most process parameters with experimental ones.
关键词: plasma spraying electric arc three-cathode plasma torch numerical simulation computed tomography
荣传新,王秀喜,程桦
《中国工程科学》 2005年 第7卷 第7期 页码 43-49
对高强钢筋混凝土预制弧板井壁结构的研究表明,实验结果与数值计算结果基本一致。高强钢筋混凝土预制弧板井壁结构具有很高的承载能力,影响其承载能力的主要因素依次为混凝土的强度等级、厚径比和配筋率。在均布荷载作用下,混凝土的强度等级提高10MPa,极限承载力提高1.26MPa。厚径比每增加1%,极限承载力增加0.85 MPa。增大配筋率对提高其极限承载力作用不大,配筋率增大3倍,极限承载力只增加了0.1MPa。
关键词: 高强钢筋混凝土预制弧板井壁 力学特性 有限元法 ANSYS
Techno-economic analysis of the adoption of electric vehicles
Donald KENNEDY, Simon P. PHILBIN
《工程管理前沿(英文)》 2019年 第6卷 第4期 页码 538-550 doi: 10.1007/s42524-019-0048-x
关键词: BEV battery powered electric vehicle environmental impact of electric vehicles techno-economic analysis gasoline versus electric powered cars diesel versus electric cars consumer behaviour
ARC welding method for bonding steel with aluminum
Zhenyang LU, Pengfei HUANG, Wenning GAO, Yan LI, Hanpeng ZHANG, Shuyan YIN
《机械工程前沿(英文)》 2009年 第4卷 第2期 页码 134-146 doi: 10.1007/s11465-009-0033-x
关键词: joining of steel and aluminum low energy input welding arc welding fusion welding – brazing
Stem cell niches and endogenous electric fields in tissue repair
null
《医学前沿(英文)》 2011年 第5卷 第1期 页码 40-44 doi: 10.1007/s11684-011-0108-z
Adult stem cells are responsible for homeostasis and repair of many tissues. Endogenous adult stem cells reside in certain regions of organs, known as the stem cell niche, which is recognized to have an important role in regulating tissue maintenance and repair. In wound healing and tissue repair, stem cells are mobilized and recruited to the site of wound, and participate in the repair process. Many regulatory factors are involved in the stem cell-based repair process, including stem cell niches and endogenous wound electric fields, which are present at wound tissues and proved to be important in guiding wound healing. Here we briefly review the role of stem cell niches and endogenous electric fields in tissue repair, and hypothesize that endogenous electric fields become part of stem cell niche in the wound site.
黄石生,薛家祥,余文松,陈延明
《中国工程科学》 2000年 第2卷 第4期 页码 70-74
重点介绍了弧焊逆变器新的发展方向--软开关相移PWM控制技术,给出了一个具体的电路实例和试验结果;分析了弧焊逆变器动态过程的仿真技术和模糊逻辑控制方法,为新型弧焊逆变器的研制提供了一种新思路。
A novel soft-switching twin arc pulse MAG welding inverter
WANG Zhenmin, XUE Jiaxiang, WANG Fuguang, HUANG Shisheng
《机械工程前沿(英文)》 2007年 第2卷 第2期 页码 224-227 doi: 10.1007/s11465-007-0039-1
关键词: high-speed control computer experiment indicate platform
Dilution rate and microstructure of TIG arc Ni-Al powder surfacing layer
SHAN Jiguo, DONG Wei, TAN Wenda, ZHANG Di, REN Jialie
《机械工程前沿(英文)》 2007年 第2卷 第1期 页码 20-24 doi: 10.1007/s11465-007-0003-0
关键词: decrease Ni-Al surfacing parameter temperature surfacing process
Maiquel DE BRITO,Lauren THÉVIN,Catherine GARBAY,Olivier BOISSIER,Jomi Fred HÜBNER
《信息与电子工程前沿(英文)》 2016年 第17卷 第4期 页码 309-324 doi: 10.1631/FITEE.1500369
关键词: Situated artificial institutions (SAIs) Normative system Tangible interaction Crisis management
标题 作者 时间 类型 操作
Stress field near circular-arc interface crack tip based on electric saturation concept
Longchao DAI, Xinwei WANG
期刊论文
Development of a new wear resistant coating by arc spraying of a steel-based cored wire
Lidong ZHAO, Pia KUTSCHMANN, Binyou FU, Dingyong HE
期刊论文
Local arc discharge mechanism and requirements of power supply in micro-arc oxidation of magnesium alloy
Ming CHEN, Yuezhou MA, Yuan HAO,
期刊论文
Submerged arc plasma system combined with ozone oxidation for the treatment of wastewater containing
期刊论文
Experimental and modeling studies on installation of arc sprayed Zn anodes for protection of reinforced
Xianming SHI
期刊论文
Mathematical model and manufacture programming of loxodromic-type normal circular-arc spiral bevel gear
Zhenyun DUAN, Houjun CHEN, Zhilan JU, Jian LIU
期刊论文
Modelling and diagnostics of multiple cathodes plasma torch system for plasma spraying
Kirsten BOBZIN, Nazlim BAGCIVAN, Lidong ZHAO, Ivica PETKOVIC, Jochen SCHEIN, Karsten HARTZ-BEHREND, Stefan KIRNER, José-Luis MARQUéS, Günter FORSTER
期刊论文
ARC welding method for bonding steel with aluminum
Zhenyang LU, Pengfei HUANG, Wenning GAO, Yan LI, Hanpeng ZHANG, Shuyan YIN
期刊论文
A novel soft-switching twin arc pulse MAG welding inverter
WANG Zhenmin, XUE Jiaxiang, WANG Fuguang, HUANG Shisheng
期刊论文
Dilution rate and microstructure of TIG arc Ni-Al powder surfacing layer
SHAN Jiguo, DONG Wei, TAN Wenda, ZHANG Di, REN Jialie
期刊论文