检索范围:
排序: 展示方式:
Mohammad Javad REZVANIL, Mohammad Hossein KARGARNOVIN, Davood YOUNESIAN
《机械工程前沿(英文)》 2011年 第6卷 第4期 页码 409-418 doi: 10.1007/s11465-011-0245-8
The response of an infinite Timoshenko beam subjected to a harmonic moving load based on the third-order shear deformation theory (TSDT) is studied. The beam is made of laminated composite, and located on a Pasternak viscoelastic foundation. By using the principle of total minimum potential energy, the governing partial differential equations of motion are obtained. The solution is directed to compute the deflection and bending moment distribution along the length of the beam. Also, the effects of two types of composite materials, stiffness and shear layer viscosity coefficients of foundation, velocity and frequency of the moving load over the beam response are studied. In order to demonstrate the accuracy of the present method, the results TSDT are compared with the previously obtained results based on first-order shear deformation theory, with which good agreements are observed.
关键词: timoshenko composite beam pasternak viscoelastic foundation third-order shear deformation theory (TSDT) harmonic moving load
Multi-harmonic forced vibration and resonance of simple beams to moving vehicles
《结构与土木工程前沿(英文)》 页码 981-993 doi: 10.1007/s11709-023-0979-5
关键词: forced vibration linear Euler beam moving load harmonic structure frequency modulation end restraints
Zhuchao YE, Huaihai CHEN,
《机械工程前沿(英文)》 2009年 第4卷 第4期 页码 397-400 doi: 10.1007/s11465-009-0044-7
关键词: simply supported beam moving mass (MM) transverse vibration moving finite element (MFE)
Review of pantograph and catenary interaction
Weihua ZHANG, Dong ZOU, Mengying TAN, Ning ZHOU, Ruiping LI, Guiming MEI
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 311-322 doi: 10.1007/s11465-018-0494-x
The application of electrified railway directly promotes relevant studies on pantograph-catenary interaction. With the increase of train running speed, the operating conditions for pantograph and catenary have become increasingly complex. This paper reviews the related achievements contributed by groups and institutions around the world. This article specifically focuses on three aspects: The dynamic characteristics of the pantograph and catenary components, the systems’ dynamic properties, and the environmental influences on the pantograph-catenary interaction. In accordance with the existing studies, future research may prioritize the task of identifying the mechanism of contact force variation. This kind of study can be carried out by simplifying the pantograph-catenary interaction into a moving load problem and utilizing the theory of matching mechanical impedance. In addition, developing a computational platform that accommodates environmental interferences and multi-field coupling effects is necessary in order to further explore applications based on fundamental studies.
关键词: electrified railway pantograph and catenary interaction contact force variation moving load problem mechanical impedance multi-field
Dynamic prediction of moving trajectory in pipe jacking: GRU-based deep learning framework
《结构与土木工程前沿(英文)》 页码 994-1010 doi: 10.1007/s11709-023-0942-5
关键词: dynamic prediction moving trajectory pipe jacking GRU deep learning
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 765-781 doi: 10.1007/s11465-021-0655-1
关键词: generalized parallel mechanism configurable moving platform gripper mechanism type synthesis kinematic analysis
冯兆祥,陈亮,缪长青
《中国工程科学》 2012年 第14卷 第5期 页码 80-84
针对泰州大桥开展结构动力特性计算,分析了不同移动速度以及不同移动荷载大小对于三塔两跨悬索桥结构动力响应的影响。结果表明,三塔两跨悬索桥的一阶竖弯振动基频约为0.08 Hz,远低于载重汽车的固有频率,不会形成共振条件。简单的移动荷载作用下三塔两跨连续支承悬索桥的内力、位移响应与同等静力荷载作用效果比较接近。移动荷载的质量越大、速度越大,结构的内力、位移响应就越大,并与车重呈近似正比例关系。结构内力、位移的荷载放大系数不随移动荷载质量的大小而改变。
Effects of carrier-attached biofilm on oxygen transfer efficiency in a moving bed biofilm reactor
Yanling WEI,Xunfei YIN,Lu QI,Hongchen WANG,Yiwei GONG,Yaqian LUO
《环境科学与工程前沿(英文)》 2016年 第10卷 第3期 页码 569-577 doi: 10.1007/s11783-015-0822-x
关键词: carrier biofilm oxygen transfer efficiency moving bed biofilm reactor
Pengfei LIU, Dawei WANG, Frédéric OTTO, Markus OESER
《结构与土木工程前沿(英文)》 2018年 第12卷 第2期 页码 215-221 doi: 10.1007/s11709-017-0401-2
关键词: semi-analytical finite element method bearing capacity asphalt pavements moving loads dynamic response
The investigation of pressure drop in moving-beds
CHEN Yunhua, ZHU Xuedong, WU Yongqiang, ZHU Zibin
《化学科学与工程前沿(英文)》 2007年 第1卷 第2期 页码 184-189 doi: 10.1007/s11705-007-0034-4
关键词: development cross-flow velocity superficial qualitative account stabilization
Numerical analysis of hydrodynamic process of circular-translational-moving polishing (CTMP)
ZHAI Wenjie, LIU Changxiong, LIANG Yingchun
《机械工程前沿(英文)》 2008年 第3卷 第4期 页码 441-448 doi: 10.1007/s11465-008-0074-6
关键词: numerical analysis practical CTMP circular-translational-moving polishing CTMP different
Akshay Jain, Zhen He
《环境科学与工程前沿(英文)》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1052-9
Resource recovery from wastewater is a key function of bioelectrochemical systems. NEW resources to recover include Nutrient, Energy, and Water. Identifying proper application niches can guide BES research and development. More efforts should be invested to the application of recovered resources. A mindset for energy performance and system scaling is critically important.
关键词: Bioelectrochemical systems Resource recovery Wastewater treatment Energy Nutrients
《能源前沿(英文)》 2021年 第15卷 第4期 页码 959-973 doi: 10.1007/s11708-021-0753-0
关键词: molten metal spreading solidification particle method severe accident fuel debris decommissioning
Continuous size fractionation of magnetic nanoparticles by using simulated moving bed chromatography
Carsten-Rene Arlt, Dominik Brekel, Stefan Neumann, David Rafaja, Matthias Franzreb
《化学科学与工程前沿(英文)》 2021年 第15卷 第5期 页码 1346-1355 doi: 10.1007/s11705-021-2040-3
关键词: magnetic chromatography simulated moving bed chromatography magnetic nanoparticles size fractionation
标题 作者 时间 类型 操作
Dynamic analysis of composite beam subjected to harmonic moving load based on the third-order shear deformation
Mohammad Javad REZVANIL, Mohammad Hossein KARGARNOVIN, Davood YOUNESIAN
期刊论文
Vibration analysis of a simply supported beam under moving mass based on moving finite element method
Zhuchao YE, Huaihai CHEN,
期刊论文
Review of pantograph and catenary interaction
Weihua ZHANG, Dong ZOU, Mengying TAN, Ning ZHOU, Ruiping LI, Guiming MEI
期刊论文
Design and analysis of the gripper mechanism based on generalized parallel mechanisms with configurable moving
期刊论文
Effects of carrier-attached biofilm on oxygen transfer efficiency in a moving bed biofilm reactor
Yanling WEI,Xunfei YIN,Lu QI,Hongchen WANG,Yiwei GONG,Yaqian LUO
期刊论文
of semi-analytical finite element method to analyze the bearing capacity of asphalt pavements under moving
Pengfei LIU, Dawei WANG, Frédéric OTTO, Markus OESER
期刊论文
The investigation of pressure drop in moving-beds
CHEN Yunhua, ZHU Xuedong, WU Yongqiang, ZHU Zibin
期刊论文
Numerical analysis of hydrodynamic process of circular-translational-moving polishing (CTMP)
ZHAI Wenjie, LIU Changxiong, LIANG Yingchun
期刊论文
“NEW” resource recovery from wastewater using bioelectrochemical systems: Moving forward with functions
Akshay Jain, Zhen He
期刊论文
Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit
期刊论文