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Experimental and computational validation of a scaled train tunnel model using modal analysis
Janice B. D’SOUZA, Sangarapillai KANAPATHIPILLAI
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 420-428 doi: 10.1007/s11465-013-0281-7
Acoustic engineers are faced with the challenge of minimising reverberation time in their designs so as to contribute to the health and well-being of those traveling by train and those on the platforms. Although the problem is easy to identify, it is not as simple to solve. The acoustical environment of a train tunnel is complex, with a variety of noise contributing factors such as train announcements, speech of commuters, ventilation systems, electrical equipment and wheel and rail noise. As a result, there is some difficulty in modeling the complete acoustic environment with computational or acoustic first principles. In this study, an experimental rig was constructed to model the acoustic behavior within a tunnel. The modal properties for the 300 Hz to 1500 Hz range, including resonances and mode shapes were identified and were shown to successfully correspond to theoretical results and a computational model created in COMSOL using Finite Element Analysis.
关键词: reverberation time acoustic environment modal properties resonances
刘成武,钱林方
《中国工程科学》 2014年 第16卷 第8期 页码 93-98
伴随搅拌摩擦焊在镁合金上的广泛应用,对其隔声特性研究尤为重要,基于自适应网格技术,对搅拌摩擦焊过程进行数值模拟,为后续声学计算提供约束模态,解决了材料属性难以确定的问题,一定程度上实现了焊接与声学的结合。自行设计和制造了混响箱,用以测量焊接镁合金板的隔声量,弥补了混响室测试小试件的不足。进而使用finite element-statistical energy analysis(FE-SEA)混合法计算焊接件的隔声量,与试验结果进行对比,吻合良好,表明此方法行之有效。通过对比焊接前后镁合金板件的隔声量,发现在吻合低谷区,焊接后板件的隔声有所降低。为了研究焊接参数对隔声的影响,分别改变焊接速度和搅拌头旋转速度,观察隔声量的变化,结果表明,这些参数都需要合理的设置,并非越大或者越小越好。
General expression for linear and nonlinear time series models
Ren HUANG, Feiyun XU, Ruwen CHEN
《机械工程前沿(英文)》 2009年 第4卷 第1期 页码 15-24 doi: 10.1007/s11465-009-0015-z
关键词: linear and nonlinear autoregressive model system identification time series analysis
Run-time system based on LinSERCANS and Soft-PLC
Cunfeng KANG, Chong WANG, Chunmin MA, Xudong HUANG, Renyuan FEI
《机械工程前沿(英文)》 2009年 第4卷 第2期 页码 120-124 doi: 10.1007/s11465-009-0019-8
关键词: Soft-PLC run-time system LinSERCANS dynamic link libraries
Two-stage scheduling on batch and single machines with limited waiting time constraint
Zhongshun SHI, Zewen HUANG, Leyuan SHI
《工程管理前沿(英文)》 2017年 第4卷 第3期 页码 368-374 doi: 10.15302/J-FEM-2017034
Analyzing construction safety through time series methods
Houchen CAO, Yang Miang GOH
《工程管理前沿(英文)》 2019年 第6卷 第2期 页码 262-274 doi: 10.1007/s42524-019-0015-6
关键词: time series temporal construction safety leading indicators accident prevention forecasting
Convergence to real-time decision making
James M. TIEN
《工程管理前沿(英文)》 2020年 第7卷 第2期 页码 204-222 doi: 10.1007/s42524-019-0040-5
关键词: real-time decision making services goods ServGoods Big Data Internet of Things artificial intelligence wireless communications
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 851-866 doi: 10.1007/s11709-021-0739-3
关键词: damage identification beam-to-column connection time-domain response optimization
Lynda M. BOURNE, Patrick WEAVER
《工程管理前沿(英文)》 2018年 第5卷 第2期 页码 150-166 doi: 10.15302/J-FEM-2018012
关键词: time management scheduling CPM PERT Gantt Critical Path bar chart
Sustainability of steel structures: towards an integrated approach to life-time engineering design
Raffaele LANDOLFO, Lucrezia CASCINI, Francesco PORTIOLI
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 304-314 doi: 10.1007/s01709-011-0123-9
关键词: sustainability life-time engineering performance based design durability metal structures
Modal analysis of acoustic leak signal in pipelines using time-frequency analysis
JIAO Jing-pin, FEI Ren-yuan, HE Cun-fu, WU Bin
《机械工程前沿(英文)》 2006年 第1卷 第2期 页码 146-150 doi: 10.1007/s11465-006-0013-3
A super-element approach for structural identification in time domain
LI Jie, ZHAO Xin
《机械工程前沿(英文)》 2006年 第1卷 第2期 页码 215-221 doi: 10.1007/s11465-006-0004-4
关键词: numerical effective decomposing parameterization procedure divide-and-conquer ability time-domain identification
Microenvironmental time-activity patterns in Chongqing, China
Yu ZHAO, Shuxiao WANG, Gangcai CHEN, Fei WANG, Kristin AUNAN, Jiming HAO
《环境科学与工程前沿(英文)》 2009年 第3卷 第2期 页码 200-209 doi: 10.1007/s11783-009-0010-y
关键词: time-activity patterns microenvironment general linear model (GLM) Chongqing China
Real-time task processing method based on edge computing for spinning CPS
Shiyong YIN, Jinsong BAO, Jie LI, Jie ZHANG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 320-331 doi: 10.1007/s11465-019-0542-1
标题 作者 时间 类型 操作
Experimental and computational validation of a scaled train tunnel model using modal analysis
Janice B. D’SOUZA, Sangarapillai KANAPATHIPILLAI
期刊论文
General expression for linear and nonlinear time series models
Ren HUANG, Feiyun XU, Ruwen CHEN
期刊论文
Run-time system based on LinSERCANS and Soft-PLC
Cunfeng KANG, Chong WANG, Chunmin MA, Xudong HUANG, Renyuan FEI
期刊论文
Two-stage scheduling on batch and single machines with limited waiting time constraint
Zhongshun SHI, Zewen HUANG, Leyuan SHI
期刊论文
Damage identification in connections of moment frames using time domain responses and an optimization
期刊论文
origins of schedule management: the concepts used in planning, allocating, visualizing and managing time
Lynda M. BOURNE, Patrick WEAVER
期刊论文
Sustainability of steel structures: towards an integrated approach to life-time engineering design
Raffaele LANDOLFO, Lucrezia CASCINI, Francesco PORTIOLI
期刊论文
Modal analysis of acoustic leak signal in pipelines using time-frequency analysis
JIAO Jing-pin, FEI Ren-yuan, HE Cun-fu, WU Bin
期刊论文
Microenvironmental time-activity patterns in Chongqing, China
Yu ZHAO, Shuxiao WANG, Gangcai CHEN, Fei WANG, Kristin AUNAN, Jiming HAO
期刊论文