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A dynamic model of mobile concrete pump boom based on discrete time transfer matrix method
Wu REN, Yunxin WU, Zhaowei ZHANG
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 360-366 doi: 10.1007/s11465-013-0280-8
Mobile concrete pump boom is typical multi-body large-scale motion manipulator. Due to posture constantly change in working process, kinematic rule and dynamic characteristic are difficult to solve. A dynamics model of a mobile concrete pump boom is established based on discrete time transfer matrix method (DTTMM). The boom system is divided into sub-structure A and sub-structure B. Sub-structure A is composed by the 1st boom and hydraulic actuator as well as the support. And sub-structure B is consists of the other three booms and corresponding hydraulic actuators. In the model, the booms and links are regarded as rigid elements and the hydraulic cylinders are equivalent to spring-damper. The booms are driven by the controllable hydraulic actuators. The overall dynamic equation and transfer matrix of the model can be assembled by sub-structures A and B. To get a precise result, step size and integration parameters are studied then. Next the tip displacement is calculated and compared with the result of ADAMS software. The displacement and rotation angle curves of the proposed method fit well with the ADAMS model. Besides it is convenient in modeling and saves time. So it is suitable for mobile concrete pump boom real-time monitoring and dynamic analysis. All of these provide reference to boom optimize and engineering application of such mechanisms.
关键词: multi-body mobile concrete pump boom discrete time transfer matrix method (DTTMM) kinematic dynamic tip displacement
Thermo-elastic extended meshfree method for fracture without crack tip enrichment
A. ASADPOUR
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 441-447 doi: 10.1007/s11709-015-0319-5
Review: Tip-based vibrational spectroscopy for nanoscale analysis of emerging energy materials
Amun JARZEMBSKI, Cedric SHASKEY, Keunhan PARK
《能源前沿(英文)》 2018年 第12卷 第1期 页码 43-71 doi: 10.1007/s11708-018-0524-8
关键词: vibrational spectroscopy atomic force microscopy photo-thermal induced resonance scanning near-field optical microscopy tip-enhanced Raman spectroscopy photo-induced force microscopy molecular resonances surface phonon polaritons energy materials
Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor
LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang
《能源前沿(英文)》 2008年 第2卷 第4期 页码 448-452 doi: 10.1007/s11708-008-0088-0
关键词: development endwall unsteady pressure pressure measurement experiment
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
Lateral displacement of soft ground under vacuum pressure and surcharge load
Chin-Yee ONG, Jin-Chun CHAI
《结构与土木工程前沿(英文)》 2011年 第5卷 第2期 页码 239-248 doi: 10.1007/s11709-011-0110-1
关键词: vacuum consolidation lateral displacement PVD finite element analysis surcharge load
《结构与土木工程前沿(英文)》 doi: 10.1007/s11709-023-0966-x
关键词: anti-fault effect engineering measures LRAF method stress and displacement field tunnel-crossing active faults
Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping
Yucheng DING, Changhe LI, Dichen LI, Guoxin YU
《机械工程前沿(英文)》 2009年 第4卷 第2期 页码 111-119 doi: 10.1007/s11465-009-0020-2
关键词: rapid prototyping laminated object manufacturing knife-cutting tracing error
Quality control based on electrode displacement and force in resistance spot welding
Chuntao JI, Lipeng DENG
《机械工程前沿(英文)》 2010年 第5卷 第4期 页码 412-417 doi: 10.1007/s11465-010-0114-x
关键词: aluminum electrode displacement electrode force nugget size data acquisition
Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0731-1
关键词: aero-engine blade displacement response dynamic strain reconstruction mode shape strain gauge
Evaluation of liquefaction-induced lateral displacement using Bayesian belief networks
Mahmood AHMAD, Xiao-Wei TANG, Jiang-Nan QIU, Feezan AHMAD
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 80-98 doi: 10.1007/s11709-021-0682-3
关键词: Bayesian belief network seismically induced soil liquefaction interpretive structural modeling lateral displacement
ZHANG Pengxian, ZHANG Hongjie, CHEN Jianhong, MA Yuezhou
《机械工程前沿(英文)》 2007年 第2卷 第3期 页码 330-335 doi: 10.1007/s11465-007-0058-y
Pore-scale simulation of water/oil displacement in a water-wet channel
Jin Zhao, Guice Yao, Dongsheng Wen
《化学科学与工程前沿(英文)》 2019年 第13卷 第4期 页码 803-814 doi: 10.1007/s11705-019-1835-y
Youliang DING, Aiqun LI
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 374-380 doi: 10.1007/s11709-011-0122-x
关键词: structural health monitoring displacement expansion joint temperature effect wind effect traffic loading statistical process control suspension bridge
Research on direct digital process of inductance sensor
WANG Xuan-ze, YANG Lian-gen, ZHONG Yu-ning
《机械工程前沿(英文)》 2006年 第1卷 第3期 页码 317-322 doi: 10.1007/s11465-006-0023-1
关键词: traditional corresponding phase-displacement Amplitude-displacement characteristic
标题 作者 时间 类型 操作
A dynamic model of mobile concrete pump boom based on discrete time transfer matrix method
Wu REN, Yunxin WU, Zhaowei ZHANG
期刊论文
Review: Tip-based vibrational spectroscopy for nanoscale analysis of emerging energy materials
Amun JARZEMBSKI, Cedric SHASKEY, Keunhan PARK
期刊论文
Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor
LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang
期刊论文
Stress field near circular-arc interface crack tip based on electric saturation concept
Longchao DAI, Xinwei WANG
期刊论文
Lateral displacement of soft ground under vacuum pressure and surcharge load
Chin-Yee ONG, Jin-Chun CHAI
期刊论文
Influence of advanced engineering measures on displacement and stress field of surrounding rock in tunnels
期刊论文
Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping
Yucheng DING, Changhe LI, Dichen LI, Guoxin YU
期刊论文
Quality control based on electrode displacement and force in resistance spot welding
Chuntao JI, Lipeng DENG
期刊论文
Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses
期刊论文
Evaluation of liquefaction-induced lateral displacement using Bayesian belief networks
Mahmood AHMAD, Xiao-Wei TANG, Jiang-Nan QIU, Feezan AHMAD
期刊论文
Quality monitoring of resistance spot welding based on electrode displacement characteristics analysis
ZHANG Pengxian, ZHANG Hongjie, CHEN Jianhong, MA Yuezhou
期刊论文
Pore-scale simulation of water/oil displacement in a water-wet channel
Jin Zhao, Guice Yao, Dongsheng Wen
期刊论文
Assessment of bridge expansion joints using long-term displacement measurement under changing environmental
Youliang DING, Aiqun LI
期刊论文