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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
HUANG Xinghua, WANG Li, JIA Feng
《能源前沿(英文)》 2008年 第2卷 第3期 页码 333-338 doi: 10.1007/s11708-008-0043-0
关键词: two-phase discrete appropriate wavelet-transform criterion
Stormwater treatment: examples of computational fluid dynamics modeling
Gaoxiang YING, John SANSALONE, Srikanth PATHAPATI, Giuseppina GAROFALO, Marco MAGLIONICO, Andrea BOLOGNESI, Alessandro ARTINA
《环境科学与工程前沿(英文)》 2012年 第6卷 第5期 页码 638-648 doi: 10.1007/s11783-012-0442-7
关键词: stormwater unit operations and processes (UOPs) hydrodynamic separation filtration adsorption computational fluid dynamics (CFD) turbulence modeling discrete phase model particle separation detention/retention basins clarification
3D mode discrete element method with the elastoplastic model
Wei HU, Feng JIN, Chong ZHANG, Jinting WANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第1期 页码 57-68 doi: 10.1007/s11709-012-0139-9
关键词: mode discrete element method elastoplastic numerical method discontinuum contact
Huayang LEI, Yajie ZHANG, Yao HU, Yingnan LIU
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 147-166 doi: 10.1007/s11709-020-0704-6
关键词: shield tunneling face stability transparent clay model test numerical simulation
High-order phase-field model with the local and second-order max-entropy approximants
Fatemeh AMIRI
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 406-416 doi: 10.1007/s11709-018-0475-5
关键词: second-order maximum entropy local maximum entropy second- and fourth-order phase-field models B-spline
Rasoul MEMARZADEH, Gholamabbas BARANI, Mahnaz GHAEINI-HESSAROEYEH
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 412-424 doi: 10.1007/s11709-017-0432-8
The subject of present study is the application of mesh free Lagrangian two-dimensional non-cohesive sediment transport model applied to a two-phase flow over an initially trapezoidal-shaped sediment embankment. The governing equations of the present model are the Navier-Stocks equations solved using Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) method. To simulate the movement of sediment particles, the model considers a powerful two-part technique; when the sediment phase has rigid behavior, only the force term due to shear stress in the Navier-Stokes equations is used for simulation of sediment particles’ movement. Otherwise, all the Navier-Stokes force terms are used for transport simulation of sediment particles. In the present model, the interactions between different phases are calculated automatically, even with considerable difference between the density and viscosity of phases. Validation of the model is performed using simulation of available laboratory experiments, and the comparison between computational results and experimental data shows that the model generally predicts well the flow propagation over movable beds, the induced sediment transport and bed changes, and temporal evolution of embankment breaching.
关键词: WCSPH method non-cohesive sediment transport rheological model two-part technique two-phase dam break
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 874-885 doi: 10.1007/s11705-021-2131-1
关键词: discrete element method cohesive materials parameter calibration ring shear cell design of experiments
Zhijun LI, Zichen DENG
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 111-116 doi: 10.1007/s11709-009-0022-5
关键词: discrete-time variable structure control composite reaching law chattering effect saturated control law
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
Danhui DAN, Qianqing WANG, Jiongxin GONG
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 244-252 doi: 10.1007/s11709-021-0696-x
关键词: granular material vibration control discrete element method particle damper cable vibration
A model reference adaptive control based method for actuator delay estimation in real-time testing
Cheng CHEN, James M. RICLES
《结构与土木工程前沿(英文)》 2010年 第4卷 第3期 页码 277-286 doi: 10.1007/s11709-010-0072-8
关键词: real-time testing actuator delay compensation adaptive control MIT rule discrete transfer function
Coupled solid-fluid FE-analysis of an embankment dam
Michael PERTL, Matthias HOFMANN, Guenter HOFSTETTER
《结构与土木工程前沿(英文)》 2011年 第5卷 第1期 页码 53-62 doi: 10.1007/s11709-010-0084-4
关键词: multi-phase model unsaturated soil model Barcelona Basic model (BBM) return mapping algorithm embankment dam
Hui LI, Ruiqin LI, Jianwei ZHANG
《机械工程前沿(英文)》 2021年 第16卷 第2期 页码 353-362 doi: 10.1007/s11465-020-0620-4
关键词: sliding-mode control robot control discrete-time uncertain systems fuzzy logic
Discrete-event stochastic systems with correlated inputs: Modeling and performance evaluation
《工程管理前沿(英文)》 2022年 第9卷 第2期 页码 214-220 doi: 10.1007/s42524-022-0192-6
关键词: discrete-event stochastic system correlated input performance evaluation
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
Study of two-phase flow regime identification in horizontal tube bundles under vertical upward cross-flow
HUANG Xinghua, WANG Li, JIA Feng
期刊论文
Stormwater treatment: examples of computational fluid dynamics modeling
Gaoxiang YING, John SANSALONE, Srikanth PATHAPATI, Giuseppina GAROFALO, Marco MAGLIONICO, Andrea BOLOGNESI, Alessandro ARTINA
期刊论文
3D mode discrete element method with the elastoplastic model
Wei HU, Feng JIN, Chong ZHANG, Jinting WANG
期刊论文
Model test and discrete element method simulation of shield tunneling face stability in transparent clay
Huayang LEI, Yajie ZHANG, Yao HU, Yingnan LIU
期刊论文
High-order phase-field model with the local and second-order max-entropy approximants
Fatemeh AMIRI
期刊论文
Application of a weakly compressible smoothed particle hydrodynamics multi-phase model to non-cohesive
Rasoul MEMARZADEH, Gholamabbas BARANI, Mahnaz GHAEINI-HESSAROEYEH
期刊论文
A “Sequential Design of Simulations” approach for exploiting and calibrating discrete element simulations
期刊论文
Improving existing “reaching law” for better discrete control of seismically-excited building structures
Zhijun LI, Zichen DENG
期刊论文
Application of coupled multi-body dynamics–discrete element method for optimization of particle damper
Danhui DAN, Qianqing WANG, Jiongxin GONG
期刊论文
A model reference adaptive control based method for actuator delay estimation in real-time testing
Cheng CHEN, James M. RICLES
期刊论文
Coupled solid-fluid FE-analysis of an embankment dam
Michael PERTL, Matthias HOFMANN, Guenter HOFSTETTER
期刊论文
Gained switching-based fuzzy sliding mode control for a discrete-time underactuated robotic system with
Hui LI, Ruiqin LI, Jianwei ZHANG
期刊论文