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Numerical simulation of multi-body floating piers to investigate pontoon stability

Mostafa Shahrabi, Khosrow Bargi

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 325-331 doi: 10.1007/s11709-013-0209-7

Abstract: The objective of this study is to develop a procedure to analyze the motions of a floating pier comprised of several pontoons that are modeled as rigid bodies and connected to each other by flexible and rigid connectors. Recently, the use offloating piers has increased because of their advantages, such as faster and higher-quality construction, seismic force isolation for a full-scale mooring system, low dependence on local soil conditions and tides, ability to relocate or reconfigure the pier modules during the operation period and 75-100 years of repair-free service. A floating pier consists of a pier, access bridge, mooring system and fender system, each of which comes in many variations to suit different usages and construction considerations. The typical loads used in the design of these piers are dead loads, live loads, mooring loads, fender loads and environmental loads induced by wind, currents and waves. For numerical simulation, three types of piers are used: passenger piers, light-cargo piers and semi-heavy-cargo piers. The selected piers consist of several large pontoons joined by pivots and have a pile-based mooring system. These piers are modeled by SAP2000software as two-dimensional frames that are linked together. As the first step, each type of pier is subjected to loading, and its general behavior is assessed. According to this behavior, the major load combinations are described for the design of piers and analyzed to determine the behavior of the modules. Lastly, according to the analysis results and the safe use and stability considerations, such as the maximum draft and longitudinal gradient, the dimensions of each module in each pier type are presented.

Keywords： coastal structures     numerical simulation     floating pier     rigid pontoons     stability    

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The Mechanics of 3D Multi-body Contact System of Long Shell and Tyres

Liang Xiaoling,Xiao Yougang,Li Xuejun

Strategic Study of CAE 2005, Volume 7, Issue 12,   Pages 41-44

Abstract:

According to the high iterative feature of shell and tyre structure, the multi-level substructuretechnique is adopted to set up the multi-body contact model between tyres and long shell.Applying parametric quadratic programming method, the multi-body contact FEM analysis of the No.2 rotary

Keywords： shell     multi-body contact     multi-level substructure     mechanical property    

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Application of coupled multi-body dynamics–discrete element method for optimization of particle damper

Danhui DAN, Qianqing WANG, Jiongxin GONG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 244-252 doi: 10.1007/s11709-021-0696-x

Abstract: In this paper, a coupled multi-body dynamics–discrete element method is proposed to simulate the dampingThe analyses are done by combining the discrete element method in EDEM and multi-body dynamics in ADAMS

Keywords： granular material     vibration control     discrete element method     particle damper     cable vibration    

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Design and simulation of a cable-pulley-based transmission for artificial ankle joints

Huaxin LIU,Marco CECCARELLI,Qiang HUANG

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2,   Pages 170-183 doi: 10.1007/s11465-016-0383-0

Abstract: A multi-body dynamic simulation model is elaborated accordingly and evaluated numerically in the ADAMS

Keywords： biomimetic designs     ankle joints     cable-pulley transmissions     multi-body dynamic simulation     numerical characterization    

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Prevention and treatment of pancreatic fistula after pancreatic body and tail resection: current status

Li Jiang, Deng Ning, Xiaoping Chen

Frontiers of Medicine 2020, Volume 14, Issue 3,   Pages 251-261 doi: 10.1007/s11684-019-0727-3

Abstract: Postoperative pancreatic fistula (POPF) is the most common and critical complication after pancreatic body

Keywords： pancreatic fistula     pancreatic body and tail resection     distal pancreatectomy    

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Laboratory experiment on using non-floating body to generate electrical energy from water waves

Arunachalam AMARKARTHIK, Srinivasan CHANDRASEKARAN, Karuppan SIVAKUMAR, Harender SINHMAR

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 361-365 doi: 10.1007/s11708-012-0210-1

Abstract: This paper describes an innovative method of using a non-buoyant body to harness ocean waves.The present study shows that using a non-buoyant body for conventional point absorber principle is muchA small scale wave energy converter with non-buoyant body was designed, fabricated and tested in small

Keywords： ocean wave energy     point absorbers     heaving body     non-floating object     heave response ratio     electrical energy    

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Lightweight design of an electric bus body structure with analytical target cascading

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0718-y

Abstract: In this study, a lightweight design of a newly developed multi-material electric bus body structure is

Keywords： electric vehicle     body in white (BIW)     lightweight     analytical target cascading (ATC)    

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Yesterday, Today and Future of the Engineering Management Body of Knowledge

Hiral Shah,Walter Nowocin

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 60-63 doi: 10.15302/J-FEM-2015009

Abstract: The purpose of engineering management body of knowledge (EMBOK) is to delineate the knowledge, skills

Keywords： body of knowledge     engineering management     certification exam     engineering manager     competency areas    

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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

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 360-366 doi: 10.1007/s11465-013-0280-8

Abstract:

Mobile concrete pump boom is typical multi-body large-scale motion manipulator.

Keywords： multi-body     mobile concrete pump boom     discrete time transfer matrix method (DTTMM)     kinematic     dynamic     tip    

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Thinking About Establishing New Medicine

Ma Ainai,Zhao Shaoqui

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 19-23

Abstract:  But it always cures illness by dissevering human body. So Western medicine has puzzled itself about how to stick up for whole human body.uniform to systemic theory" ,  advance to establish a new medicine,  that is "Human Body

Keywords： complexity science     open complex giant system     human body ecosystem     human body information system     humanbody ecological medicine    

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Sodium butyrate activates HMGCS2 to promote ketone body production through SIRT5-mediated desuccinylation

Frontiers of Medicine 2023, Volume 17, Issue 2,   Pages 339-351 doi: 10.1007/s11684-022-0943-0

Abstract: -3-methylglutaryl-CoA synthase 2 (HMGCS2), a rate-limiting enzyme in ketogenesis, to promote ketone bodyThe data suggests that SB activated HMGCS2 through SIRT5-mediated desuccinylation for ketone body productionThe data provide a novel molecular mechanism for SB activity in the induction of ketone body production

Keywords： sodium butyrate     succinylation     HMGCS2     ketogenesis     SIRT5    

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Water quality monitoring in a slightly-polluted inland water body through remote sensing - Case study

HE Weiqi, LIU Xuehua, CHEN Jining, CHEN Shan

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 163-171 doi: 10.1007/s11783-008-0027-7

Abstract: correlation between each water quality variable and remote sensing data in a slightly-polluted inland water body
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Modeling technology digital geologic stratum body in the proportion of pinch in 3D GIS

Dong Zhi

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 76-82

Abstract:

Geological prospecting data into three-dimensional system and various three-dimensional modeling methods were used to reason and connect the formation of stratum automatically to generate three-dimensional model of formation. The modeling methods can easily liberate geological workers in the field of water conservancy and hydropower from the heavy geological information access and geological interpretation of the manual labor, thus enhance the speed of three-dimensional stratum modeling and also the quality of construction.

Keywords： three-dimensional digital geologic model     virtual borehole     multi-proportion of pinch     automatical modeling    

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Advancement of the Engineering Management Body of Knowledge

David A. Wyrick,Paul Kauffmann,Libby Schott,John V. Farr

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 93-98 doi: 10.15302/J-FEM-2015008

Abstract: Trade around the world has become globally interconnected. Engineers play an integral role in designing products, managing supply chains, providing services, and increasing the quality of life for people and promoting sustainable development around the globe. Engineering managers make decisions every day that will have profound impacts on international suppliers, customers, partners, consumers, and the environment. Traditional education for engineering students focuses on the technical aspects and scientific principles. Education in some countries may focus exclusively on mathematics, science, and engineering topics. The North American model incorporates a general education component into the undergraduate program of study to give students a broad appreciation of ideas ranging from art to literature to the social sciences. This paper will investigate how undergraduate engineering management programs educate their students to be able to work in international settings or in the global workplace. This initial study will concentrate on the engineering management programs that are accredited by ABET, an international organization that accredits technical programs in higher education. ABET has accredited over 3,400 programs in applied science, computing, engineering, and engineering technology in 28 countries. This study will access publicly available information to determine the breadth and depth of education related to helping prepare engineering management students to work in a global marketplace. These data will be collected from the programs accredited by ABET using the “Engineering Management” program criteria, due to the public availability of this information. Initial findings will be presented, and may serve to identify opportunities for cooperation and further work.

Keywords： engineers     engineering management     knowledge     education     programs    

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Investigation of vortical flows over oscillating body using fast Lagrangian vortex method

Baoshan ZHU ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 297-306 doi: 10.1007/s11708-009-0010-4

Abstract: A computational method facilitating long-time and high-resolution unsteady vortical flows is developed with the advantages of the discrete vortex methods. Both the velocity and pressure distribution of the flow field are calculated by integral formulations in combination with a fast summation algorithm. The vorticity field is described by Lagrangian representation, which is well suited to the moving boundary. Viscosity diffusion of the vorticity is considered with the core spreading model corrected by an adaptive splitting and merging algorithm. The effectiveness of the present method is examined by comparing the numerical results of unsteady separated flows which pass a cylinder and a thin cambered blade undergoing rotational oscillations with available experimental results. Interesting results about vortex shedding patterns and lock-in characteristics are provided for the thin cambered blade.

Keywords： unsteady vortical flows     fast vortex method     vortex shedding     rotational oscillation     thin cambered blade    

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Title Author Date Type Operation

Numerical simulation of multi-body floating piers to investigate pontoon stability

Mostafa Shahrabi, Khosrow Bargi

Journal Article

The Mechanics of 3D Multi-body Contact System of Long Shell and Tyres

Liang Xiaoling,Xiao Yougang,Li Xuejun

Journal Article

Application of coupled multi-body dynamics–discrete element method for optimization of particle damper

Danhui DAN, Qianqing WANG, Jiongxin GONG

Journal Article

Design and simulation of a cable-pulley-based transmission for artificial ankle joints

Huaxin LIU,Marco CECCARELLI,Qiang HUANG

Journal Article

Prevention and treatment of pancreatic fistula after pancreatic body and tail resection: current status

Li Jiang, Deng Ning, Xiaoping Chen

Journal Article

Laboratory experiment on using non-floating body to generate electrical energy from water waves

Arunachalam AMARKARTHIK, Srinivasan CHANDRASEKARAN, Karuppan SIVAKUMAR, Harender SINHMAR

Journal Article

Lightweight design of an electric bus body structure with analytical target cascading

Journal Article

Yesterday, Today and Future of the Engineering Management Body of Knowledge

Hiral Shah,Walter Nowocin

Journal Article

A dynamic model of mobile concrete pump boom based on discrete time transfer matrix method

Wu REN, Yunxin WU, Zhaowei ZHANG

Journal Article

Thinking About Establishing New Medicine

Ma Ainai,Zhao Shaoqui

Journal Article

Sodium butyrate activates HMGCS2 to promote ketone body production through SIRT5-mediated desuccinylation

Journal Article

Water quality monitoring in a slightly-polluted inland water body through remote sensing - Case study

HE Weiqi, LIU Xuehua, CHEN Jining, CHEN Shan

Journal Article

Modeling technology digital geologic stratum body in the proportion of pinch in 3D GIS

Dong Zhi

Journal Article

Advancement of the Engineering Management Body of Knowledge

David A. Wyrick,Paul Kauffmann,Libby Schott,John V. Farr

Journal Article

Investigation of vortical flows over oscillating body using fast Lagrangian vortex method

Baoshan ZHU ,

Journal Article