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ASME 2018 37th International Conference on Ocean, Offshore and Arctic engineering, OMAE 2018

作者： Popko, Wojciech Huhn, Matthias L. Robertson, Amy Jonkman, Jason Wendt, Fabian Muller, Kolja Kretschmer, Matthias Vorpahl, Fabian Hagen, Torbjørn Ruud Galinos, Christos Dreff, Jean-Baptiste Le Gilbert, Philippe Auriac, Bertrand Villora, Francisco Navarro Schunemann, Paul Bayati, Ilmas Belloli, Marco Oh, Sho Totsuka, Yoshitaka Qvist, Jacob Bachynski, Erin Sørum, Stian Høegh Thomassen, Paul E. Shin, Hyunkyoung Vittori, Felipe Galvan, Josean Molins, Climent Bonnet, Paul Van Der Zee, Tjeerd Bergua, Roger Wang, Kai Fu, Pengcheng Cai, Jifeng Fraunhofer Institute for Wind Energy Systems IWES Division Wind Turbine and System Technology Bremerhaven27572 Germany National Renewable Energy Laboratory GoldenCO United States University of Stuttgart Stuttgart Wind Energy Stuttgart Germany Senvion Osnabruck Germany OWEC Tower AS Oslo Norway Technical University of Denmark Department of Wind Energy Roskilde Denmark Electricite de France Recherche et Developpement Palaiseau France IFP Energies Nouvelles Solaize France Principia La Ciotat France Siemens Gamesa Renewable Energy Hamburg Germany University of Rostock Endowed Department of Wind Energy Technology Rostock Germany Politecnico di Milano Department of Mechanical Engineering Milan Italy Tokyo Japan Wind Energy Institute of Tokyo Inc. Tokyo Japan Subsea Hvalstad Norway Norwegian University of Science and Technology Department of Marine Technology Trondheim Norway Simis AS Trondheim Norway University of Ulsan School of Naval Architecture and Ocean Engineering Ulsan Korea Republic of Sarriguren Spain TECNALIA Derio Spain Polytechnic University of Catalonia Barcelona Spain Siemens Industry Software Cornella de Llobregat Spain Knowledge Centre WMC Wieringerwerf Netherlands Envision Energy Limited Shanghai China China General Certification Center Beijing China

ISBN: (纸本)9780791851319

The main objective of the Offshore Code Comparison Collaboration Continuation, with Correlation (OC5) project, is validation of aero-hydro-servo-elastic simulation tools for offshore wind turbines (OWTs) through comparison of simulated results to the response data of physical systems. Phase III of the OC5 project analyzes the Senvion 5M wind turbine supported by the OWEC Quattropod from the alpha ventus offshore wind farm. This paper shows results of the verification of the OWT models (code-to-code comparison). A subsequent publication will focus on their validation (comparison of simulated results to measured physical system response data). Based on the available data, the participants of Phase III set up numerical models of the OWT in their simulation tools. It was necessary to verify and to tune these models. The verification and tuning were performed against an OWT model available at the University of Stuttgart - Stuttgart Wind Energy (SWE) and documentation provided by Senvion and OWEC Tower. A very good match was achieved between the results from the reference SWE model and models set up by OC5 Phase III participants. © Copyright 2018 ASME.

关键词： Numerical models

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Capillary microfluidics-integrated impedance sensor for rapid label-free antibody sensing

Capillary microfluidics-integrated impedance sensor for rapi...

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2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016

作者： Zang, F. Chu, S. Gerasopoulos, K. Culver, J.N. Ghodssi, R. Department of Electrical and Computer Engineering Institute for Systems Research United States Institute for Bioscience and Biotechnology Research Department of Plant Science and Landscape Architecture University of Maryland College Park United States

ISBN: (纸本)9781940470023

We report on a microsystem integrating capillary microfluidics and impedance sensors for controlled on-chip nanoreceptor assembly and label-free antibody sensing. Leveraging engineered surface tension in open-channel capillary microfluidic pumps and stop valves, genetically engineered Tobacco mosaic virus-like particle (VLP) nanoreceptors are autonomously delivered and assembled onto the impedance microsensor. The evaporation-assisted VLP assembly shortens the time required for sensor functionalization to 6 minutes, a significant reduction in time compared with the VLP self-assembly process. Such VLP-functionalized impedance sensors can perform label-free antibody detection down to 10 ng/mL within 5 minutes. This platform has demonstrated great potential in on-demand portable biosensing. © 2016 TRF

关键词： Microsystems

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Simulation-based performances analysis for naval ships at the initial design stage 26

Simulation-based performances analysis for naval ships at th...

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26th Annual International Ocean and Polar engineering Conference, ISOPE 2016

作者： Jeong, Dong-Hoon Roh, Myung-Il Ham, Seung-Ho Choi, Woo-Young Lee, Chan-Young Seo, Kyung-Min Lee, Dong-Chul Department of Naval Architecture and Ocean Engineering Seoul National University Seoul Korea Republic of Department of the Naval Architecture and Ocean Engineering Research Institute of Marine Systems Engineering Seoul National University Seoul Korea Republic of Naval System R and D Department Daewoo Shipbuilding and Marine Engineering Seoul Korea Republic of

ISBN: (纸本)9781880653883

The design and the construction of naval ships take a very long time and a huge cost. Therefore, simulation-based performance analysis for naval ships can be useful. In this study, a simulation framework is proposed to simulate the performance of the naval ships at the initial design stage. The simulation framework consists of three components: virtual battlefield, combat object models, and space model. It is applied to predict and analyze the maneuver performance and the detection performance of the naval ships. © Copyright 2016 by the International Society of Offshore and Polar Engineers (ISOPE).

关键词： Vehicle performance

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Selective strong structural minimum cost resilient co-design for regular descriptor linear systems

arXiv

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arXiv 2017年

作者： Popli, Nipun Pequito, Sérgio Kar, Soummya Pedro Aguiar, A. Ilić, Marija Department of Electrical and Computer Engineering Carnegie Mellon University PittsburghPA15213 United States Department of Electrical and Systems Engineering School of Engineering and Applied Science University of Pennsylvania PhiladelphiaPA19104 United States Institute for System and Robotics Instituto Superior Técnico University of Lisbon Lisbon Portugal Porto Portugal

This paper addresses the problem of minimum cost resilient actuation-sensing-communication co-design for regular descriptor systems while ensuring selective strong structural system's properties. More specifically, the problem consists of determining the minimum cost deployment of actuation and sensing technology, as well as communication between the these, such that decentralized control approaches are viable for an arbitrary realization of regular descriptor systems satisfying a pre-specified selective structure, i.e., some entries can be zero, nonzero, or either zero/nonzero. Towards this goal, we rely on strong structural systems theory and extend it to cope with the selective structure that casts resiliency/robustness properties and uncertainty properties of system's model. Upon such framework, we introduce the notion of selective strong structural fixed modes as a characterization of the feasibility of decentralized control laws. Also, we provide necessary and sufficient conditions for this property to hold, and show how these conditions can be leveraged to determine the minimum cost resilient placement of actuation-sensing-communication technology ensuring feasible solutions. In particular, we study the minimum cost resilient actuation and sensing placement, upon which we construct the solution to our problem. Finally, we illustrate the applicability the main results of this paper on an electric power grid example. Copyright © 2017, The Authors. All rights reserved.

关键词： Describing functions

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Trial production of life cycle assessment tool for housing design considering usage by client at initial design stage

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AIJ Journal of Technology and Design 2016年第52期22卷 1041-1044页

作者： Ike, Takahiro Asano, Koichi Hasegawa, Kenichi Kanno, Hideto Murata, Ryo Miyaoka, Futoshi Kaneko, Naoshi Graduate School Course of Joint in Life Cycle Design Engineering Akita Prefectural Univ. Japan Dept. of Architecture and Environment System Faculty of Systems Science and Technology Akita Prefectural Univ. Japan Dept. of Architecture and Building Engineering Tokyo Institute of Technology Japan Dept. of Machine Engineering Nihon Univ. Japan ESTEC Design M. Design Eng. Japan

In this study, we investigated on trial production of life cycle assessment (LCA) tool for using by clients at the initial stages of housing design. The utility of LCA input items were examined. Based on examination r... 详细信息

关键词： Life cycle

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On the H2 norm and iterative model order reduction of linear switched systems

arXiv

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arXiv 2017年

作者： Gosea, Ion Victor Antoulas, Athanasios C. Data-Driven System Reduction and Identification Group Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg Germany Department of Electrical and Computer Engineering Rice University Houston United States MPI Magdeburg Germany Baylor College of Medicine Houston United States

A new definition of the H2 norm for linear switched systems is introduced. It is based on appropriately defined time-domain kernels, or equivalently, on infinite controllability and observability Gramian matrices. Furthermore, an extension of the iterative rational Krylov algorithm to the class of linear switched systems is proposed.93A15, 93A30, 93B05, 93B07, 93B11, 93C10, 93C15 Copyright © 2017, The Authors. All rights reserved.

关键词： Iterative methods

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引用

作者： Nguyen, Linh Anh Nguyen, Thi Hong Khanh Nguyen, Ngoc-Thanh Ha, Quang-Thuy Division of Knowledge and System Engineering for ICT Faculty of Information Technology Ton Duc Thang University Ho Chi Minh City Viet Nam Institute of Informatics University of Warsaw Warsaw Poland Electric Power University Hoang Quoc Viet Tu Liem Hanoi Viet Nam Department of Information Systems Faculty of Computer Science and Management Wroclaw University of Science and Technology Str. Wyb. Wyspianskiego 27 Wroclaw50-370 Poland Faculty of Information Technology VNU University of Engineering and Technology Xuan Thuy Hanoi Viet Nam

We introduce comparisons w.r.t. information between interpretations in paraconsistent description logics and use them to define bisimilarity for such logics. This notion is useful for concept learning in description logics when inconsistencies occur. We give preservation results and the Hennessy-Milner property for comparisons w.r.t. information in paraconsistent description logics. As consequences, we obtain also invariance results and the Hennessy-Milner property for bisimilarity in paraconsistent description logics. © 2017 - IOS Press and the authors. All rights reserved.

关键词： Data description

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Approximation of a damped Euler-Bernoulli beam model in the Loewner framework

arXiv

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arXiv 2017年

作者： Gosea, I.V. Antoulas, A.C. Data-Driven System Reduction and Identification Group Max Planck Institute for Dynamics of Complex Technical Systems Sandtorstrasse 1 Magdeburg39106 Germany Department of Electrical and Computer Engineering Rice University 6100 Main St MS-366 HoustonTX77005 United States

The Loewner framework for model order reduction is applied to the class of infinite-dimension systems. The transfer function of such systems is irrational (as opposed to linear systems, whose transfer function is rational) and can be expressed as an infinite series of rational functions. The main advantage of the method is the fact that reduced orders models are constructed using only input-output measurements. The procedure can be directly applied to the original transfer function or to the one obtained from the finite element discretization of the PDE. Significantly better results are obtained when using it directly, as it is presented in the experiments section.93A30, 93B15, 93C15, 93C20 Copyright © 2017, The Authors. All rights reserved.

关键词： Transfer functions

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Carbon Nanotubes: A Molecular Dynamics Study on Self‐Assembly of Single‐Walled Carbon Nanotubes: From Molecular Morphology and Binding Energy (Adv. Mater. Interfaces 19/2019)

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Advanced Materials Interfaces 2019年第19期6卷

作者： Jianwei Zhang Jianlei Cui Yang Cheng Wenjun Wang Xiaoqiao He Xuesong Mei State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 P. R. China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 P. R. China Shaanxi Key Laboratory of Intelligent Robots Xi'an Jiaotong University Xi'an 710049 P. R. China State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Shanghai 200240 P. R. China State Key Laboratory of Transient Optics and Photonics Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences Xi'an 710119 P. R. China Department of Architecture and Civil Engineering City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong

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Self adaptation of chimera states

arXiv

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arXiv 2018年

作者： Yao, Nan Huang, Zi-Gang Ren, Hai-Peng Grebogi, Celso Lai, Ying-Cheng Department of Applied Physics Xi’an University of Technology Xi’an710048 China School of Life Science and Technology Xi’an Jiao Tong University Xi’an710049 China Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing Xi’an University of Technology Xi’an710048 China Institute for Complex Systems and Mathematical Biology King’s College University of Aberdeen AberdeenAB24 3UE United Kingdom School of Electrical Computer and Energy Engineering Arizona State University TempeAZ85287 United States Department of Physics Arizona State University TempeAZ85287 United States

Chimera states in spatiotemporal dynamical systems have been investigated in physical, chemical, and biological systems, and have been shown to be robust against random perturbations. How do chimera states achieve their robustness? We uncover a self-adaptation behavior by which, upon a spatially localized perturbation, the coherent component of the chimera state spontaneously drifts to an optimal location as far away from the perturbation as possible, exposing only its incoherent component to the perturbation to minimize the disturbance. A systematic numerical analysis of the evolution of the spatiotemporal pattern of the chimera state towards the optimal stable state reveals an exponential relaxation process independent of the spatial location of the perturbation, implying that its effects can be modeled as restoring and damping forces in a mechanical system and enabling the articulation of a phenomenological model. Not only is the model able to reproduce the numerical results, it can also predict the trajectory of drifting. Our finding is striking as it reveals that, inherently, chimera states possess a kind of "intelligence" in achieving robustness through self adaptation. The behavior can be exploited for controlled generation of chimera states with their coherent component placed in any desired spatial region of the system. Copyright © 2018, The Authors. All rights reserved.

关键词： Dynamical systems

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