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14th European Conference on Product and Process Modelling, ECPPM 2022

作者： Huyeng, T.J. Bittner, T. Rüppel, U. Institute of Numerical Methods and Informatics in Civil Engineering Technische Universität Darmstadt Germany

ISBN: (纸本)9781032406732

With an increase to the availability of open data, the potential to leverage it for emergency response and disaster management has so far seen seldom use in Germany. While some modern technologies have found their place in existing workflows, open data and related services are rarely utilized. Due to varying standards and approaches in the federal system, public sector as well as community data sources often cannot be easily integrated. As such, an adaptable framework is proposed that outlines a way for practitioners to include these services via the OpenAPI specification without the need for programming or data science knowledge. Instead, the API documentation is parsed by an application offering various customization and configuration options during a mapping process enabling users to create their own interpretation of the data for beneficial use during disaster response efforts, resulting in a dashboard with map views and other visualizations. © 2023 the Author(s).

关键词： Open Data

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An Open-Source Approach for a Seamless BIM-GIS Integration 20th

An Open-Source Approach for a Seamless BIM-GIS Integration

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20th International Conference on Computing in civil and Building engineering, ICCCBE 2024

作者： Xia, Zhongxin Kandler, Benedikt Schmidt, Jakob Volland, Vivien Mosler, Pascal Eichhorn, Andreas Rüppel, Uwe Institute of Numerical Methods and Informatics in Civil Engineering Technical University of Darmstadt Darmstadt Germany Institute of Geodesy Technical University of Darmstadt Darmstadt Germany

ISBN: (纸本)9783031842078

With global climate change and the progressing digitization of infrastructural projects, the BIM (Building Information Modeling)-method has become increasingly significant. For planning and managing BIM projects, GIS data is crucial, e.g., in the form of environmental data. Especially for large-scale infrastructure projects, integrating BIM models and GIS (Geographic Information System) data provides advantages. With an information-rich platform that aggregates geographic and infrastructural design information to provide geometric 3D visualization combined with semantic information, processing infrastructural projects can be simplified. Many integrated solutions require complex algorithms and additional manual work for converting and visualizing BIM models. This process potentially leads to the loss of model information or contradictory data. In addition, commercial software is required. We present a new approach for the BIM-GIS integration based on open-source frameworks. Various types of BIM and GIS files can be uploaded to the application. The files are unified in one 3D environment with absolute reference, for which the coordinate reference system of each file is temporarily converted to a user-definable coordinate reference system within the backend. The original files remain unchanged, so the application serves as a viewer and allows the user to view all geographical and infrastructural information. Furthermore, various tasks like coordinate transformation and geometric measurement can be performed. Besides the viewer functionality, the application enables users to annotate the data and provide feedback on the issues found in the BIM models. That allows various stakeholders to share their insights, which is crucial for managing infrastructural projects and seamlessly displaying BIM models and GIS data. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： Climate change

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A Multi-stage Approach to Understand GIS Model Enrichment Used for Decision-Making Support When Developing Energy Retrofit Strategies on a Neighborhood Level 19th

A Multi-stage Approach to Understand GIS Model Enrichment U...

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19th International Conference on Computing in civil and Building engineering, ICCCBE 2022

作者： Thiele, Christian-Dominik Zadeh, Puyan A. Hashempour, Najme Staub-French, Sheryl Rüppel, Uwe Institute of Numerical Methods and Informatics in Civil Engineering Technical University of Darmstadt Darmstadt Germany Project Management and Construction Group Department of Civil Engineering University of British Columbia Vancouver Canada

ISBN: (纸本)9783031353987

In the AEC sector, energy performance targets of buildings continuously increase for contributing to reduce carbon dioxide. This is usually done on building level, but the focus continuously shifts to larger scales such as neighborhoods, e.g. for identifying buildings with the most retrofitting potential. For this, low detailed GIS models can serve as a basis for energy simulations and are broadly available. However, neighborhood energy simulations hold many challenges, such as the lack of accurate and sufficient data to perform reliable simulations. Information such as window positions or thermal parameters of the building elements can thereby help to increase the quality of the energy simulation results. Therefore, in this paper, challenges of data collection are presented and discussed. To enable users to find a trade-off between accuracy and reliability of a neighborhood simulation and the effort to provide this data, the authors developed the concept of the Neighborhood Model States (NMS). Furthermore, occurring challenges in enriching the GIS model for each NMS are discussed on the example of buildings from the UBC campus. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Retrofitting

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Statistical assessment of the financial performance of shale-gas wells coupling stochastic and numerical simulation

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Petroleum Science 2024年第6期21卷 4497-4511页

作者： Andres Soage Luis Ramirez Ruben Juanes Luis Cueto-Felgueroso Ignasi Colominas Group of Numerical Methods in Engineering-GMNI Center for TechnologicalInnovation in Construction and Civil Engineering-CITEEC.Civil Engineering SchoolUniversity of a CorunaCampus of ElvinaA Coruna15008GaliciaSpain Department of Civil Engineering:Hydraulics Energy and Environment.Polytechnic University of MadridMadrid2006Spain Department of Civil and Environmental Engineering Massachusetts Institute of TechnologyCambridge02139MAUA Department of Earth Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridge239MAUSA

We present a new methodology to statistically determine the net present value(NPV)and internal rate of return(IRR)as financial estimators of shale gas *** method allows us to forecast,in a fully probabilistic setting,financial performance risk and to understand the importance of the different factors that impact *** methodology developed in this study combines,through Monte Carlo simulation,the computational modeling of gas production from shale gas wells with a stochastic simulation of gas price as a geometric Brownian motion(GMB).To illustrate the methodology's validity,we apply it to an analysis of investments in shale gas *** results show that gas price volatility is a key variable in the performance of an investment of this type,in such a way that at high volatilities,the potential return on an investment in shale gas increases significantly,but so do the risks of economic *** finding is consistent with the history of shale gas operations in which huge investment successes coexist with unexpected investment failures.

关键词： Gas volatility Shale gas Net presentvalue Internal ratereturn Stochastic model Financial estimator MonteCarlosimulation Kernel densityfunction

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Very High Order Finite Volume Solver for Multi Component Two-Phase Flow with Phase Change Using a Posteriori Multi Optimal Order Detection

SSRN

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SSRN 2024年

作者： Deligant, Michael Romero Casado, Carlos Nogeira, Xesus Ramirez, Luis Specklin, Mathieu Bakir, Farid Khelladi, Sofiane PIMM Arts et Métiers Institute of Technology CNAM LIFSE HESAM University ParisF-75013 France Group of Numerical Methods in Engineering-GMNI Center for Technological Innovation in Construction and Civil Engineering-CITEEC Universidade da Coruña Civil Engineering School Campus de Elviña A Coruña15071 Spain

This paper presents a very high order compressible multicomponent two-phase flow solver with phase transition. It is based on finite volume approach using moving least square reproducing kernels for high order reconstructions. It is also coupled with multi optimal order detection (MOOD) to get high accuracy low dissipation scheme while maintaining boundedness and preventing numerical oscillations at interfaces and strong gradient zones. The properties of the proposed framework are demonstrated on classical test problems starting with convergence order verification on simple scalar advection test cases. More complex shock and more stringent tubes tests with various water, steam and air concentration are then simulated and compared with available reference in the literature. Finally the ability of the proposed approach is illustrated with the simulation of a liquid oxygen jet in gaseous hydrogen. The results features vortices, mixing and evaporation at the liquid/vapor interface. © 2024, The Authors. All rights reserved.

关键词： Two phase flow

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An Educational GUI-Based Software for Dynamic Analysis of Framed Structural Models

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Journal of Software engineering and Applications 2023年第7期16卷 265-286页

作者： Claudio H. B. Resende Pedro C. Lopes Rafael L. Rangel Luis F. Paullo Muñoz Luiz F. Martha Department of Civil and Environmental Engineering Pontifical Catholic University of Rio de Janeiro Rio de Janeiro Brazil Institute of Computing Fluminense Federal University Niter&#243i Brazil International Centre for Numerical Methods in Engineering (CIMNE) Universitat Politècnica de Catalunya Barcelona Spain

This paper introduces a new version of the open-source educational software, LESM (Linear Elements Structure Model), developed in MATLAB for structural analysis of one-dimensional models such as frames, trusses, and grillages. The updated program includes dynamic analysis, which incorporates inertial and damping effects, time-dependent load conditions, and a transient solver with multiple time integration schemes. The software assumes small displacements and linear-elastic material behavior. The paper briefly explains the theoretical basis for these developments and the reorganization of the source code using Object-Oriented Programming (OOP). The updated Graphical User Interface (GUI) allows interactive use of dynamic analysis features and displays new results such as animations, envelope diagrams of internal forces, phase portraits, and the response of degrees-of-freedom in time and frequency domain. The new version was used in a structural dynamics course, and new assignments were elaborated to improve students’ understanding of the subject.

关键词： Structural Analysis Structural Dynamics Educational Software MATLAB Graphical User Interface

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Shooting-projection method for a small object moving under the influence of a force 10

Shooting-projection method for a small object moving under t...

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202 10th International Conference on engineering Mathematics and Physics, ICEMP 2021

作者： Filipov, S.M. Faragó, I. Avdzhieva, A. Department of Computer Science Faculty of Chemical and System Engineering University of Chemical Technology and Metallurgy 8 St. Kliment Ohridski Blvd. Sofia1756 Bulgaria Department of Differential Equations Institute of Mathematics Budapest University of Technology and Economics MTA-ELTE Research Group Egry József u. 1 Budapest1111 Hungary Department of Numerical Methods Faculty of Mathematics and Informatics Sofia University St. Kliment Ohridski 5 James Bourchier Blvd. Sofia1164 Bulgaria

We consider a small object in 3D moving under the influence of a force that may depend explicitly on time, on the position of the object, and on its velocity. The equations of motion of classical mechanics are assumed to hold. If the position of the object is specified at some initial and some final time, obtaining the trajectory of the object requires the solution of a two-point boundary value problem. To solve the problem various numerical technics can be applied. This paper extends the recently proposed shooting-projection method to 3D. We introduce a Lagrangian from which, applying the principle of least action, the projection trajectory is derived. Analysis of the action reveals the meaning of the projection trajectory. Using the shooting-projection method, the considered two-point boundary value problem is solved for the case of a projectile motion in the presence of air resistance and wind. © 2021 institute of Physics Publishing. All rights reserved.

关键词： Trajectories

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Integrated digital and model-based construction logistics management based on lean thinking approaches 35

Integrated digital and model-based construction logistics ma...

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35th International Symposium on Automation and Robotics in Construction and International AEC/FM Hackathon: The Future of Building Things, ISARC 2018

作者： Leifgen, Christian Kujajewski, Steffen Institute of Numerical Methods and Informatics in Civil Engineering TU Darmstadt Darmstadt Germany

As an elementary part of building projects, construction logistics encompasses planning, control and monitoring functions to ensure the flow of materials and people on the construction site. Furthermore, it includes the management of storage areas and site facility planning. Despite its importance, the implementation of construction logistics often does not occur systematically. In practice, the project phases in which its planning and implementation take place as well as the considered degrees of detail differ significantly depending on the project conditions, such as the projects’ complexity, involved stakeholders or the scope of the construction project. In this paper an approach is presented that facilitates a systematic and holistic planning of construction logistics over all project phases on basis of lean construction principles. To achieve this, the coordination of all domain-specific stakeholders (e. g. construction logistics planners, site managers, contractors) is essential. As a work basis, construction logistics planners can create a specific digital construction logistics model (CLM) derived from the digital architectural model. This CLM can be used to schedule deliveries and storage areas, as well as logistics related information (e.g., delivery dates, storage areas, escape routes, waste collection points or construction site equipment elements). Construction logistics has to be generally accepted as an own domain-specific role during and especially in the beginning of construction projects to ensure the regarding of all necessary processes and requirements towards the construction logistics. © ISARC 2018 - 35th International Symposium on Automation and Robotics in Construction and International AEC/FM Hackathon: The Future of Building Things. All rights reserved.

关键词： Storage (materials)

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(ω, ρ)-PERIODIC SOLUTIONS OF ABSTRACT INTEGRO-DIFFERENTIAL IMPULSIVE EQUATIONS ON BANACH SPACE

arXiv

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arXiv 2022年

作者： Fečkan, Michal Kostić, Marko Velinov, Daniel Department of Mathematical Analysis and Numerical Mathematics Faculty of Mathematics Physics and Informatics Comenius University Slovakia Mathematical Institute Slovak Academy of Sciences Štefánikova 49 Bratislava814 73 Slovakia Faculty of Technical Sciences University of Novi Sad Trg D. Obradovića 6 Novi Sad21125 Serbia Department for Mathematics Faculty of Civil Engineering Ss. Cyril and Methodius University Partizanski Odredi 24 P.O. box 560 Skopje1000 Macedonia

In this paper, we investigate the existence and uniqueness of (ω, ρ)periodic solutions for a class of the abstract impulsive integro-differential equations on Banach *** Codes 34A37, 34C25, 34C27 © 2022, CC BY.

关键词： Banach spaces

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Correction to: Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCC

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Materials and Structures 2021年第2期54卷 1-2页

作者： von Greve-Dierfeld, Stefanie Lothenbach, Barbara Vollpracht, Anya Wu, Bei Huet, Bruno Andrade, Carmen Medina, César Thiel, Charlotte Gruyaert, Elke Vanoutrive, Hanne del Bosque, Isabel F. Saéz Ignjatovic, Ivan Elsen, Jan Provis, John L. Scrivener, Karen Thienel, Karl-Christian Sideris, Kosmas Zajac, Maciej Alderete, Natalia Cizer, Özlem Van den Heede, Philip Hooton, Robert Douglas Kamali-Bernard, Siham Bernal, Susan A. Zhao, Zengfeng Shi, Zhenguo De Belie, Nele TFB Technology and Research for Concrete Structures Wildegg Switzerland Swiss Federal Laboratories for Materials Science and Technology (Empa) Laboratory for Concrete and Construction Chemistry Dübendorf Switzerland Faculty of Civil Engineering Institute of Building Materials Research RWTH Aachen University Aachen Germany Microlab Faculty of Civil Engineering and Geosciences Delft University of Technology Delft The Netherlands LafargeHolcim Innovation Center Saint-Quentin-Fallavier Cedex France International Centre for Numerical Methods in Engineering (CIMNE) Barcelona Spain Department of Construction Institute for Sustainable Regional Development (INTERRA) University of Extremadura Cáceres Spain Center for Building Materials Technical University of Munich Munich Germany Department of Civil Engineering Structural Mechanics and Building Materials KU Leuven Ghent Belgium Department of Materials and Structures Faculty of Civil Engineering Institute of Materials and Structures University of Belgrade Belgrade Serbia Department of Earth and Environmental Sciences KU Leuven Louvain Belgium Department of Materials Science and Engineering University of Sheffield Sheffield UK Construction Materials Laboratory École polytechnique fédérale de Lausanne Lausanne Switzerland Department of Civil Engineering and Environmental Sciences University of the Bundeswehr Munich Neubiberg Germany Department of Civil Engineering Democritus University of Thrace Xanthi Greece Global R&D HeidelbergCement AG Leimen Germany Department of Structural Engineering and Building Materials Ghent University Ghent Belgium Departement of Civil Engineering KU Leuven Louvain Belgium Department of Civil and Mineral Engineering University of Toronto Toronto Canada National Institute of Applied Sciences of Rennes Rennes France School of Civil Engineering University of Leeds Leeds UK Building Materials Urban and Environment Research University of Liège Liège Belgium

A correction to this paper has been published: https://***/10.1617/s11527-020-01558-w

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