Refine
Year of publication
Document Type
- Article (354)
- Conference Proceeding (158)
- Part of a Book (24)
- Book (8)
- Doctoral Thesis (2)
- Other (2)
- Talk (2)
- Master's Thesis (1)
- Report (1)
Language
- English (552) (remove)
Has Fulltext
- no (552) (remove)
Keywords
- Earthquake (5)
- Diversity Management (4)
- Energy storage (4)
- Power plants (4)
- Seismic design (4)
- Associated liquids (3)
- Concentrated solar power (3)
- Hybrid energy system (3)
- Out-of-plane load (3)
- Seismic loading (3)
- earthquakes (3)
- Adjacent buildings (2)
- Central receiver power plant (2)
- Concentrated systems (2)
- Diversity (2)
- Electricity generation (2)
- Engineering Habitus (2)
- Gas turbine (2)
- Historical centres (2)
- Human-robot collaboration (2)
- INODIS (2)
- Innovation Management (2)
- Masonry infill (2)
- Organizational Culture (2)
- Shake table test (2)
- Solar thermal technologies (2)
- Stone masonry (2)
- Tanks (2)
- cyber physical production system (2)
- digital shadow (2)
- engineering education (2)
- industrial facilities (2)
- installations (2)
- piping (2)
- seismic design (2)
- seismic loading (2)
- Academia (1)
- Acceptance (1)
- Anti-Bias (1)
- Antibias (1)
- Artificial intelligence (1)
- Behaviour factor q (1)
- Best practice sharing (1)
- Blind prediction competition (1)
- Bloom Taxonomy (1)
- COMSOL Multiphysics (1)
- Camera system (1)
- Capacity Curve (1)
- Cardiovascular MRI (1)
- Central receiver system (1)
- Ceramics (1)
- Change Management (1)
- Change management (1)
- Civil engineering (1)
- Cloud passages (1)
- Cognitive assistance system (1)
- Components (1)
- Concentrated solar collector (1)
- Concentrating solar power (1)
- Control optimization (1)
- Corporate Culture (1)
- DNI forecast (1)
- DNI forecasting (1)
- Decision theory (1)
- Decoupling (1)
- Design Thinking (1)
- Design examples (1)
- Digital leadership (1)
- Digitalization (1)
- Direct normal irradiance forecast (1)
- District data model (1)
- District energy planning platform (1)
- Diversity management (1)
- Dynamic simulation (1)
- EN 1998-4 (1)
- ESHM20, industrial facilities (1)
- Earthquake Engineering (1)
- Electrochemistry (1)
- Emilia-Romagna earthquake (1)
- Empirical consequence curves (1)
- Empirical fragility functions (1)
- Energy system (1)
- Energy system planning (1)
- Engineering (1)
- Engineering Education (1)
- Ethics (1)
- Eurocode 8 (1)
- Fracture classification (1)
- Frame structure (1)
- Fresnel power plant (1)
- Future Skills (1)
- Future skills (1)
- Gender (1)
- Genetic algorithm (1)
- Global change (1)
- Gust wind response (1)
- Heliostat Field Calibration (1)
- Heliostats (1)
- Higher Education (1)
- Hilbert Room (1)
- Human factors (1)
- Human-centered work design (1)
- Hybridization (1)
- INSYSME (1)
- Imaging (1)
- In- plane damage (1)
- In-plane (1)
- In-plane load (1)
- In-plane performance, isolation (1)
- Inclusive work climate (1)
- Industrial facilities (1)
- Industrial units (1)
- Infill wall design (1)
- Innovation (1)
- Interaction (1)
- Interculturality (1)
- Interdisciplinarity (1)
- Isolation (1)
- Key competences (1)
- Leadership (1)
- Left ventriular function (1)
- Lightning protection system (1)
- Linear elastic analysis (1)
- LiveLink for MATLAB (1)
- MR-stethoscope (1)
- Magnetic field strength (1)
- Magnetic resonance imaging (MRI) (1)
- Masonry partition walls (1)
- Masonry structures (1)
- Measuring instruments (1)
- Mixed integer linear programming (MILP) (1)
- Modern constructions (1)
- Molten salt receiver (1)
- Molten salt receiver system (1)
- Molten salt receiver system, (1)
- Molten salt solar tower (1)
- Monte Carlo Tree Search (1)
- Morphing (1)
- Multi-storey (1)
- Neo-Deterministic (1)
- Nowcasting (1)
- Numerical modelling (1)
- Operators (1)
- Optimization module (1)
- Organizational culture (1)
- Out-of-plane (1)
- Out-of-plane capacity (1)
- Out-of-plane failure (1)
- Out-of-plane strength (1)
- PBEE (1)
- PTC (1)
- Parabolic trough collector (1)
- Perception (1)
- Photovoltaics (1)
- Piping (1)
- Postulates (1)
- Power conversion systems (1)
- Precast buildings (1)
- Privacy (1)
- Probability distribution mapping (1)
- Process prediction (1)
- Psychological concepts (1)
- Pushover analysis (1)
- Quadrocopter (1)
- Quantenmechanik (1)
- RC frames (1)
- Reinforced concrete frame (1)
- Renewable energy (1)
- Renewable energy integration (1)
- Response spectrum (1)
- Responsibility (1)
- Schrödingers cat (1)
- Seismic (1)
- Seismic Hazard (1)
- Shoulder (1)
- Silos (1)
- Slab deflection (1)
- Social impact measurement (1)
- Solar concentration (1)
- Solar dish (1)
- Solar irradiance (1)
- Spectral analysis (1)
- Star design (1)
- Structural design (1)
- Structural health monitoring (1)
- Sustainability (1)
- Sustainable engineering education (1)
- Tank (1)
- Thermal Energy Storage (1)
- Time-series aggregation (1)
- Transient flux distribution (1)
- Two-phase modelling (1)
- Typical periods (1)
- UAV (1)
- Uncertainty analysis (1)
- Unmanned aerial vehicle (1)
- Unreinforced masonry buildings (1)
- Unreinforced masonry walls (1)
- Vulnerability Curves (1)
- Wind turbulence (1)
- Window opening (1)
- behaviour factor q (1)
- best practice (1)
- body limbs (1)
- bullying (1)
- cardiac gating (1)
- cardiovascular MR imaging (1)
- change management (1)
- churches (1)
- concentrating collector (1)
- connection detail (1)
- cyber-physical production system (1)
- deserts (1)
- digital twin (1)
- digitalization (1)
- dissemination (1)
- diversity (1)
- diversity management (1)
- down-conductor (1)
- early warning and response system (1)
- earthquake (1)
- earthquake engineering (1)
- education (1)
- elastomeric bearing (1)
- electrocardiogram (1)
- energy transition (1)
- engineering (1)
- equivalent stiffness (1)
- finite element method (1)
- fluid structure interaction (1)
- fragility curves (1)
- friction pendulum bearing (1)
- gender and diversity (1)
- granular silo (1)
- high field MR imaging (1)
- human digital shadow (1)
- human factors (1)
- human-machine interface (1)
- hypoplasticity (1)
- impulsive effects (1)
- in-plane (1)
- in-plane and out-of-plane failure (1)
- innovation (1)
- innovation management (1)
- integration SHM in BIM (1)
- interconnected sensor systems (1)
- internet of production (1)
- lessons learned (1)
- linear elastic analysis; (1)
- liquid storage tank (1)
- liquid-storage tank (1)
- liquid-structure interaction (1)
- lizards (1)
- macro-element (1)
- magnetic resonance imaging (1)
- masonry structures (1)
- metal façade (1)
- modern constructions (1)
- nonlinear transient analyses (1)
- open educational resources (1)
- out-of-plane (1)
- phonocardiogram (1)
- point-focussing system (1)
- policy recommendations (1)
- raytracing (1)
- recommendations for actions (1)
- renewable energies (1)
- research association (1)
- safety control (1)
- seismic hazard (1)
- seismic isolation (1)
- seismic response (1)
- seismic risk (1)
- seismic structural damage detection via SHM (1)
- seismic vulnerability (1)
- simplified approach (1)
- social responsible engineering (1)
- solar process heat (1)
- steel columns (1)
- storage dispatch (1)
- storage optimisation (1)
- structure-soil-structure interaction (1)
- swimming (1)
- teaching (1)
- thermal storage (1)
- touch voltage (1)
- truss (1)
- unreinforced masonry buildings (1)
- user & usage (1)
- vault (1)
- vocal fold oscillation (1)
Institute
- Fachbereich Energietechnik (552) (remove)
As an interdisciplinary research network, the Cluster of Excellence “Integrative Production Technology for High-Wage Countries” (CoE) comprises of around 150 researchers. Their scientific background ranges from mechanical engineering and computer science to social sciences such as sociology and psychology. In addition to content- and methodbased challenges, the CoE’s employees are faced with heterogenic organizational cultures, different hierarchical levels, an imbalanced gender distribution, and a high employee fluctuation. The sub-project Scientific Cooperation Engineering 1 (CSP1) addresses the challenge of interdisciplinary cooperation and organizational learning and aims at fostering interdisciplinarity and its synergies as a source of innovation. Therefore, the project examines means of reaching an organizational development, ranging from temporal structures to a sustainable network in production technology. To achieve this aim, a broad range of means has been developed during the last twelve years: In addition to physical measures such as regular network events and trainings, virtual measures such as the Terminology App were focused. The app is an algorithmic analysis method for uncovering latent topic structures of publications of the CoE to highlight thematic intersections and synergy potentials. The detection and promotion of has been a vital and long known element in knowledge management. Furthermore, CSP1 focusses on project management and thus developed evaluation tools to measure and control the success of interdisciplinary cooperation. In addition to the cooperation fostering measures, CSP1 conducted studies about interdisciplinarity and diversity and their relationship with innovation. The scientific background of these means and the research results of CSP1 are outlined in this paper to offer approaches for successful interdisciplinary cooperation management.
In this paper, a coupled multiphase model considering both non-linearities of water retention curves and solid state modeling is proposed. The solid displacements and the pressures of both water and air phases are unknowns of the proposed model. The finite element method is used to solve the governing differential equations. The proposed method is demonstrated through simulation of seepage test and partially consolidation problem. Then, implementation of the model is done by using hypoplasticity for the solid phase and analyzing the fully saturated triaxial experiments. In integration of the constitutive law error controlling is improved and comparisons done accordingly. In this work, the advantages and limitations of the numerical model are discussed.
In recent years, many onshore wind turbines are erected in seismic active regions and on soils with poor load bearing capacity, where pile grids are inevitable to transfer the loads into the ground. In this contribution, a realistic multi pile grid is designed to analyze the dynamics of a wind turbine tower including frequency dependent soil-structure-interaction. It turns out that different foundations on varying soil configurations heavily influence the vibration response. While the vibration amplitude is mostly attenuated, certain unfavorable combinations of structure and soil parameters lead to amplification in the range of the system's natural frequencies. This testifies the need for overall dynamic analysis in the assessment of the dynamic stability and the holistic frequency tuning of the turbines.
The Effect of Openings on Out-of-Plane Capacity of Masonry Infilled Reinforced Concrete Frames
(2018)
Seismic design of buried pipeline systems for energy and water supply is not only important for plant and operational safety but also for the maintenance of the supply infrastructure after an earthquake. The present paper shows special issues of the seismic wave impacts on buried pipelines, describes calculation methods, proposes approaches and gives calculation examples. This paper regards the effects of transient displacement differences and resulting tensions within the pipeline due to the wave propagation of the earthquake. However, the presented model can also be used to calculate fault rupture induced displacements. Based on a three-dimensional Finite Element Model parameter studies are performed to show the influence of several parameters such as incoming wave angle, wave velocity, backfill height and synthetic displacement time histories. The interaction between the pipeline and the surrounding soil is modeled with non-linear soil springs and the propagating wave is simulated affecting the pipeline punctually, independently in time and space. Special attention is given to long-distance heat pipeline systems. Here, in regular distances expansion bends are arranged to ensure movements of the pipeline due to high temperature. Such expansion bends are usually designed with small bending radii, which during the earthquake lead to high bending stresses in the cross-section of the pipeline. Finally, an interpretation of the results and recommendations are given for the most critical parameters.
Frequency Dependent Impedance Analysis of the Foundation-Soil-Systems of Onshore Wind Turbines
(2018)
The article presents the investigation of the seismic behaviour of a modern URM building located in the municipality of Finale Emilia in province of Modena, Northern Italy. The building is situated in the centre of the series of the 2012 Northern Italy earthquakes and has not suffered any damage during the earthquake series in 2012. The observed earthquake resistance of the building is compared with predicted resistances based on linear and nonlinear design approaches according to Eurocode. Furthermore, probabilistic analyses based on nonlinear calculation models taking into account scattering of the most relevant input parameters are carried out to identify their influence to the results and to derive fragility curves.
Reinforced concrete (RC) frames with masonry infills are frequently used in seismic regions all over the world. Generally masonry infills are considered as nonstructural elements and thus are typically neglected in the design process. However, the observations made after strong earthquakes have shown that masonry infills can modify the dynamic behavior of the structure significantly. The consequences were total collapses of buildings and loss of human lives. This paper presents the new system INODIS (Innovative Decoupled Infill System) developed within the European research project INSYSME (Innovative Systems for Earthquake Resistant Masonry Enclosures in RC Buildings). INODIS decouples the frame and the masonry infill by means of special U-shaped rubbers placed in between frame and infill. The effectiveness of the system was investigated by means of full scale tests on RC frames with masonry infills subjected to in-plane and out-of-plane loading. Furthermore small specimen tests were conducted to determine material characteristics of the components and the resistances of the connections. Finally, a micromodel was developed to simulate the in-plane behavior of RC frames infilled with AAC blocks with and without installation of the INODIS system.
Software Stories Guide
(2017)
Engineers and therefore engineering education are challenged by the increasing complexity of questions to be answered globally. The education of future engineers therefore has to answer with curriculums that build up relevant skills. This chapter will give an example how to bring engineering and social responsibility successful together to build engineers of tomorrow. Through the integration of gender and diversity perspectives, engineering research and teaching is expanded with new perspectives and contents providing an important potential for innovation. Aiming on the enhancement of engineering education with distinctive competencies beyond technical expertise, the teaching approach introduced in the chapter represents key factors to ensure that coming generations of engineers will be able to meet the requirements and challenges a changing globalized world holds for them. The chapter will describe how this approach successfully has been implemented in the curriculum in engineering of a leading technical university in Germany.
The link between diversity and innovation is broadly discussed in the context of research and innovation processes. Many institutions and enterprises, specifically in commerce, have already tried to establish sustainable diversity management concepts, in order to increase the diversity of their workforce in addition to establishing a corporate culture of openness. Alongside the creation of a working place where different experiences and skills are valued equally, the entrepreneurial intention is to transfer diversity into economically relevant advantages. Taking into account the potential of diversity in research and innovation processes, the project “Diversity- and Innovation Management” was incorporated within a large interdisciplinary research Cluster. The project’s purpose was to study the context between diversity and innovation in research associations and to later develop a customised management concept into an interdisciplinary research Cluster on integrative production technology with full integration. The challenge of such research associations lays in an organisational structure which is often described as being decentralised. Researchers coming from different academic disciplines, while having diverse habits, conduct research on large scientific issues and challenges. In addition, these researchers are socialised in different institutions and university chairs. Theses differences in leadership styles, business cultures and organisational strategies, follow into their research team work. Taking a closer look into the management of human resources suggests that decentral organised recruitment processes, as well as allocation of human resources, lead to a lacking overview in regard to missing competencies, perspectives and backgrounds in research networks. These circumstances are comparable to big corporate groups. While developing a management concept for research associations, these characteristics must be considered. To ensure this, the project follows a human-centred approach, which considers top-down, as well as bottom-up perspectives. This paper presents the applied mixed-method approach in the scientific issue described above. In the frame of the Cluster of Excellence “Integrative Production Technology for High-Wage Countries” research results based on quantitative, as well as qualitative studies, were presented as an application example. This paper provides a new perspective on the innovation and diversity context. Against the background of complex research organisations, the development approach of a management concept is particularly interesting.
Contemporary research appreciates a diverse workforce as a potential source of innovation. Researchers explore the fine details of why diversity management is central for generating innovations in heterogeneous research groups and how it could be effectively implemented into organizations. Complex research associations that discuss topics with a high impact on society increasingly address the necessity of establishing a diverse workforce to confront the challenges of tomorrow. Characterized by complex management structures as well as hierarchies, research associations have not been a subject of investigation until now. For this reason, the presented research project aims to develop a diversity and innovation management strategy with the ultimate goal of inducing change in the corporate culture. The proposed approach consisted of six phases; the first two phases investigated the status quo of diversity in the existing organizational structures of member institutes and the variety of particular working cultures within the research association. The third and the fourth phases utilized qualitative and quantitative studies. The third phase focused on the connection of management level to diversity and innovation, and the need for diversity and innovation management, and tailor-made methods of implementing them. The first three phases have been accomplished successfully; preliminary results are already available. The fourth phase will mainly focus on exploring the mind-set of the employees. The fifth phase will consolidate the findings in the first four phases into an implementable strategy. The final phase will address the implementation of this strategy into the organization. Phases 4 to 6 have not yet been undertaken
Analysis Of Base Isolated Liquid Storage Tanks With 3D Fsi-Analysis As Well As Simplified Approaches
(2017)
Tanks are preferably designed, for cost-saving reasons, as circular, cylindrical, thin-walled shells. In case of seismic excitation, these constructions are highly vulnerable to stability failures. An earthquake-resistant design of rigidly supported tanks for high seismic loading demands, however, uneconomic wall thicknesses. A cost-effective alternative can be provided by base isolation systems. In this paper, a simplified seismic design procedure for base isolated tanks is introduced, by appropriately modifying the standard mechanical model for flexible, rigidly supported tanks. The non-linear behavior of conventional base isolation systems becomes an integral part of a proposed simplified process, which enables
the assessment of the reduced hydrodynamic forces acting on the tank walls and the corresponding stress distribution. The impulsive and convective actions of the liquid are taken into account. The validity of this approach is evaluated by
employing a non-linear fluid-structure interaction algorithm of finite element method. Special focus is placed on the boundary conditions imposed from the base isolation and the resulting hydrodynamic pressures. Both horizontal and vertical
component of ground motion are considered in order to study the principal effects of the base isolation on the pressure distribution of the tank walls. The induced rocking effects associated with elastomeric bearings are discussed. The results
manifest that base isolated tanks can be designed for seismic loads by means of the proposed procedure with sufficient accuracy, allowing to dispense with numerically expensive techniques.
Investigation Of The Seismic Behaviour Of Infill Masonry Using Numerical Modelling Approaches
(2017)
Masonry is a widely spread construction type which is used all over the world for different types of structures. Due to its simple and cheap construction, it is used as non-structural as well as structural element. In frame structures, such as
reinforced concrete frames, masonry may be used as infill. While the bare frame itself is able to carry the loads when it comes to seismic events, the infilled frame is not able to warp freely due to the constrained movement. This restraint results in a complex interaction between the infill and the surrounding frame, which may lead to severe damage to the infill as well as the surrounding frame. The interaction is studied in different projects and effective approaches for the description of the behavior are still lacking. Experimental programs are usually quite expensive, while numerical models, once validated, do offer an efficient approach for the investigation of the interaction when horizontally loaded. In order to study the numerous parameters influencing the seismic load bearing behavior, numerical models may be used. Therefore, this contribution presents a numerical approach for the simulation of infill masonry in reinforced concrete frames. Both parts, the surrounding frame as well as the infill are represented by micro modelling approaches to correctly take into account the different types of failure. The adopted numerical model describes the inelastic behavior of the system, as indicated by the obtained results of the overall structural response as well as the formation of damage in the infilled wall. Comparison of the numerical and experimental results highlights the valuable contribution of numerical simulations in the study and design of infilled frames. As damage of the infill masonry may occur in-plane due to the interaction as well as out-of-plane due to the low vertical load, both directions of loading are investigated.