• Dynamic response analysis of a model truss bridge considering damage scenarios 

  Vanova, Patricia; Sun, Zhen; Odinson, Odin-Eliott; Jiang, Zhiyu (Peer reviewed; Journal article, 2023)

  Structural health monitoring plays a key role for maintenance and lifetime extension of bridges under complex loading conditions and damage scenarios. This paper applies vibration-based methods to monitor the structural ...

• Improved Fault Classification and Localization in Power Transmission Networks Using VAE-Generated Synthetic Data and Machine Learning Algorithms 

  Khan, Muhammad Amir; Asad, Bilal; Vaimann, Toomas; Kallaste, Ants; Pomarnacki, Raimondas; Huynh, Khang (Peer reviewed; Journal article, 2023)

  The reliable operation of power transmission networks depends on the timely detection and localization of faults. Fault classification and localization in electricity transmission networks can be challenging because of the ...

• Motion-Control Techniques of Today and Tomorrow: A Review and Discussion of the Challenges of Controlled Motion 

  Ruderman, Michael; Iwasaki, Makoto; Chen, Wen-Hua (Peer reviewed; Journal article, 2020)

  The paper states that continued progress in integrated mechatronic design and novel actuator technologies has created new challenges for motion control technologies.

• Super-twisting based sliding mode control of hydraulic actuator without velocity state 

  Estrada, Manuel; Ruderman, Michael; Fridman, Leonid M. (Peer reviewed; Journal article, 2023)

  This paper provides a novel surface design and experimental evaluation of a super-twisting algorithm (STA) based control for hydraulic cylinder actuators. The proposed integral sliding surface allows to track a sufficiently ...

• Temperature profiles of field-aged photovoltaic modules affected by optical degradation 

  Segbefia, Oscar Kwame (Peer reviewed; Journal article, 2023)

  Moisture ingress into PV module in the presence of ultraviolet radiation, high temperature, and other environmental stressors can affect the optical integrity of the PV module. Optical degradation can take the form of ...

• A Comprehensive Review and Analysis of Nanosensors for Structural Health Monitoring in Bridge Maintenance: Innovations, Challenges, and Future Perspectives 

  Han, Daguang; Hosamo, Haidar; Ying, Chunli; Nie, Ruimin (Peer reviewed; Journal article, 2023)

  This paper presents a thorough review and detailed analysis of nanosensors for structural health monitoring (SHM) in the context of bridge maintenance. With rapid advancements in nanotechnology, nanosensors have emerged ...

• Advanced Warehouse Energy Storage System Control Using Deep Supervised and Reinforcement Learning 

  Opalic, Sven Myrdahl (Doctoral dissertations at University of Agder;no. 435, Doctoral thesis, 2023)

  The world is undergoing a shift from fossil fuels to renewable energy sources due to the threat of global warming, which has led to a substantial increase in complex buildingintegrated energy systems. These systems ...

• Fatigue crack growth in mooring chain steel at different mean load levels 

  Hellum, Vidar; Gabrielsen, Øystein; Ås, Sigmund Kyrre (Peer reviewed; Journal article, 2023)

  The fatigue crack growth rates of R4 mooring chain steel at different R-ratios are investigated. Crack growth experiments are performed at three different R-ratios, 0.1, 0.3 and 0.7, utilizing compact tension specimens in ...

• Performance Analysis of PV Power Plants Across Norway 

  Kristiansen, Martin Krebs (Master thesis, 2023)

  This thesis examines hourly aggregated data from 501 photovoltaic (PV) installations, builds a better knowledge foundation about the geographical performance of PV systems in Norway, and provides a groundwork for how PV ...

• Exploring the Limits of Early Predictive Maintenance in Wind Turbines Applying an Anomaly Detection Technique 

  Jankauskas, Mindaugas; Serackis, Artūras; Šapurov, Martynas; Pomarnacki, Raimondas; Baskys, Algirdas; Huynh, Khang; Vaimann, Toomas; Zakis, Janis (Peer reviewed; Journal article, 2023)

  The aim of the presented investigation is to explore the time gap between an anomaly appearance in continuously measured parameters of the device and a failure, related to the end of the remaining resource of the device-critical ...

• Experimental comparison of a dual-spar floating wind farm with shared mooring against a single floating wind turbine under wave conditions 

  Lopez-Olocco, Tomas; Liang, Guodong; Medina-Manuel, Antonio; Ynocente, Leandro Saavedra; Jiang, Zhiyu; Souto-Iglesias, Antonio (Peer reviewed; Journal article, 2023)

  Shared mooring can potentially be a cost-reduction factor for future floating wind farms. To assess the effect of shared mooring on the response dynamics of floating wind turbines (FWTs), experiments have been conducted ...

• Dynamic analysis of a dual-spar floating offshore wind farm with shared moorings in extreme environmental conditions 

  Liang, Guodong; Jiang, Zhiyu; Merz, Karl Otto (Peer reviewed; Journal article, 2023)

  The concept of a shared mooring system was proposed to reduce mooring and anchoring costs. Shared moorings also add complexity to the floating offshore wind farm system and pose design challenges. To understand the system ...

• Numerical and Experimental Study of Shared Mooring Systems for Prototype Floating Wind Farms 

  Liang, Guodong (Doctoral dissertations at the University of Agder;no. 431, Doctoral thesis, 2023)

  Conventional mooring systems represent a substantial portion of the cost of a floating offshore wind farm (FOWF). The concept of shared mooring was initially proposed to reduce the overall usage of mooring lines and the ...

• 3D Sensor Placement and Embedded Processing for People Detection in an Industrial Environment 

  Dybedal, Joacim (Doctoral Dissertations at the University of Agder; no. 433, Doctoral thesis, 2023)

  At a time when autonomy is being introduced in more and more areas, computer vision plays a very important role. In an industrial environment, the ability to create a real-time virtual version of a volume of interest ...

• Influence of Aerodynamic Loads on a Dual-Spar Floating Offshore Wind Farm With a Shared Line in Parked Conditions 

  Liang, Guodong; Jiang, Zhiyu; Merz, Karl Otto (Chapter, 2022)

  The concept of a shared mooring system, in which adjacent wind turbines are coupled by sharing mooring lines, has been proposed to reduce the mooring costs of floating offshore wind farms. This work investigates the influence ...

• Impact of supplier-specific investments in inter-organisational information systems on strategic electronic coordination : the moderation effect of buyer dependence 

  Teryokhin, Sergei; Hannås, Gøril (Peer reviewed; Journal article, 2018)

  This paper examines the factors which influence sharing of the strategic information (in other words, electronic coordination) in a buyer–supplier dyad. The antecedents of this coordination are examined rather well in the ...

• Improving the technical properties of recycled aggregates for road construction 

  Adomako, Solomon (Doctoral Dissertations at the University of Agder; no. 428, Doctoral thesis, 2023)

  Sustainable construction, operation and maintenance of road infrastructure are currently of high priority in Norway. The development of the highway standards and specifications (e.g., N200) plays an important role, so that ...

• Modeling asteroid binary systems with the full two-body problem using surface integrals 

  Ho, Alex (Doctoral Dissertations at the University of Agder; no. 432, Doctoral thesis, 2023)

  An asteroid binary system, where two asteroids are in mutual orbit, is important to study as it can provide knowledge of the history of the asteroid population. The most important mechanism to form asteroid binaries in the ...

• Charting the path toward a greener world: A review of facilitating and inhibiting factors for carbon neutrality 

  Talwar, Shalini; Dhir, Amandeep; Luqman, Adeel; Gupta, Jaya; Gugnani, Ritika (Peer reviewed; Journal article, 2023)

  The carbon neutrality (CN) literature has witnessed a mushrooming growth but also limited attempts to systematize the mass of evidence running in multiple directions. The consequent accumulation of fragmented insights can ...

• Technical and Environmental Properties of Recycled Aggregates Produced from Concrete Sludge and Excavation Materials 

  Adomako, Solomon; Engelsen, Christian John; Døssland, Line Teigen; Danner, Tobias Alexander; Thorstensen, Rein Terje (Peer reviewed; Journal article, 2023)

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