Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM): Recent submissions
Now showing items 421-440 of 1741
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Development of a method for evaluation of measures used for winterization of offshore facilities and units
(Peer reviewed; Journal article, 2019)The environmental conditions in the Barents Sea include low temperatures, wind, snow and precipitation influencing safety, working environment, operations and equipment functionality. The conditions are not extreme compared ... -
Numerical simulation-based effect characterization and design Optimization of micro cross-flow turbine
(Peer reviewed; Journal article, 2019)In this era of high power demand along with a need for sustainability, small and micro-scale hydro turbines are indispensable, especially for off-grid power generation. These hydro-turbines are more appealing, particularly ... -
Synthesis and characterization of fly ash and slag based geopolymer concrete
(Peer reviewed; Journal article, 2019)This paper presents the formulation and characterization of composite fly ash and slag based geopolymer concrete. Potassium hydroxide (KOH) and potassium silicate (K2SiO3) liquid alkaline activators were used in the ... -
Fatigue strength degradation of corroded structural details: A formula for S‐N curve
(Peer reviewed; Journal article, 2019)A formula is proposed to predict fatigue strength of corroded members and joints of steel structures. The concept of the formula is first studied from recently identified mechanism of corrosion fatigue. Hence, the corresponding ... -
The effects of slab geometries and wave directions on the steep wave-induced soil response and liquefaction around gravity-based offshore foundations
(Peer reviewed; Journal article, 2019)Gravity-based offshore foundations generally consist of a bottom slab and one or more cylindrical shafts on top of it. The slab geometry can strongly affect the surrounding flow pattern, dynamic wave pressure distribution ... -
Mooring systems analysis of floating wind turbines in Italian seas
(Peer reviewed; Journal article, 2019)In recent years, interest in exploiting wind power in deep waters has grown, with the realization of floating structures that could accommodate a turbine and produce electricity. One of the many challenges that these ... -
Winterization and drilling operations in cold climate areas
(Peer reviewed; Journal article, 2019)Petroleum operations in remote locations offshore off northern Norway call for technical and operational solutions, sustainable and capable of withstanding extreme and harsh weather conditions. This paper discusses hazards, ... -
Technical–Economic Feasibility Analysis of Subsea Shuttle Tanker
(Peer reviewed; Journal article, 2022)This paper presents the technical and economic feasibility analysis of the subsea shuttle tanker (SST). The SST is proposed as an alternative to subsea pipelines and surface tankers with the primary purpose of transporting ... -
Bed packing configuration and hot-spot utilization for low-temperature CO2 methanation on monolithic reactor
(Peer reviewed; Journal article, 2022)The revival of CO2 methanation (Sabatier reaction) as part of the large-scale Power-to-Gas technology has stimulated the development of novel reactor concepts for better heat management due to its exothermic nature. The ... -
Analysis of spar and semi-submersible floating wind concepts with respect to human exposure to motion during maintenance operations
(Peer reviewed; Journal article, 2022)Floating offshore wind turbines (FOWTs) are expected to experience onsite maintenances and inspections during their lifetimes. To carry out offshore maintenance activities, a crew will be transferred to an FOWT and spend ... -
Power performance and dynamic responses of a combined floating vertical axis wind turbine and wave energy converter concept
(Peer reviewed; Journal article, 2019)Currently, the development of floating wind turbines and wave energy converters (WECs) is both facing the challenge of high cost-of-energy (CoE). A promising way to reduce the CoE is to employ combined wind and wave energy ... -
Testing of a new transport and installation method for offshore wind turbines
(Peer reviewed; Journal article, 2019)Transport and installation of offshore wind turbines require considerable efforts and can be time consuming, in particular when jackups are used for lifting operations. This is mainly due to the specific weather window ... -
Management of challenges during the construction of offshore facilities
(Peer reviewed; Journal article, 2019)The construction of offshore facilities for development of oil and gas deposits is preceded by careful Conceptual Studies, Front-End Engineering Design Studies (FEED studies) and a Detailed Engineering phase including ... -
Rationale for Development of Design Basis for Barents Sea field developments
(Peer reviewed; Journal article, 2019)Developments of hydrocarbon fields in the Barents Sea would normally include surface process units; thus, we must take into account the ice conditions in the area. Alternatively, smaller fields can be developed as satellites ... -
The influence of the composition of water on the results of accelerated aging resistance testing of low voltage subsea cables insulation
(Peer reviewed; Journal article, 2019)The composition of water changes with temperature, for instance, the saturation rate of water in polyurethane membranes is related to the temperature. Thus, it is necessary to evaluate the influence of the composition of ... -
Effect of hydrogen on mechanical properties and fracture of martensitic carbon steel under quenched and tempered conditions
(Peer reviewed; Journal article, 2020)The change in the mechanical properties of tempered high strength carbon steel (AISI 4130) due to hydrogen embrittlement (HE) has been investigated using slow strain rate tensile tests (SSRT). The heat treatment processes ... -
Technological process planning focused on complex manufacturing processes of the digital era
(Peer reviewed; Journal article, 2020)The paper concerns the planning of complex technological processes (CTP). Nowadays, CTP are gaining new meaning in manufacturing environments. This is due to the increased number of innovative solutions having a crucial ... -
Investigation of mechanical properties of false banana/glass fiber reinforced hybrid composite materials
(Peer reviewed; Journal article, 2020)The objective of the work presented in this article is to investigate the mechanical properties of false banana/glass fiber reinforced hybrid composite materials at different fiber volume fractions and orientation of hybrid ... -
Improving Prediction of Springback in Sheet Metal Forming Using Multilayer Perceptron-Based Genetic Algorithm
(Peer reviewed; Journal article, 2020)This paper presents the results of predictions of springback of cold-rolled anisotropic steel sheets using an approach based on a multilayer perceptron-based artificial neural network (ANN) coupled with a genetic algorithm ... -
Testing the robustness of optimal access vessel fleet selection for operation and maintenance of offshore wind farms
(Peer reviewed; Journal article, 2017)Optimising the operation and maintenance (O&M) and logistics strategy of offshore wind farms implies the decision problem of selecting the vessel fleet for O&M. Different strategic decision support tools can be applied to ...