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Influence of Viscosity and Non-Linearities in Predicting Motions of a Wind Energy Offshore Platform in Regular Waves
(Peer reviewed; Journal article, 2018)Motion prediction of floating bodies in waves represents one of the most challenging problems in naval hydrodynamics. The solution of the seakeeping problem involves the study of complex non-linear wave-body interactions ... -
Influence of Weight-on-Bit on Percussive Drilling Performance
(Peer reviewed; Journal article, 2020)A phenomenological model for percussive drilling systems is proposed in this paper to explain the experimentally demonstrated existence of an optimal weight-on-bit (WOB), for which the rate of penetration (ROP) is maximized. ... -
Information model for functional safety
(Research report, 2023)A main objective of this report has been to contribute toward further digitalisation and standardisation of the petroleum industry. In particular, the report explores: • How ideas from Industry 4.0 and the AAS (asset ... -
Information-driven robotic sampling in the coastal ocean
(Journal article; Peer reviewed, 2018)Efficient sampling of coastal ocean processes, especially mechanisms such as upwelling and internal waves and their influence on primary production, is critical for understanding our changing oceans. Coupling robotic ... -
Infrared Object Detection & Tracking in UAVs
(Master thesis, 2013)The present thesis describes the design and implementation of a small, light weight and power efficient payload system for the use in unmanned aerial vehicles (UAVs). The primary application of the payload system is that ... -
Infrastructure for Collecting and Analysing near Real-Time Data from Several Water Meters Using Wireless M-Bus
(Master thesis, 2021)Bruken av smarte vannmålere blir mer populært, og flere norske kommuner, inkludert Trondheim, ønker at det tas i bruk for alle husstander. Wireless Meter-Bus (wM-Bus) har vist seg å være en populær standard i denne prosessen ... -
Inhibits and Overrides: Applications Seen in a Safety Perspective
(Master thesis, 2011)The main purpose of this thesis has been to identify the general usage of the applications textit{inhibit} and textit{override} for a collection of installations operated by Statoil ASA. The applications are provided by a ... -
Inner Loop Adaptive Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions
(Master thesis, 2022)Motivert av økende bruk av små ubemannede luftfartøy utforsker denne oppgaven bruken av MRAC (model reference adaptive control), en type adaptiv regulator, og sammenligner det mot konvensjonelle PID-regulatorer. Begge ... -
Innovation in Underwater Robots: Biologically Inspired Swimming Snake Robots
(Journal article; Peer reviewed, 2016)Increasing efficiency by improving locomotion methods is a key issue for underwater robots. Moreover, a number of different control design challenges must be solved to realize operational swimming robots for underwater ... -
An Input-Voltage-Sharing Control Strategy of Input-Series Output-Parallel Isolated Bidirectional DC/DC Converter for DC Distribution Network
(Peer reviewed; Journal article, 2021)Input-series-output-parallel (ISOP) isolated bidirectional direct current (dc)/dc converter (IBdc) becomes a preferred scheme connecting high-voltage and low-voltage bus in dc distribution network. Input-voltage-sharing ... -
Instability Mode Recognition of Grid-Tied Voltage Source Converters with Nonstationary Signal Analysis
(Chapter, 2022)With the increasing penetration of voltage-source-converter (VSC) -interfaced distributed generations (DGs) in power systems, oscillation issues have been widely concerned whereas the root cause and nature of the oscillation ... -
Instance Segmentation and Pose Estimation of Assembly Parts Using Deep Learning and Synthetic Data Generation
(Master thesis, 2019)Ved å bestemme nøyaktig translasjon og rotasjon av objekter, kan mer sofistikerte hjelpesystemer og roboter utmerke seg i en rekke scenarier og næringer. På fabrikkene i Volvo, foregår det kontinuerlig forskning som ser ... -
Instantaneous frequency tracking of harmonic distortions for grid impedance identification based on Kalman filtering
(Chapter, 2016)This paper presents a non-invasive approach for real-time grid impedance identification based on the principle of instantaneous frequency tracking of voltage and current harmonics already present in the system, by the use ... -
Instrumentation, actuation and software development of Bipedal Robot.
(Bachelor thesis, 2021)Tobeinte roboter kan bevege seg i røffere terreng hvor andre roboter ikke kommer til. Disse robotene er ofte avhengige av veldig kompliserte matematiske funksjoner. Det endelige målet med dette prosjektet er å lage en robot ... -
Instrumentering av autonomt ubemannet fly: CyberSwan
(Master thesis, 2007)Målet med CyberSwan er å lage en generell plattform for et autonomt ubemannet fly. Gjennom arbeidet som er beskrevet i denne rapporten er det kommet frem til et egnet instrumenteringsplattform for CyberSwan. Med ... -
Instrumentering og styring av produksjonsprosess for plankton
(Master thesis, 2011)I denne oppgaven er det presentert instrumentering og reguleringssystem av produksjonsprosess for plankton. Systemet er utviklet og implementering med to tanker for produksjon av planktonet rotatorier. PC brukes som ... -
Instrumenterings- og beslutningsstøttesystem for skjellproduksjon
(Master thesis, 2013)For å optimalisere produksjon og høsting av skjell, er produsenten avhengig av effektivog presis estimering av vekst og biomasse i anlegget. Grunnlaget for dette er regulærprøvetaking av individene i anlegget, men i dag ... -
Integral Line-of-Sight for path following of underwater snake robots
(Journal article, 2014)This paper considers straight line path following control of underwater snake robots in the presence of constant irrotational currents. An integral line-of-sight (LOS) guidance law is proposed, which is combined with a ... -
Integral Line-of-Sight Guidance and Control of Underactuated Marine Vehicles
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:316, Doctoral thesis, 2014)This dissertation presents an extensive analysis of the integral line-of-sight (ILOS) guidance method for path following tasks of underactuated marine vessels and vehicles, operating on and below the sea surface. It is ... -
Integral Line-of-Sight Guidance and Control of Underactuated Marine Vehicles: Theory, Simulations and Experiments
(Journal article; Peer reviewed, 2016)This paper presents an extensive analysis of the integral line-of-sight (ILOS) guidance method for path-following tasks of underactuated marine vehicles, operating on and below the sea surface. It is shown that due to the ...