Browsing NTNU Open by Author "Hatledal, Lars Ivar"
Now showing items 1-20 of 32
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A Benchmarking Framework for Control Methods of Maritime Cranes Based on the Functional Mockup Interface
Sanfilippo, Filippo; Hatledal, Lars Ivar; Pettersen, Kristin Ytterstad; Zhang, Houxiang (Journal article, 2017)A benchmark framework for advanced control methods of maritime cranes is presented based on the use of the functional mockup interface. The system integrates different manipulator models, all the corresponding hydraulic ... -
A Language and Platform Independent Co-Simulation Framework Based on the Functional Mock-Up Interface
Hatledal, Lars Ivar; Styve, Arne; Hovland, Geir; Zhang, Houxiang (Journal article; Peer reviewed, 2019)The main goal of the Functional Mock-up Interface (FMI) standard is to allow the sharing of simulation models across tools. To accomplish this, FMI relies on a combination of XML-files and compiled C-code packaged in a zip ... -
A Software Architecture for Simulation and Visualisation based on the Functional Mock-up Interface and Web Technologies
Hatledal, Lars Ivar; Schaathun, Hans Georg; Zhang, Houxiang (Chapter, 2015)This paper presents a software architecture for a collaborative virtual environment (CVE) for simulation and visualisation based on the Functional Mock-up Interface (FMI) for co-simulation and web technologies. FMI has ... -
A Voxel-Based Numerical Method for Computing and Visualising the Workspace of Offshore Cranes
Hatledal, Lars Ivar; Sanfilippo, Filippo; Chu, Yingguang; Zhang, Houxiang (Chapter; Peer reviewed, 2015)Workspace computation and visualisation is one of the most important criteria in offshore crane design in terms of geometry dimensioning, installation feasibility and operational performance evaluation. This paper presents ... -
Adaptive Data-driven Predictor of Ship Maneuvering Motion Under Varying Ocean Environments
Wang, Tongtong; Skulstad, Robert; Kanazawa, Motoyasu; Hatledal, Lars Ivar; Li, Guoyuan; Zhang, Houxiang (Chapter, 2022)Modern marine vessels operate increasingly autonomously, enabled by the strong interaction between data acquisition and analysis. The data-driven technology has been widely applied and significantly benefits maritime ... -
An Object-Oriented Modeling Approach to Virtual Prototyping of Marine Operation Systems Based on Functional Mock-Up Interface Co-Simulation
Chu, Yingguang; Hatledal, Lars Ivar; Æsøy, Vilmar; Ehlers, Sören; Zhang, Houxiang (Journal article; Peer reviewed, 2018)This paper presents an object-oriented modeling (OOM) approach to model development of marine operation systems, specifically the hydraulic systems of marine cranes. Benefited from the rapid development of computation ... -
Co-simulation as a Fundamental Technology for Twin Ships
Hatledal, Lars Ivar; Skulstad, Robert; Li, Guoyuan; Styve, Arne; Zhang, Houxiang (Peer reviewed; Journal article, 2020)The concept of digital twins, characterized by the high fidelity with which they mimic their physical counterpart, provide potential benefits for the next generation of advanced ships. It allows analysis of data and ... -
Co-simulation-based Pre-training of a Ship Trajectory Predictor
Kanazawa, Motoyasu; Hatledal, Lars Ivar; Li, Guoyuan; Zhang, Houxiang (Chapter, 2022)A ship trajectory predictor plays a key role in the predictive decision making of intelligent marine transportation. For better prediction performance, the biggest technical challenge is how we incorporate prior knowledge, ... -
Controlling Kuka Industrial Robots : Flexible Communication Interface JOpenShowVar.
Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Fago, Massimiliano; Pettersen, Kristin Ytterstad (Journal article, 2015)JOpenShowVar is a Java open-source cross-platform communication interface to Kuka industrial robots. This novel interface allows for read-write use of the controlled manipulator variables and data structures. JOpenShowVar, ... -
Coupling of dynamic reaction forces of a heavy load crane and ship motion responses in waves
Chu, Yingguang; Li, Guoyuan; Hatledal, Lars Ivar; Holmeset, Finn Tore; Zhang, Houxiang (Peer reviewed; Journal article, 2021)The conventional approach to dynamic analysis of ship motion response with shipboard operation equipment is usually done by establishing combined equations of motion of the multi-body system. The weakness of such methods ... -
A Digital Twin of the Research Vessel Gunnerus for Lifecycle Services: Outlining Key Technologies
Zhang, Houxiang; Li, Guoyuan; Hatledal, Lars Ivar; Chu, Yingguang; Ellefsen, André Listou; Han, Peihua; Major, Pierre Yann; Skulstad, Robert; Wang, Tongtong; Hildre, Hans Petter (Journal article; Peer reviewed, 2022) -
Effect of Ship Propulsion Retrofit on Maneuverability Research Based on Co-simulation
Wang, Tongtong; Hatledal, Lars Ivar; Kanazawa, Motoyasu; Li, Guoyuan; Zhang, Houxiang (Chapter, 2022)Shipping has been dominating the transportation industry in worldwide trade. During the service life of a vessel, conversions in mid-life often occur for economic or technical purposes. By replacing expired components or ... -
Enabling Python Driven Co-Simulation Models with PythonFMU
Hatledal, Lars Ivar; Collonval, Frederic; Zhang, Houxiang (Chapter, 2020)This paper introduces PythonFMU, an easy to use framework for exporting Python 3.x code as cosimulation compatible models compliant with version 2.0 of the Functional Mock-up Interface (FMI). The framework consists of a ... -
Enhancing SSP creation using sspgen
Hatledal, Lars Ivar; Fagerhaug, Eirik (Chapter, 2022)The System Structure and Parameterization (SSP) standard is a tool independent standard to define complete systems consisting of one or more components, including its parameterization, that can be transferred between ... -
Evaluating Emulate3D – Possible digital twin solution for Aventi
Alssaede, Mohamad Khalied; Santhirakanthan, Atheesan (Bachelor thesis, 2024)Denne bacheloroppgaven evaluerer Emulate3D-programvaren for Aventi. For å oppnå dette er det utviklet en applikasjon for å simulere en veitunnel. Programvaren eies av Rockwell Automation og gir en plattform for å lage og ... -
A Flexible Network Interface for a Real-time Simulation Framework
Hatledal, Lars Ivar (Master thesis, 2017)This thesis presents a flexible network interface for the real-time simulation framework, Vico. In particular, the interface allows remote clients to connect to simulations over the network using a variety of transport ... -
FMI4j: A Software Package for working with Functional Mock-up Units on the Java Virtual Machine
Hatledal, Lars Ivar; Zhang, Houxiang; Styve, Arne; Hovland, Geir (Chapter, 2018)This paper introduces FMI4j, a software package for working with Functional Mock-up Units (FMUs) on the Java Virtual Machine (JVM). FMI4j is written in Kotlin, which is 100% interoperable with Java, and consists of programming ... -
FMU-proxy: A Framework for Distributed Access to Functional Mock-up Units
Hatledal, Lars Ivar; Zhang, Houxiang; Styve, Arne; Hovland, Geir (Chapter, 2019)The main goal of the Functional Mock-up Interface (FMI) standard is to allow simulation models to be shared across tools. To accomplish this, FMI relies on a combination of XML-files and compiled C-code packaged in a zip ... -
IMPLEMENTATION AND EVALUATION OF AN ARTHROSCOPIC TRACKER SYSTEMI FOR INTRAOPERATIVE MOTION TRACKING AND FORCE REGISTRATION
Bjelland, Øystein; Hatledal, Lars Ivar; Steinert, Martin; Bye, Robin Trulssen (Chapter, 2023) -
Incorporating Approximate Dynamics Into Data-Driven Calibrator: A Representative Model for Ship Maneuvering Prediction
Wang, Tongtong; Li, Guoyuan; Hatledal, Lars Ivar; Skulstad, Robert; Æsøy, Vilmar; Zhang, Houxiang (Peer reviewed; Journal article, 2021)High-fidelity models capable of accurately predicting ship motion are critical for promoting innovation and efficiency in the maritime industry. However, creating an advanced model that comprehensively represents the system ...