Blar i Institutt for havromsoperasjoner og byggteknikk på forfatter "Zhang, Houxiang"
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Modeling and Analysis of Motion Data from Dynamically Positioned Vessels for Sea State Estimation
Cheng, Xu; Li, Guoyuan; Skulstad, Robert; Chen, Shengyong; Hildre, Hans Petter; Zhang, Houxiang (Chapter, 2019)Developing a reliable model to identify the sea state is significant for the autonomous ship. This paper introduces a novel deep neural network model (SeaStateNet) to estimate the sea state based on the ship motion data ... -
Modeling of Offshore Crane and Marine Craft in Wave Motion
Landsverk, Ronny; Zhou, Jing; Hovland, Geir; Zhang, Houxiang (Peer reviewed; Journal article, 2020)Safe handling of heavy payloads in an offshore environment requires careful planning and depends on the interaction between a crane and a vessel. This paper investigates the coupled dynamics between a multipurpose crane ... -
Modeling, Simulation and Control of Motion Compensated Gangway in Offshore Operations
Yu, Feilong (2017;, Master thesis, 2017)This thesis is based on the idea to develop the integrated model of offshore gangway model including multi-body dynamics model and hydraulic system model with bond-graph method in 20-sim. And based on that model, active ... -
ModGrasp: An open-source rapid-prototyping framework for designing low-cost sensorised modular hands
Sanfilippo, Filippo; Zhang, Houxiang; Pettersen, Kristin Ytterstad; Salvietti, G.; Prattichizzo, Domenico (Chapter, 2014)This paper introduces ModGrasp, an open-source virtual and physical rapid-prototyping framework that allows for the design, simulation and control of low-cost sensorised modular hands. By combining the rapid-prototyping ... -
Motion Analysis of Live Objects by Super-Resolution Fluorescence Microscopy
Yao, Chunyan; Zhang, Jianwei; Wu, Guang; Zhang, Houxiang (Journal article; Peer reviewed, 2012)Motion analysis plays an important role in studing activities or behaviors of live objects in medicine, biotechnology, chemistry, physics, spectroscopy, nanotechnology, enzymology, and biological engineering. This paper ... -
MPC-based path planning for ship collision avoidance under COLREGS
Zhu, Mingda; Skulstad, Robert; Zhao, Luman; Zhang, Houxiang; Li, Guoyuan (Chapter, 2022)In recent years, maritime operations have become more technologically demanding due to the more complex working condition and stricter safety requirements. The need to improve the performance of human-machine cooperation ... -
Multi-ship collision avoidance control strategy in close-quarters situations: a case study of Dover Strait ferry maneuvering
Zhao, Luman; Li, Guoyuan; Zhang, Houxiang (Chapter, 2020)Multi-ship collision avoidance is challenging in busy waters like the Dover Strait. Usually, ships follow the rules for avoiding collisions which are given by the Convention on the International Regulations for Preventing ... -
Multi-step Ship Roll Motion Prediction Based on Bi-LSTM and Input Optimization
Li, Shiyang; Wang, Tongtong; Li, Guoyuan; Skulstad, Robert; Zhang, Houxiang (Chapter, 2023)Ship roll is a crucial metric in assessing the vessel's safety in offshore operations. This paper investigates input selection for predicting short-term ship roll motion using the Bidirectional Long Short-Term Memory Network ... -
A Multilevel Convolutional Recurrent Neural Network for Blade Icing Detection of Wind Turbine
Tian, Weiwei; Cheng, Xu; Li, Guoyuan; Shi, Fan; Chen, Shengyong; Zhang, Houxiang (Peer reviewed; Journal article, 2021)Blade icing detection becomes increasingly significant as it can avoid revenue loss and power degradation. Conventional methods are usually limited by additional costs, and model-driven methods heavily depend on prior ... -
A multiple-output hybrid ship trajectory predictor with consideration for future command assumption
Kanazawa, Motoyasu; Skulstad, Robert; Li, Guoyuan; Hatledal, Lars Ivar; Zhang, Houxiang (Peer reviewed; Journal article, 2021)Onboard sensors contribute to data-driven understanding of complex and nonlinear ship dynamics in real time. By using sensors, precise ship trajectory prediction plays a key role in intelligent collision avoidance. A hybrid ... -
Navigating patterns analysis for on-board guidance support in crossing collision avoidance operations
Wu, Baiheng; Li, Guoyuan; Zhao, Luman; Aandahl, Hans-Ingar Johansen; Hildre, Hans Petter; Zhang, Houxiang (Peer reviewed; Journal article, 2021) -
Neural-network-based modelling and analysis for time series prediction of ship motion
Li, Guoyuan; Kawan, Bikram; Wang, Hao; Zhang, Houxiang (Journal article, 2017)This paper presents a data-driven model for time series prediction of ship motion. Prediction based on past time series of data is a powerful function in modern ship support systems. For a large amount of ship sensor data, ... -
A Novel Channel and Temporal-wise Attention in Convolutional Networks for Multivariate Time Series Classification
Cheng, Xu; Han, Peihua; Li, Guoyuan; Chen, Shengyong; Zhang, Houxiang (Peer reviewed; Journal article, 2020)Multivariate time series classification (MTSC) is a fundamental and essential research problem in the domain of time series data mining. Recently deep neural networks emerged as an end-to-end solution for MTSC and achieve ... -
A Novel Densely Connected Convolutional Neural Network for Sea State Estimation Using Ship Motion Data
Cheng, Xu; Li, Guoyuan; Ellefsen, Andre; Chen, Shengyong; Hildre, Hans Petter; Zhang, Houxiang (Peer reviewed; Journal article, 2020)Sea state estimation is a fundamental problem in the development of autonomous ships. Traditional methods such as wave buoy, satellites, and wave radars are limited by locations, clouds and costs, respectively. Model-based ... -
Numerical Study for a Catamaran Gripper-Monopile Mechanism of a Novel Offshore Wind Turbine Assembly Installation Procedure
Hatledal, Lars Ivar; Zhang, Houxiang; Halse, Karl Henning; Hildre, Hans Petter (Chapter; Peer reviewed, 2017)Current methods for installation of offshore wind turbines are all sensitive to the weather conditions and the present cost level of offshore wind power is more than twice the cost of land-based units, increasing with water ... -
Online Fault Detection in Autonomous Ferries: Using fault-type in-dependent spectral anomaly detection
Ellefsen, Andre; Han, Peihua; Cheng, Xu; Holmeset, Finn Tore; Æsøy, Vilmar; Zhang, Houxiang (Peer reviewed; Journal article, 2020)Enthusiasm for ship autonomy is flourishing in the maritime industry. In this context, data-driven Prognostics and Health Management (PHM) systems have emerged as the optimal way to improve operational reliability and ... -
Open Simulation Platform – An Open-Source Project for Maritime System Co-Simulation
Smogeli, Øyvind Rasmussen; Ludvigsen, Kristine Bruun; Jamt, Levi; Vik, Bjørnar; Nordahl, Håvard; Kyllingstad, Lars Tandle; Yum, Kevin Koosup; Zhang, Houxiang (Chapter, 2020)The Open Simulation Platform (OSP) is an open-source industry initiative for co-simulation of maritime equipment, systems and entire ships. With steadily increasing complexity due to the increasing use of software in ship ... -
Optimizing CNN Hyperparameters for Mental Fatigue Assessment in Demanding Maritime Operations
Monteiro, Thiago Gabriel; Skourup, Charlotte; Zhang, Houxiang (Peer reviewed; Journal article, 2020)Human-related issues play an important role in accidents and causalities in demanding maritime operations. The industry lacks an approach capable of preventively assessing maritime operators' mental fatigue and awareness ... -
Parameter Identification of Ship Manoeuvring Model Under Disturbance Using Support Vector Machine Method
Wang, Tongtong; Li, Guoyuan; Wu, Baiheng; Æsøy, Vilmar; Zhang, Houxiang (Peer reviewed; Journal article, 2021).Demanding marine operations increase the complexity of manoeuvring. A highly accurate ship model promotes predicting ship motions and advancing control safety. It is crucial to identify the unknown hydrodynamic coefficients ... -
Parameterization and Visualization of Marine Crane Concept Design
Chu, Yingguang; Pedersen, Birger Skogeng; Zhang, Houxiang (Chapter; Peer reviewed, 2016)The paper presents a flexible and lightweight fast prototyping approach for marine crane concept design based on WebGL. The goal is to develop a user-friendly tool that facilitates the communication between designers, ...