Browsing TKD - Institutt for maskin, elektronikk og kjemi by Author "Hassani, Vahid"

Now showing items 1-11 of 11

    • Comparing generic and vectorial nonlinear manoeuvring models and parameter estimation using optimal truncated least square support vector machine 

      Xu, Haitong; Hassani, Vahid; Soares, C. Guedes (Applied Ocean Research;Volume 97, April 2020, Journal article; Peer reviewed, 2020-01-18)
      An optimal truncated least square support vector machine (LS-SVM) is proposed for the parameter estimation of nonlinear manoeuvring models based on captive manoeuvring tests. Two classical nonlinear manoeuvring models, ...

    • A Deep Learning Approach To Dead-Reckoning Navigation For Autonomous Underwater Vehicles With Limited Sensor Payloads 

      Saksvik, Ivar; Alcocer, Alex; Hassani, Vahid (OCEANS;OCEANS 2021: San Diego – Porto, Conference object, 2022)
      This paper presents a deep learning approach to aid dead-reckoning (DR) navigation using a limited sensor suite. A Recurrent Neural Network (RNN) was developed to predict the relative horizontal velocities of an Autonomous ...

    • Design and verification of a sway-yaw control system for Surface Effect Ships using vent valves 

      Teigland, Håkon; Hassani, Vahid; Auestad, Øyvind Fidje (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Journal article; Peer reviewed, 2019-12-26)
      For an offshore worker in the oil and gas industry, the helicopter transport is the activity associated with the highest risk. An alternative to helicopter crew transfers is to use Surface Effect Ships (SES) to transport ...

    • Experimental Results for Pitch Damping in Speed and Wave for a Surface Effect Ship with Split Air Cushion 

      Hassani, Vahid; Auestad, Øyvind; Nataletti, Marco (Control Technology and Applications (CCTA);2020 IEEE Conference on Control Technology and Applications (CCTA), Conference object, 2020-09-28)
      This paper presents experimental results in damping the pitch motion on a Surface Effect Ship (SES) in high vessel speeds in presence of regular wave. The SES is a marine craft supported by pressurized air cushion. It ...

    • Hybrid Collision Avoidance with Moving Obstacles 

      Chai, Yi; Hassani, Vahid (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Peer reviewed, 2019-12-26)
      This paper proposes a hybrid collision avoidance (COLAV) approach based on the integration of a global path planning algorithm and a reactive collision avoidance technique. This combination provides a robust path planning ...

    • Operator focused automation of ROV operations 

      Teigland, Håkon; Hassani, Vahid; Møller, Ments Tore (Symposium on Autonomous Underwater Vehicle Technology (AUV); 2020 IEEE/OES Autonomous Underwater Vehicles Symposium (AUV), Journal article; Peer reviewed, 2020-11-30)
      Aiming to provide higher level of autonomy in operation of Remotely Operated Vehicles (ROVs) in subsea industries, this paper aims at identifying the tasks in ROV operations that would see the greatest benefits from ...

    • Surface Effect Ship with Four Air Cushions Part I: Dynamic Modeling and Simulation 

      Haukeland, Ola; Hassani, Vahid; Auestad, Øyvind Fidje (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Peer reviewed, 2019-12-26)
      This paper deals with dynamic modelling and numerical simulations of a Surface Effect Ship (SES) with split cushion. Traditionally, a SES is a catamaran with front and aft seals equipped with lift fans that could fill ...

    • Surface Effect Ship with Four Air Cushions Part II: Roll and Pitch Damping 

      Haukland, Ola; Hassani, Vahid; Auestad, Øyvind Fidje (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Peer reviewed, 2019-12-26)
      This paper introduce damping of roll and pitch motion on a Surface Effect Ship (SES) in low vessel speeds. The SES consist of two side-hulls, a reinforced rubber bow and stern seal skirt system and four air cushion. The ...

    • Truncated least square support vector machine for parameter estimation of a nonlinear manoeuvring model based on PMM tests 

      Xu, Haitong; Hassani, Vahid; Guedes-Soares, C. (Applied Ocean Research;Volume 97, April 2020, Journal article; Peer reviewed, 2020-01-28)
      A new version of least square support vector machine (LS-SVM), the truncated LS-SVM, is proposed to estimate the nondimensionalized hydrodynamic coefficients. Truncated LS-SVM is shown to be an efficient and robust method ...

    • Underwater Manipulator Control for Single Pilot ROV Control 

      Teigland, Håkon; Møller, Ments Tore; Hassani, Vahid (IFAC-PapersOnLine;, Peer reviewed; Journal article, 2022)
      Remotely operated vehicles (ROVs) are the main driver in inspection, maintenance, and repair (IMR) of underwater structures. The commercial use of ROVs in industrial applications dates to the 1980s, however, the control ...

    • Vent Valve Thrust Force for Surface Effect Ships 

      Teigland, Håkon; Hassani, Vahid; Auestad, Øyvind Fidje (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Peer reviewed, 2019-12-26)
      The Surface Effect Ship (SES) holds promise as a viable and appealing alternative for transferring crew to offshore wind farms and oil platforms due to its superior seakeeping capability, high comfort and speed. A SES is ...