• 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, ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...