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Vahid Hassani

Senior Research Scientist

Vahid Hassani

Senior Research Scientist

Vahid Hassani
Phone: +47 930 01 663
Department: Ships and Ocean Structures
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1796420

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 that avoids the costly matrix inversion operation in classical LS-SVM using th...

Authors Xu Haitong Hassani Vahid Guedes-Soares C.
Year 2020
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1796408

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, generic and vectorial models, are briefly introduced, and the prime system of SNA...

Authors Xu Haitong Hassani Vahid Soares C. Guedes
Year 2020
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1765801

This paper deals with adaptive regulation of wave induced vertical motion on a Surface Effect Ship (SES) at zero speed. To this end, a SES is equipped with variable vent valves, through which cushion pressure can be controlled by adjusting the air out-flow from the cushion. Model scale test and sea ...

Authors Hassani Vahid Fjellvang Snorre Ludvig Auestad Øyvind Fidje Gravdahl Jan Tommy
Year 2019
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1765779

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 air cushions can lift up to 90 % of the total vessel mass depending on the outpu...

Authors Haukeland Ola Mosebø Hassani Vahid Auestad Øyvind Fidje
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1765771

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 an air cushion with pressurized air to lift up to 90 % weight of the vehicle. A ne...

Authors Haukeland Ola Mosebø Hassani Vahid Auestad Øyvind Fidje
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1765746

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 a marine craft with catamaran hull, with flexible stern- and bow rubber -seal s...

Authors Teigland Håkon Hassani Vahid Auestad Øyvind Fidje
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1765699

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 the crew. A SES is a catamaran vessel carried in part by a pressurized air cush...

Authors Teigland Håkon Hassani Vahid Auestad Øyvind Fidje
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1760800

The least-square support vector machine (LS-SVM) is used to estimate the dynamic parameters of a nonlinear marine vessel steering model in real-time. First, maneuvering tests are carried out based on a scaled free-running ship model. The parameters are estimated using standard LS-SVM and compared wi...

Authors Xu Haitong Hinostroza M. A. Hassani Vahid Guedes Soares C
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1694217

Uncertainty analysis of the identified hydrodynamic coefficients of a nonlinear manoeuvring model is presented in this paper. The classical parameter estimation method, Least Square, is briefly introduced, and the uncertainty of the hydrodynamic coefficients due to the noise in the measured data is ...

Authors Xu Haitong Hassani Vahid Guedes Soares Carlos
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1656223

Design of highly complex vessels involves a multitude of disciplines designing different modules and units of the vessel using different tools and methods requiring specialist competence in specific areas. The vessel may have a complex operational profile and multiple key performance indices. Subopt...

Authors de Jongh Martijn Olsen K. E. Berg Bård Jansen J. E. Torben Sverre Abt Claus Dimopoulos G. Zymaris A. Hassani Vahid
Year 2018
Type Part of a book/report