eprintid: 3473 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/34/73 datestamp: 2023-11-09 15:51:44 lastmod: 2023-11-09 15:51:44 status_changed: 2023-11-09 15:46:54 type: conference_item metadata_visibility: show creators_name: Kurian, V.J. creators_name: Ng, C.Y. creators_name: Liew, M.S. title: A study on motion responses of classic spar platforms subjected to short crested waves ispublished: pub keywords: Dynamic equations of motion; Experimental and numerical studies; Model tests; Response amplitude operator; Short-crested waves; Stiffness matrices; Three degrees of freedom; Wave basins, Dynamic response; Equations of motion; Industrial applications; Stiffness matrix, Spar platforms note: cited By 2; Conference of 2013 IEEE Business Engineering and Industrial Applications Colloquium, BEIAC 2013 ; Conference Date: 7 April 2013 Through 9 April 2013; Conference Code:98689 abstract: The wind generated seastate in the real sea condition is well represented by the short crested waves or the multi-directional waves. The short crested waves are identified as the linear summation of the randomly generatedlong crested waves that propagate to different directions. In this paper, experimental and numerical studies on the dynamic responses of the classic spar platforms subjected toshort crested waves are presented. The experimental study was performed in the Offshore Laboratory of Universiti Teknologi PETRONAS. In the study, the classic spar model was restrained by four mooring lines and subjected to short crested waves. A MATLAB code was developed to analyze the dynamic responses of the classic spar. The classic spar was modeled as a rigid body with three degrees of freedom in surge, heave and pitch motions. In each time step of the analysis, the mass, damping and stiffness matrices were computed. Newmark Beta method was employed to solve the dynamic equations of motion. Response amplitude operators (RAO) were estimated and compared with the measurements. The results compared well. © 2013 IEEE. date: 2013 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883092358&doi=10.1109%2fBEIAC.2013.6560138&partnerID=40&md5=a17b8f7799c0761cf54dc6f325b4d31c id_number: 10.1109/BEIAC.2013.6560138 full_text_status: none publication: BEIAC 2013 - 2013 IEEE Business Engineering and Industrial Applications Colloquium place_of_pub: Langkawi pagerange: 311-315 refereed: TRUE isbn: 9781467359689 citation: Kurian, V.J. and Ng, C.Y. and Liew, M.S. (2013) A study on motion responses of classic spar platforms subjected to short crested waves. In: UNSPECIFIED.