TY  - CONF
A1  - Kurian, V.J.
A1  - Ng, C.Y.
A1  - Liew, M.S.
N2  - In the real sea condition, only multi-directional waves or short crested waves are found. Short crested wave isdefined as thelinear summation of various long crested waves propagated tovarious angles, where the magnitude and direction generated are randomly varied. In this study, the dynamic responses of classic spar platform subjected to long crested and short crested waves are investigated numerically and compared. Two numerical simulations are developed by incorporating Diffraction theory to obtain the wave forces for long crested waves and short crested waves. The classic spar platform is assumed to be rigid with three degrees of freedom surge, heave and pitch, restrained by four mooring lines. For every time step, the mass, damping and stiffness matrices are evaluated. The equations of motion are formulated for the platform dynamic equilibrium and are solved by using Newmark Beta method in time domain. The results in terms of Response Amplitude Operator (RAO) for surge, heave and pitch motionsare obtained and compared. © 2012 IEEE.
Y1  - 2012///
N1  - cited By 6; Conference of 2012 IEEE Colloquium on Humanities, Science and Engineering Research, CHUSER 2012 ; Conference Date: 3 December 2012 Through 4 December 2012; Conference Code:96849
EP  - 728
SP  - 724
TI  - Numerical investigation on dynamic responses of classic spar platforms: Long crested waves vs. short crested waves
SN  - 9781467346153
CY  - Kota Kinabalu, Sabah
ID  - scholars2446
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877661718&doi=10.1109%2fCHUSER.2012.6504407&partnerID=40&md5=5720ac7db5cdafc77862bf0b3534471b
KW  - Classic spar; Crested waves; Diffraction theory; Numerical investigations; Response amplitude operator; Short-crested waves; Stiffness matrices; Three degrees of freedom
KW  -  Diffraction; Dynamic response; Equations of motion; Spar platforms; Stiffness matrix; Time domain analysis
KW  -  Engineering research
AV  - none
ER  -