“…Firstly, heave and pitch motion for the case of head seas (angle of incidence μ=180º) have been studied (Aranda et al, 2004a), then actuators are modeled and different controllers are designed (Aranda et al, 2002a(Aranda et al, , 2002b(Aranda et al, , 2005Cruz et a., 2004) in order to achieve heave and pitch damping and with successful results. Secondly, in the same way, the rolling response has been modeled, with the design of actuators and controllers for the case of lateral waves (μ=90º) (Aranda et al, 2003(Aranda et al, , 2004b.…”