Abstract: A Wave Energy Converter (WEC) (70) to be applied in water vehicles (100, 200) and floating bodies (300) is described. The WEC (70) involves a mass-spring-damper system comprising at least one oscillating mass (12), springs (14) at the rate of at least two springs (14) for each oscillating mass (12), said springs (14) being arranged radially to said oscillating mass (12), and at least two power take-off (PTO) devices (13) having different degrees of freedom (DOF). WEC (70) is applied in the motoring and concomitant or alternative energy generation in water vehicles (100, 200) and floating bodies (300). Energy generation is consequent to external disturbances including waves, currents and conventional motoring which results in oscillations in the system containing said WEC (70).