Two-dimensional mooring dynamics for wave energy converters

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TypeTechnical Report
Series titleTechnical Report
Physical description35 p.
Subjectmooring; wave energy converter; lumped mass; Kane’s method; waves
AbstractMooring analysis algorithms developed at the NRC have been modified to evaluate the performance of mooring designs for wave energy devices through numerical simulations. The equations of the coupled two-dimensional motion of a generic wave energy device and multiple mooring lines are formulated using Kane’s formalism. The lines are modelled using lumped masses and tension-only springs including structural damping. Surface waves are described by Stokes’ second order wave theory. The hydrodynamic loads are applied via a Morison’s equation approach using the instantaneous relative velocities and accelerations between the fluid field and the bodies (floating body and lines). The mathematical model and associated algorithm are validated by comparison with special cases of an elastic catenary mooring line.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NPARC number21257782
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Record identifier85f817da-18a2-4562-8206-f7b159492229
Record created2013-02-28
Record modified2016-10-03
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