Active Motion-Compensation Technology for Roll-On/Roll-Off Cargo Vessel Discharge to Floating Platforms Navy SBIR FY2011.2 Sol No.: Navy SBIR FY2011.2 Topic No.: N112-137 Topic Title: Active Motion-Compensation Technology for Roll-On/Roll-Off Cargo Vessel Discharge to Floating Platforms Proposal No.: N112-137-1166 Firm: Navatek Ltd Suite 1110 841 Bishop Street Honolulu, Hawaii 96813 Contact: Todd Peltzer Phone: (808) 531-7001 Web Site: www.navatekltd.com Abstract: We propose to develop an active motion-compensation platform for roll-on/roll-off (RO/RO) cargo vessel discharge operations onto a floating platform that reliably and safely enables the military to supply needed cargo for military operations and humanitarian assistance in conditions up to sea state 5. The proposed platform will provide a more cost-effective means of enhancing cargo throughput than other solutions. This technology will provide the military with an interface system to a majority of existing RO/RO vessel ramps with no modification. We will leverage previous experience with multi-body seakeeping analysis tools, nonlinear mechanical system simulation tools, and ongoing efforts directly related to cargo transfer systems. A top-level concept will be developed that describes principal components, subsystems, and system operation. Principal sub-systems of the motion-compensation platform, the cargo vessel, and the discharge facility will be modeled, and coupled hydro/mechanical simulations will be performed over a range of sea states. A process for analyzing cargo transfer loads will be assessed. We will develop a sensor system and an actuation system that reacts to sensor output; a concept for transport, installation, and recovery; and a connection system that limits the motions between the platform and discharge facility. Benefits: An active motion-compensation platform for roll-on/roll-off (RO/RO) cargo vessel discharge operations onto a floating platform provides a reliable, safe, and cost-effective means of delivering high cargo throughput for military operations and humanitarian assistance/disaster relief scenarios in much higher sea states than present systems offer. Commercial applications include at-sea cargo discharge to barges, allowing shippers to off-load cargo at-sea in areas where they cannot get into port or to use larger vessels without the vessel restrictions associated with some ports. Return