Signature Projects

USS San Antonio-URAMS

The US Navy requested R&P to provide a cost proposal for installing an Uninterruptible Power Supply (UPS) monitoring system.  Based on previous experience, the client had estimated the system to cost approximately one million dollars.

R&P, while investigating the design, realized that the current design did not, and could not, provide the desired information for the status and alarming of the ships UPS(s).  R&P has since developed a simple monitoring system - specifically designed - to manage the most important data coming in from the UPS for a fraction of the original estimated million dollars.

The information that is provided by the URAMS (UPS Remote Alarm Monitoring System) LCD touch panels will help avoid and prevent casualty scenarios with respect to the equipment that it is servicing.  The data on the LCD touch panels contains all relevant information on the UPS, and its pivotal components, such as the main source of power, the inverter, battery charger and the batteries themselves.  URAMS will aid the sailors in properly maintaining the batteries and UPS equipment to elongate its life cycle and service time. In case of a casualty, the unit will be able to diagnose any equipment that has been lost or is offline.

This system is based on control hardware, network topology, and overall system architecture that maintains the style, and format, of other control systems currently installed on US Navy ships.

All of the URAMS hardware has been qualified for Grade A shock & vibration requirements. This system is considerably cheaper than other alternatives, and can be easily adapted to control/monitoring application systems onboard US Navy ships. 

Patent Pending #61252778

 

Auxiliary Propulsion Systems

USS Makin Island (LHD 8) is the eighth ship of the USS Wasp (LHD 1) class.

The Auxiliary Propulsion System (APS), as developed for LHD 8, is an innovative-hybrid-economical propulsion system that utilizes both the General Electric LM2500+ gas turbine for main ship propulsion duty, and an electric propulsion system.

After delivery of the LHD 8, it was determined that further tuning of the APS was necessary to make the Plant & APS operate more efficiently and meet the intended full-power criteria, as mandated by the LHD 8 Ship Specifications.

At the request of the Navy, R&P created a Test Plan, and formed a Team that included some of the industries most respected Subject Matter Expert(s), to ensure that all system requirements were met.

Here is a summary of the Test Plan and the results:

APS tuning was performed between November and December of 2009. Such were the improvements to the system stability; several Crash Reversals could now be performed successfully with no casualties.  The APS operated in up to a Sea State 2, in both Speed and Torque modes, with no detrimental effect on the Electric Plant.  At full-speed the average SSDG fluctuations were 90 kW in Speed mode and 120 kW in Torque mode, with individual SSDG frequency oscillations of less than 0.5% and voltage oscillations of less than 0.5%.

Ship speed surpassed all expectations:

o 13.2 knots being the best obtained with only 3 SSDGs
o 10.1 knots obtained with only 2 SSDGs

In summary, R&P exceeded the challenge in a smooth and efficient manner.  The Test Plan was completed successfully, and all APS Test Team goals were met and delivered ahead of schedule.

Announcing systems

R&P Technologies offers support and system upgrades for announcing systems on the LPD-17 Class ships.  These system upgrades include Cut-Out Test Panels, Announcing System Function Transfer Switches, as well as upgrading the Announcing System Equipment Cabinets themselves.  The Cut-Out Test Panels separate each announcing system group into its respective strings for testing and isolation purposes in the event that repair to a speaker string is necessary.  The IC switchboards on the LPD-17 class ships do not provide speaker string isolation that IC switchboards on other ship classes have, and the Cut-Out Test Panels rectify this design issue.  The Announcing System Function Transfer Switch allows for the functionality of predetermined Microphone Control Stations, alarms, and speaker loads to be routed from an announcing system node that is in an inoperable condition to the node that is functioning.  This allows the ship to maintain command communication during a casualty situation.


Announcing System Equipment Cabinet upgrades include both engineering and construction method improvements.  In-house engineering improvements to the construction of these cabinets include the design and implementation of brackets for commercial connectors to prevent the unintentional disconnection of equipment and design solutions to adapt COTS equipment to the demanding shipboard environment. Construction method improvements include such things as proper wire management and cable identification, as well as properly integrating COTS equipment, especially with regards to connectivity.  All of these significant engineering improvements to the equipment cabinets not only have a major impact on the durability and reliability of the announcing system, they are implemented at a substantial savings to the United States Navy.

 

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