Presented to: By: Date: Federal Aviation Administration NAPV Upgrades Airport Pavement Working Group Ryan Rutter April 25, 2012.

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Presentation transcript:

Presented to: By: Date: Federal Aviation Administration NAPV Upgrades Airport Pavement Working Group Ryan Rutter April 25, 2012

2 Federal Aviation Administration Airport Pavement Working Group April 25, 2012 NAPTV Upgrades: Installation of hydraulic oil heaters Installation of redundant fiber optic communications cable and supporting festoon system Upgrade hydraulic load controllers and servo valves Regenerative Braking Study

3 Federal Aviation Administration Airport Pavement Working Group April 25, 2012 NAPTV Upgrades – Hydraulic Oil Heater Installation: Installed to optimize hydraulic load performance Gives best response for test results Reduce system start-up time

4 Federal Aviation Administration Airport Pavement Working Group April 25, 2012 NAPTV Upgrades – Fiber Optic Cable and Festoon System: Installed to provide redundant communications between carriages and control cab Last cable break disabled NAPTV and delayed testing for approximately 2 weeks.

5 Federal Aviation Administration Airport Pavement Working Group April 25, 2012 NAPTV Upgrades – Hydraulic Load Controllers and Servo Valves : Upgrade existing Programmable Logic Controllers (PLCs) with Delta Motion Controllers Currently running a Delta Motion Controller on Carriage 2, Module 5 along with a new MOOG digital servo valve. Uses a laser range finder to capture the test pavement elevations every 6 inches for preemptive input to the Delta Controller. Result is much better control of the hydraulic load over changing test pavement surface. Article published in Control Engineering Magazine in December 2011 Remaining load modules scheduled for upgrade towards the end of the summer 2012.

6 Federal Aviation Administration Airport Pavement Working Group April 25, 2012 NAPTV Upgrades – Regenerative Braking Study Investigation into the feasibility of using regenerative braking on the NAPTV. Also addresses the use of dynamic braking which is essentially replacing use of the mechanical brakes by putting the drive motors in reverse. Mechanical brake use can be greatly reduced especially during automatic vehicle operation at reduced speeds. ONExia provided feasibility study which gave a plan on replacement of the current 15 year old variable frequency drives (VFD) with new VFD’s, implementation costs, and start up costs.