TIGER (Total Integrated Engine Revitalization) Health Management (THM):
Our team has been performing database development on the TIGER program, adding features that will improve visibility into component health and bolster engine management practices. TIGER Health Management (THM) is a standard Java/ASP application type located on the secure Customer SQL server. It allows customers with an account to access through an htpps website and is a central location for Engine Memory Unit (EMU) data files that are secured behind the Customer firewall. THM allows for easy review of Engine Memory Unit (EMU) data to monitor engine health and allows users to view metrics and trends across the entire fleet. EMU is only a storage device mounted on an engine until it returns to the depot. Some of the updates/enhancements we have made include:
- Development of new function to enable users to reset passwords
- Removal of inactive users from the existing users list
- Addition of a multi-platform functionality
- Modifications to the GUI to make it more user friendly and to allow manual modification of the ESN to modify and track the build number
- Modifications to the Engine Component Life Details section
- Enabling the export of rain flow data to Excel
- Creation of a new function to hide/display Fleet Health Summary
- Ability to track engines by Build Number
- Ability to update fleet health trending
Space Technology (ST) 8 System Middleware:
As part of NASA’s New Millennium Program and Customer’s Space Technology 8 Dependable Multiprocessor Technology initiative, our team designed and developed middleware to mitigate the effects of ionizing (electromagnetic and particle) radiation on commercial off-the-shelf (COTS) hardware and software installed on spacecraft. Ionized radiation can cause problems ranging from processor errors (bit flips) to board failures in these onboard systems. Implemented through calls by the science-application program being processed, the ST-8 Middleware detects faults in real time and, in conjunction with the application, institutes recovery procedures ranging from system rollback and application restart to processor elimination and device failover switching.
We provided the initial design and development of the ST-8 Middleware and added enhancements to include coordinated check pointing as well as full support for Message Passing Interface version 2 (MPI-2).
The objective for the ST-8 experiment was to empirically validate the ability of a COTS- based processing system to execute a space-science application at 300 million operations per second per Watt of power (MOPS/W) in a space radiation environment. These new, highly capable computers are expected to support a new generation of intelligent spacecraft and space robots for future NASA science and exploration missions.