FRAME159
FRAME159 software equipment (shortly FRAME) is designed to process data records evaluated and recorded by AMOS airborne system in order to monitor the spending of the L159's airframe service time in the long term. AMOS airborne system is installed on the aircraft deck where it scans, evaluates, and records parameters needed to evaluate the spending of the aircraft's service lifetime. The input parameters used by FRAME program for computation are:
- overload NZ in the aircraft's vertical axes
- strain in the airframe monitored by strain gauges located on the flange of the main wing spar (S1, S2), in fuselage wing spar (S3) and on the landing gear (S4)
- time of begining and end of recording and time of take-off and landing
The PANDA software set which part is also FRAME program is designed to monitor and evaluate data recorded by AMOS system. The following hardware support of ground workstation (shortly GW) is necessary for correct functioning:
- notebook - for calibration of monitored parameters, testing AMOS and reading data (it is possible to use also PMU for reading data)
- PMU -- unit that enables reading data from flight data recorders and transfer it to ground workstation
- ground workstation (computer PC-AT) - for evaluation of records (it is possible to substitute it with a notebook with appropriate parameters)
Using a notebook or a PMU unit, the registered data are transfered from the flight deck to the data field on a ground workstation HD. The data are evaluated at the ground workstation by the FRAME program which requires the ground workstation computation system in the configuration corresponding to the requirements of the PANDA system.
The protection of FRAME program is solved by hardware key which is connected to the parallel port of the PC and the program modules are cheching for key presence during their operation. This way, the protection of whole system against unauthorized use and copy is ensured. Further protection against misuse is solved globally through the MANAGER module by a operator list and their access rights to the modules and their functions.
Program FRAME enables these basic functions:
- to compute the damage and spending of the aircraft's airframe service lifetime from the overload values in the vertical axes NZ
- to compute damage and spending of the airframe service lifetime from the strain values S1, S2 (Wing-L, Wing-R) measured in the wing spar of the main flange (signals from strain gauges)
- to compute damage and spending of the airframe service lifetime from the strain values S3 (Fuselage-L) measured in the flange of the fuselage wing spar (signal from a strain gauge)
- to compute statistics of landing gear load from measured values by strain gauge S4 (Landing gear) located on the main landing gear
- to monitor number of flight hours
- to create, process, sort, and maintain wear-out database
- to enter the database query manually
- to archive and recover the database
- to display and print the database outputs
- to protect selected functions from unauthorized use