ARMDK Tester
The Automatic Work Station checks the serviceability of aero engine of SU-30 MKI aircraft by monitoring and recording various real time parameters related to engine and engine controller during aircraft ground run. The AWS is also used during scheduled adjustments, maintenance/repair services and other operations dealing with maintenance of engine without connecting any additional test instruments. However, additional sensors are installed during engine performance checks.
The AWS performs following functions during aircraft ground run
Measures and displays engine parameters in a dedicated GUI page - Measures and displays engine controller (KRD-99) parameter in dedicated GUI page
- Displays established and standard profile with respect to time in a GUI page in graphical format
- Generates warning signal based on measured parameters and the same is displayed in a separate page
- Measures engine vibration, AAGB & GTD vibration by installing additional vibration sensors (Part of ARM DK-30) on the aircraft
- Measures oil pressure & breather pressure by installing additional pressure sensors (Part of ARM DK-30) on the aircraft
- Simulates few signal commands
- Records the measured data at a regular intervals
- Performs analysis of the stored data
The AWS also facilitates to check the serviceability of additional sensors which are part of the ARM DK-30 system and also to calibrate the aircraft engine parameters.
Technical Specification
The following engine parameters are monitored, recorded and displayed:-
- Engine Speed N1, N2, N1corr, N2corr.
- Position of IGV, GV HPC, Jet Nozzle Diameter.
- Temperature T4, T4 corr.
- Engine Vibration in mm/sec.
- Breather Pressure (Kg/cm2), Oil Pressure (kg/cm2)
- Duty Cycle S1, S8.
- REHEAT, NO COOL caption.
- Start up parameters – Start light, 15% N2.
- Single commands: DECEL, VT Start, Failure IGV, ntc, FAIL- KRD.
- Timer - displays time from moment of start.
- Stop watch - With software controlled stop watch
The AWS generates various warnings based on monitored parameters and the same is displayed in a separate page with arrival and departure time. The AWS presents the established and standard modes in graphical format with respect to time. Also, the AWS is equipped to simulate P0, M, T4, N1, N2, T1 & BPZ signals on demand.