Structural Integrity Recording System for helicopters
Abstract
The Structural Integrity Recording System (SIRS) will permit determination of the usage spectrum of an individual helicopter for calculation of the fatigue lives of helicopter dynamic components. The SIRS includes a microprocessor-based recorder, a portable flight-line retrieval unit (RU), and a fatigue damage assessment system (FDAS) software package. The recorder monitors pitot pressure, static pressure, outside air temperature, transmission lift link strain, aircraft pitch angle, roll angle, engine torque pressure, main rotor rotational speed, and vertical acceleration at CG. Qualification testing of the system is described.
- Publication:
-
In: American Helicopter Society
- Pub Date:
- 1978
- Bibcode:
- 1978ahcs.proc.....S
- Keywords:
-
- Aircraft Construction Materials;
- Automatic Test Equipment;
- Data Recorders;
- Fatigue Life;
- Helicopter Design;
- Microprocessors;
- Computer Techniques;
- Cumulative Damage;
- Pressure Measurement;
- Rotor Speed;
- Temperature Measurement;
- Velocity Measurement;
- Instrumentation and Photography