Description
Low-cycle fatigue phenomena on real (unscaled) engine components are investigated at the thermal cycling test rig of the Institute of Thermal Fluid Machinery. The test rig enables their cyclic loading under realistic thermomechanical boundary conditions(research focus on low-cycle fatigue phenomena on engine components).
Figure 1: Current configuration of the thermal cycling test facility for the investigation of high-pressure turbine guide vanes
Opportunities
- Assessment center for turbine components
- Thermocyclic investigation of unscaled engine components under real temperature boundary conditions of the latest technology (TRL4)
- Natural gas-fired, stagnation point-stabilized combustion chamber
- No turbulence
- Homogeneous temperature distribution
- No fuel-induced instabilities
- Max. Air mass flow: 1.7 kg/s at a pressure of up to 1 MPa
- Max. Temperature of preheated air: 1123 K
- Max. Combustion gas temperature: 2000 K
- Five individually mass flow and temperature controllable cooling air lines
- Fully automated thermal cycling
Measurement technology & control
- Measurement of static pressures on complex, three-dimensionally contoured geometries to maintain Mach's similarity
- Measurement of temperature profiles using a traversing probe
- Measurement of surface temperatures using thermal paints
- Recording mass flows using orifice plates and impeller meters
- Optical inspections using video endoscopy
- Identification of damage mechanisms such as crack formation and propagation using computer tomography and X-ray images
- Data acquisition and test stand control using NI LabVIEW and Beckhoff PLC