Future LAMpoldshausen Exploitation FLAME
With the FLAME project, DLR is developing the foundations for the comprehensive modernization and digitalization of engine test benches as part of an ESA programme initiated by the German Space Agency at DLR.
The potential applications of machine learning algorithms, a sub-area of AI, are particularly promising. In simple terms, machine learning means automated learning based on sample data. Thanks to decades of data collection through the operation of test benches, the DLR site in Lampoldshausen has an impressive database and is therefore ideally suited for the use of AI. These measurements are supplemented by data from simulations that are generated using computer clusters, among other things.
AI methods not only contribute to the analysis of the test data, but can also be used to create optimal test sequences and to detect deviating sensor and system behavior in real time. Machine learning makes it possible to create an additional "employee" in the control room who supports the DLR team before and during the tests. This significantly increases the efficiency and safety of the tests.
The use of AI algorithms during the tests enables a more efficient realization of different operating points of an engine. The system can react intelligently to changes in the propulsion system and thus also minimizes the risk of damage to the engine. By integrating fatigue models for engine components into the control system, the service life of the engine can also be extended. Significant improvements can be expected in terms of safe operation, reusability and thrust control of the engines.
The AI methods used in engine development will also be applied in hydrogen research on site. For example, the AI-supported optimization of tests in terms of information gain can help to make test campaigns for new technologies related to green hydrogen more efficient and sustainable.