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Accelerating Full Scale Fatigue Testing

William Bradshaw, Dr. Pavan Vaddadi, Dayton T. Brown Inc.

https://doi.org/10.4050/F-0079-2023-18166

Abstract:
This paper will discuss the use of Model Predictive Control (MPC) to increase the speed and accuracy of airframe fatigue testing. This will save time and cost while providing a very high fidelity test that will greatly reduce future fleet problems. Additionally accelerating fatigue testing allows for more realistic test load spectrum to be utilized, with reduced amounts of spectrum truncation and artificial load increases. A new load control system under development by Dayton T Brown, Inc. (DTB) utilizes Model Predictive Control (MPC) rather than Proportional Integral Derivative (PID) load control to compute test actuator loads. MPC utilizes a model of the test system, a Digital Twin, to determine the best path forward to reduce loading errors and increase test load application rate.


Accelerating Full Scale Fatigue Testing

  • Presented at Forum 79
  • 3 pages
  • SKU # : F-0079-2023-18166
  • Structures and Materials

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Accelerating Full Scale Fatigue Testing

Authors / Details:
William Bradshaw, Dr. Pavan Vaddadi, Dayton T. Brown Inc.