Resonant Plate Substructuring
How can we predict the shock response of aerospace components without running full physical tests each time?
Aerospace structures experience various shock events during flight such as launch ignition,
stage separation and impacts. These shock events expose components inside the rocket to
large accelerations and stresses which in turn can damage electronics and other components.
To test parts for flight, shocks are often simulated using resonant plate tests. Accurately modeling the test plays a key role in speeding up
production time by allowing the results of the test to be predicted without incurring the cost
of running the test on every new iteration of a component. To speed up testing and analysis, modal based substructuring is being investigated as a potential tool. Substructuring predicts system-wide vibrational response by adding
the independent responses of several substructures. Our research uses FEA modeling and physical testing to investigate the use of substructuring techniques for resonant plate testing.
stage separation and impacts. These shock events expose components inside the rocket to
large accelerations and stresses which in turn can damage electronics and other components.
To test parts for flight, shocks are often simulated using resonant plate tests. Accurately modeling the test plays a key role in speeding up
production time by allowing the results of the test to be predicted without incurring the cost
of running the test on every new iteration of a component. To speed up testing and analysis, modal based substructuring is being investigated as a potential tool. Substructuring predicts system-wide vibrational response by adding
the independent responses of several substructures. Our research uses FEA modeling and physical testing to investigate the use of substructuring techniques for resonant plate testing.