293. Reduced-Order Non-Linear Dynamic System Models
Team
| Name | Role | Primary |
| Dongheon Ryu | Principal Investigator | ● |
| Andrei Zagrai | Principal Investigator | |
| Nick Demidovich | Tech Monitor | ● |
| Danielle Monette | Fiscal Admin | ● |
| Lisa Oty | Fiscal Admin | ● |
| Gayle Bailey | Contract Admin | ● |
Project Description
The structural integrity of commercial launch platforms must be assessed for each mission, i.e. safety certification or recertification. A significant amount of structural response data must be collected in order to state confidence bounds on the computed safety margins. Experimental data will very likely need to be supplemented with data generated by numerical simulations of the structural response of the launch platforms to the anticipated flight environments. Efficient, cost-effective methods for generating non-linear structural models of CST platforms will result from this effort.
Project Outcomes
Modal extraction codes have been validated by physical testing of beam structure.
Summary of Output
– Solicit Industrial Working Group feedback to guide implementation of system computational assembly methods.
– Generate non-proprietary code to extract relevant structural features from experimental test data i.e. modal extraction software using rational fractional polynominals (RFP)
– Provide Matlab™ scripts for combining finite element modelled components with experimentally defined (modal) components in structural assemblies.
– Provide help to commercial companies desiring to use modal extraction an assembly codes.
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