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Abstract:
Active shape and vibration control are means for obtaining optimal flow conditions around wings, ducts and channels under different conditions. This means that the structure can be adapted (deformed or damped) such that aerodynamic or vibro-acoustic behaviour is optimal for that particular situation. The fast developments in computer technology makes it possible that more complex analyses aerodynamics and vibro-acoustics included are applied in the design process. At NLR research is carried out on the integration of advanced analysis tools in design environments. In this paper the tools which are developed for the analyses of active shape and vibration control are presented. The backbone of the design environment is an optimisation algorithm that helps the designer to come up with optimal design of structures. In the case of active shape and vibration control the optimal design of controllers is a new aspect. This means that in addition to the optimisation of the locations of sensors and actuators the control parameters have to be optimised. In this paper a method is proposed to optimise locations and control parameters at once with the standard finite element representation of the equation of motion as a base.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Pages: |
9 |
| Report Date: |
23 APR 2000 |
| Contract Number: |
NRT-02805N |
| Report Number: |
A197193 |
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