Three different design strategies, and their results when applied to a 2-D space structure, are presented. The first strategy (passive optimisation) is the redesign of the structure geometry in order to inherently reduce the vibration transmission. Genetic algorithms (GAs) were used for this, and the basic operation of the GA used for this optimisation problem will also be presented. The second strategy (active optimisation) is the application of feedforward Active Vibration Control (AVC) techniques. In this case the best actuator positions on the structure are sought in order to produce the best possible attenuation. The third strategy is the combination of both passive and active methods.

If time allows the issue of the robustness of the optimal design solutions to small changes in geometry will also be introduced.

There is currently in progress an industry-funded project in the CEDC to design a 3-D space structure which has optimised dynamic performance, using the design strategies detailed above. This project also will carry the design to prototype operational models.