On simultaneous optimisation of smart structures - Part I: Theory

The emerging space missions not only support the idea of smart structures but also call for fast development and application of advanced structures having highly distributed sensors (analogous to a nervous system) and actuators (muscle-like materials) to yield structural functionality and distributed control function. A major concern of the development of the smart system is how to make the multidisciplinary system work efficiently and optimally. This problem is considered in the present paper. The optimal control, sensitivity analysis and integrated optimisation of such a multidisciplinary system is presented. In particular the structural shape and topology are used as design variables, as augmenting the traditional optimal design concept for smart structures and leading to a relatively new field with a high potential for innovation. Discussion of the major problem solving methodologies is also presented to address the truly simultaneous optimisation of smart structures.