Extensions of structural optimization software to enable multidisciplinary applications

Applications of structural optimization are often multidisciplinary in nature and require nontraditional problem formulations.In the optimization system that has been developed, flexibility in terms of system design and problem formulation have been important aspects. A mathematical programming approach has been adopted where function values and sensitivity information is required from each discipline involved. To be able to deal with the demands of ongoing projects, a number of extensions have been implemented in recent years.The system is today used within the Saab and ABB companies. Four recent applications are presented to illustrate how the extended capabilities have been used.

1.	A train structure, optimized with respect to strength and dynamic properties.
2.	A combined shape and thickness optimization of a force measurement sensor.
3.	The shape optimization of an electric motor component with respect to both structural and magnetic properties.
4.	Finally a composite wing study including structural and aeroelastic considerations.