Definition of P.S.D.-design loads for nonlinear aircraft

The Power Spectral Density (P.S.D.)-method is used to define design loads due to atmospheric turbulence. The design loads are calculated using linear transfer functions. These methods can not be used if the equations describing the behaviour of the aircraft are nonlinear. One method to define design loads for a nonlinear aircraft is by means of...

NEXT: An expert system development tool to support engineering design

In the engineering process, many design decisions are made in the initial stage. These decisions can have far-reaching consequences. Especially in a multi-disciplinary design process, it is desirable to be able to gather the diverse alternatives for aspects of a design and to store them in some formal representation in order to reason about them...