A design and optimization tool for screw type machines

A tool for the interactive design of screw type machines are presented that also comprises an optimization module. Beside the usual features of computer aided design tools, it has unique support for screw type machine design, as for example automated calculation of the female rotor for an arbitrary given male rotor. The optimization relies on an evolution strategy with a new mutation operator, called directed mutation. It was presented in short and some results using this optimization module are given. In the final section, conclusions are provided.