Multidisciplinary
Optimization (MDO)
Automated Optimization Capabilities Powered by iSIGHT
in the AGILE™ Engineering Design System
Concepts NREC offers several options for automated optimization capabilities in the AGILE™ Engineering Design System® for turbomachinery. Two levels of stress and vibration capabilities can be added to STRESSPREP™ to allow optimization of impeller mechanical properties such as stress and vibration. An additional optimization level has been added to the combination of CCAD® and Pushbutton CFD® to allow optimization of CFD predicted fluid dynamic performance. When combined, these aero/hydraulic and mechanical optimization options allow true Multidisciplinary Optimization (MDO) capabilities in the AGILE™ Engineering Design System. These optimization packages are built upon iSIGHT technology from Engineous Software, Inc.
Optimize Impeller Shape
The new “S” optimization packages are optional add-ons to STRESSPREP
that allow the designer to optimize an impeller shape using stress
levels, displacements, temperatures, and vibration frequencies
as design targets or constraints. Design variables that the optimizer
can work with are any of the geometrical parameters that can be
adjusted within the STRESSPREP user interface such as backface
shape, bore shape, and blade fillets. In addition, if CCAD is
part of the design system, the blade and flow path shapes controlled
by CCAD can be optimized together with the impeller geometry controlled
by STRESSPREP.
On the fluid dynamic side our existing iSIGHT EASy!™ Level 1 (E1) optional add-on to CCAD package is complimented with one additional level. The Level 2 capability requires both CCAD and Pushbutton CFD and allows optimization based on CFD predicted results such as overall efficiency and pressure rise.
True MDO System
When any of the “E” packages is combined with an “S” package,
a true MDO system is created. The table on the reverse side summarizes
all available options. The MDO packages offered by Concepts NREC
represent the world’s first out-of-the-box MDO system for turbomachinery
design. All of the complicated stitching together of programs
and optimization algorithms has been seamlessly packaged by Concepts
NREC and Engineous Software. However, creating an effective MDO
system is not simply a matter of hooking together the appropriate
codes in an optimization loop. To unleash the real power of MDO,
an organization’s design rules and practices must be captured
and translated into optimization goals and constraints. Concepts
NREC has been working with customers in the area of optimization
since 1998 and will be happy to assist any organization to create
effective MDO procedures.
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