BAE Systems

BAE Systems is an international company engaged in the development, delivery and support

of advanced defence and aerospace systems in the air, on land, at sea and in space. The
company designs, manufactures and supports military aircraft, surface ships, submarines,
radar, avionics, communications, electronics and guided weapons systems.

TEAM Engineering supplies and supports Siemens PLM analysis technology in BAE to assist in their innovative development work.

One of the greatest challenges in the analysis of complex assemblies is the trade-off between
model fidelity and solution time. The modularity and efficiency of the solution allowed design
issues to be identified sufficiently early to implement improvements in a cost effective manner,
and helped BAE SYSTEMS deliver the first unit one week ahead of schedule.

Detailed finite element models of each of the parts were created in NX I-deas® MasterFEM
software and assembled into a detailed system model. ‘Superelement’ models of each of the
subassemblies were created and exported to Nastran for modal analysis.

A combination of Nastran NX-Ideas Response Analysis and the NX I-deas Advanced Durability module greatly reduces the analysis time. By using a superelement approach and powerful pre- and post-processing tools, it was possible to exceed all of BAE SYSTEMS’ technical and schedule requirements.

The final design was modeled and verified for more than 20 distinct load cases in less than eight weeks.