CRAY

Improving aerospace engine simulation

Cray and LSTC speed up a critical simulation involving over 80 million elements

Among the critical simulations aerospace manufacturers must run is fan blade off, which simulates the failure of a fan or compressor blade in a jet engine at high rotating speeds. Building a prototype engine for the required certification test — which destroys the prototype — runs into millions of dollars, so simulation is a fundamental cost- and time-saving step in the design process.

It’s also technically challenging and computationally intensive, typically involving tens of millions of elements and requiring more than a month to complete. But a team from Cray, LSTC and Rolls-Royce Corp. successfully ran a fan blade off simulation involving more than 80 million elements in 21 hours.

This free white paper details the use of LS-DYNA, a finite element program developed by LSTC, on a Cray® XC™ supercomputer to simulate fan blade off containment.

You’ll learn about:


LS-DYNA code optimization for fan blade off simulation on the Cray XC40 system


Performance comparison of fan blade off simulation in LS-DYNA R8.0.0 and R7.1.2


MPI communication patterns including communication time and synchronization time

In a real-life simulation, an explosive charge is fired to release the turbine blade, leaving very little visible detail in the engine. LS-DYNA’s simulation visualization allows engineers to strip away part of the structure to see those details, and alter their design if necessary. Download this free white paper today to learn more about this Cray-LSTC solution for high-stakes simulation.