Description: You can perform coupled structural-acoustic steady-state dynamic analysis following Lanczos eigenvalue extraction using the high-performance SIM architecture.

You can request residual mode calculation in coupled structural-acoustic Lanczos eigenvalue extraction analysis. In this case the residual vectors are computed only over the structural domain. Including residual modes improves the accuracy of the modal procedures.

In addition, the performance of subspace-based coupled structural-acoustic steady-state dynamic analysis based on coupled Lanczos modes is improved. In a particular application, where about 2,650 coupled modes were used, the analysis time was reduced 25 times—from 40 hours to 1 hour 35 minutes.