Before revision: In this paper , we focus on the efficient techniques to estimate the H_2 optimal Structure-Preserving Model Order Reduction (SPMOR) of the second-order systems using the Iterative Rational Krylov Algorithm (IRKA).
After revision: In this paper , we focus on the efficient techniques to estimate the H_2 optimal Structure-Preserving Model Order Reduction (SPMOR) of the second-order systems via interpolatory projection-based method Iterative Rational Krylov Algorithm (IRKA).