Three parallel computation methods for structural vibration analysis
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Storaasli, Olaf↗
Engineering topics
Mahajan, Umesh
Publications and source records attributed to Mahajan, Umesh.
Parallel algorithms and archtectures for computational structural mechanics
The determination of the fundamental (lowest) natural vibration frequencies and associated mode shapes is a key step used to uncover and correct potential failures or problem areas in most complex structures. However, the computation time taken by finite element codes to evaluate these natural frequencies is significant, often the most computationally intensive part of structural analysis calculations. There is continuing need to reduce this computation time. This study addresses this need by developing methods for parallel computation.
Patrick, Merrell↗
Three parallel computation methods for structural vibration analysis
The Lanczos (1950), multisectioning, and subspace iteration sequential methods for vibration analysis presently used as bases for three parallel algorithms are noted, in the aftermath of three example problems, to maintain reasonable accuracy in the computation of vibration frequencies. Significant computation time reductions are obtained as the number of processors increases. An analysis is made of the performance of each method, in order to characterize relative strengths and weaknesses as well as to identify those parameters that most strongly affect computation efficiency.
Storaasli, Olaf↗