Minimizing sensitivity of bladed disks to mistuning

High cycle fatigue due to vibration continues to be a leading cause of blade failure in turbomachinery. Designing for the alleviation of high cycle fatigue is one of the most complex problems facing engineers. The complexity of the problem has given rise to many design propositions and many techniques for evaluating their merit. In this work, the Finite Element Method is used to analyze minor hub design modifications intended to minimize the propensity for mode localization in turbomachinery blades, thus alleviating high cycle fatigue.