Abstract
Path analysis approaches rely on measured transfer functions, and measured sources or responses. For vibratory path analysis, the focus is commonly on determining forces that are hard to measure directly. There are three commonly applied strategies: 1) blocked force analysis, 2) pseudo force, and 3) classical transfer path analysis. These three strategies will be surveyed, and then the usefulness of the blocked force approach will be illustrated on two practical examples. Blocked forces are determined using correlated or uncorrelated assumptions for low or high frequencies, respectively. Suggested guidelines for selecting the number of blocked forces are detailed and demonstrated.
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