Statistical energy methods for mid-frequency vibration transmission analysis

Sungbae Choi, Christophe Pierre, Matthew P. Castanier

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this work, we discuss statistical energy methods for predicting mid-frequency vibration transmission between two spring-coupled substructures with parameter uncertainties. We adopt a parameter-based approach, which allows us to relax certain assumptions associated with a classical Statistical Energy Analysis (SEA) approximation. We consider both a numerical method and an analytical method. The latter is called a Parameter-based Statistical Energy Method (PSEM). An example of two elastic bars coupled by a single spring or multiple springs is examined. The power transmitted from the excited substructure to the other substructure is calculated and compared for the various methods.

Original languageEnglish
JournalSAE Technical Papers
DOIs
StatePublished - 1997

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