Errors Associated with Transfer Path Analysis when Rotations are not Measured

2007-01-2179

05/15/2007

Event
SAE 2007 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
Previously we had found significant errors in the interfacial force results for a source-path-receiver system where only translational motions were measured. This paper examines the sources of those errors by using computational finite and boundary element models. The example case consists of a source structure (with few modes), a receiver (with many modes) and three steel rod paths. We first formulate indirect, yet exact, methods for estimating interfacial forces, by assuming that six-dimensional motions at any location are available though we focus on only the driving points. One- and three-dimensional sub-sets of the proposed formulation are compared with the six-dimensional theory in terms of interfacial force and partial sound pressure spectra.
Meta TagsDetails
DOI
https://doi.org/10.4271/2007-01-2179
Pages
11
Citation
Inoue, A., and Singh, R., "Errors Associated with Transfer Path Analysis when Rotations are not Measured," SAE Technical Paper 2007-01-2179, 2007, https://doi.org/10.4271/2007-01-2179.
Additional Details
Publisher
Published
May 15, 2007
Product Code
2007-01-2179
Content Type
Technical Paper
Language
English