Noise Source Identification in Thermal Systems Using Transient Spectral Analysis Purdue Univ

Format:

Conference/Event

Author/Creator:

Temple, Keith A., author.

Conference Name:

SAE Noise and Vibration Conference and Exposition (1997-05-20 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

A noise source identification technique for the analysis of thermal systems is presented. The proposed method uses transient spectral sound data to assist in determining the source of sound radiation by tracking the variation of the frequency of tones during transient thermal loading (id est, thermal system warm-up). By considering the temperature dependence of the modulus of elasticity (Young's modulus) it can be shown that structure related tones will decrease in frequency during warm-up. Tones due to propagation of sound in many fluids (id est, gases and water) will increase in frequency during warm-up due to the temperature dependence of the speed of sound. The analysis method is demonstrated by identifying the source of several noise tones for a pulse combustion furnace

Notes:

Vendor supplied data

Publisher Number:

972036

Access Restriction:

Restricted for use by site license