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Aeroacoustic sources of motorcycle helmet noise
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10.1121/1.3621097
/content/asa/journal/jasa/130/3/10.1121/1.3621097
http://aip.metastore.ingenta.com/content/asa/journal/jasa/130/3/10.1121/1.3621097

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Wind tunnel facility.

Image of FIG. 2.
FIG. 2.

Grid 1 hot wire measurement locations.

Image of FIG. 3.
FIG. 3.

Grid 2 hot wire measurement locations.

Image of FIG. 4.
FIG. 4.

System model for partial coherence processing.

Image of FIG. 5.
FIG. 5.

Mean velocity and turbulence intensity on grid 1.

Image of FIG. 6.
FIG. 6.

(Color online) Mean velocity and turbulence intensity .

Image of FIG. 7.
FIG. 7.

Wake spectral content 0–50 Hz.

Image of FIG. 8.
FIG. 8.

Wake spectral content 100–200 Hz.

Image of FIG. 9.
FIG. 9.

Wake spectral content 500–1000 Hz.

Image of FIG. 10.
FIG. 10.

Correlation measurement locations. Diamonds, boundary layer measurement; dots, wake measurement.

Image of FIG. 11.
FIG. 11.

Partial coherence versus speed.

Image of FIG. 12.
FIG. 12.

Partial coherence versus head angle, .

Tables

Generic image for table
TABLE I.

Mannequin head dimensions.

Generic image for table
TABLE II.

Conditioning sequence for a three-input system.

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/content/asa/journal/jasa/130/3/10.1121/1.3621097
2011-09-02
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Aeroacoustic sources of motorcycle helmet noise
http://aip.metastore.ingenta.com/content/asa/journal/jasa/130/3/10.1121/1.3621097
10.1121/1.3621097
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