Lab measurements:
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Sound absorption measurements
„Alpha-cabin“ |
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Air-borne sound insulation measurements „Petite-cabin“ |
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Air-borne sound insulation
according to „DIN“ (external test) |
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Bending vibration tests
according to DIN 53440 „Method Oberst“ |
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Loss factor measurements
vibrometer method of foam |
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Laser-scanning-vibrometer
body structure analysis |
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Vehicle tests:
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Road measurements
sound level (overall-, octave-, third octave- and order level) above rpm; FFT and third octave spectrum above rpm (3-D-digaram) articulation index above |
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Stationary measurements (shop)
excitations:
- engine
- loudspeaker
analysis as in road measurements:
- road spray
- gravel impact
additional intensity measurements |
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2-axle-roller dynamometer
front wheel final- and/or rear wheel final drive analysis as in road measurements, additional intensity measurments |
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Artificial head measurements |
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Building acoustics measurements (external) |
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Calculation and simulation
(for example AutoSEA) with Magna Steyr |
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