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Noise and vibration measurements in a Viking military vehicle
- Source :
- Defence Technology, Vol 17, Iss 6, Pp 1976-1987 (2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Noise and whole-body vibration measurements were made in a Viking military vehicle to determine the variation that should be expected during repeat measures, the effect of speed (up to 60 km/h in 5 km/h increments), and during travel over different types of terrain (comprising concrete road, gravel track and rough cross-country). Measurements were made at various crew positions (including the driver and commander) in both the front and the rear cabs in the vehicles. Three translational axes of vibration were measured in each seat. Two speeds were investigated over road (35 km/h and 55–60 km/h) and gravel (20 km/h and 35 km/h) surfaces. The effect of varying speed of the vehicle on the measured noise and vibration magnitudes was also investigated. The highest sound pressure level (LAeq) of 104 dB(A) was measured at the commander’s standing position during travel over concrete road at 55 km/h. Higher noise levels occurred for a standing commander compared with when sitting on the seat. A maximum single axis frequency-weighted vibration magnitude of 1.0 m/s2 r.m.s. was measured on the driver’s seat during travel over track at 35 km/h. Higher vibration magnitudes occurred during travel over track compared with travel over road. Both noise and vibration exposure of crew within the Viking vehicle increased with increasing speed of the vehicle.
- Subjects :
- 0209 industrial biotechnology
Acoustics
Computational Mechanics
Crew
Magnitude (mathematics)
Terrain
02 engineering and technology
Track (rail transport)
01 natural sciences
Whole-body vibration
010305 fluids & plasmas
020901 industrial engineering & automation
0103 physical sciences
Sound pressure
Mechanical Engineering
Viking military vehicle
Metals and Alloys
Vibration
Noise
Military Science
Single axis
Ceramics and Composites
Vibration dose value
Geology
Subjects
Details
- ISSN :
- 22149147
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Defence Technology
- Accession number :
- edsair.doi.dedup.....75a74adbf89362f21de23202f614df88