Timan VPM-3400 - Noise and Vibrations; Noise and Vibration Measurements

MAINTENANCE
15
7 NOISE (SOUND PRESSURE) AND VIBRATIONS
7.1 Sound pressure measurement
Four sound pressure measurements were taken on the machine.
Sound pressure measurement:
- While driving in accordance with directive 2009/63/ES 77 dB
- Measuring source intensity L
WA
according to ISO 6395:2008 105 dB
- Measuring source intensity L
WA
during an operating situation 109 dB
- Measuring sound pressure in the cab L
PA
according to 2009/76/EF 79 dB
7.2 Measuring vibrations
Two vibration measurements were taken
- The vibration of the body on the seat was
measured.
- Vibration of the hands/arms on the steering
wheel was measured.
The measurements were taken with VibroControl.
A test procedure according to DS/EN 1032 was used.
Measurements were taken in 2 various operating situations
- Driving on a road at a speed of 20 km/h.
Motor speed (revolutions) 3000 rpm
- Mowing grass with a Timan 1,35 m mowing conditioner
Driving speed: 6 km/h
Motor speed (revolutions) 2500 rpm
Body vibration when driving on a road: a
w max
= 0.48 m/s
2
Body vibration when mowing grass: a
w max
= 0.69 m/s
2
Vibration of hands and arms when driving on a road:
a
hv
= 0.60 m/s
2
Vibration of hands and arms when mowing grass:
a
hv
= 1.08 m/s
2
Vibration measurement uncertainty: ± 10 %