Timan 3330 - 3 Noise (Sound Pressure) and Vibrations; Sound Pressure Measurement; Measuring Vibrations

NOISE (SOUND PRESSURE) AND VIBRATIONS
8
3. NOISE (SOUND PRESSURE) AND VIBRATIONS
3.1 Sound pressure measurement
5 sound pressure measurements were taken on the machine.
Driving noise from the EU 985/2018 Annex II: 74 dB
Standing noise based on EU 985/2018 Annex II: 71 dB
Source strength measurement without equipment LWA based on ISO 6395: 2008 105 dB
Source strength measurement with sweeping n equipment LWA based on ISO 6395: 2008
102 dB
Sound level cabin EU1322 / 2014 method B: 79 dB
3.2 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 27 km/h.
Motor speed (revolutions) 3600 rpm
- Mowing grass with a Timan 1,35 m mowing conditioner
Driving speed: 6 km/h
Motor speed (revolutions) 3000 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 %