WHOLE-BODY VIBRATIONS IN TRUCKS AND MINING INDUSTRY MACHINES

HELKROPPSVIBRATIONER I INDUSTRITRUCKAR OCH GRUVMASKINER

Vibration measurements were made in accordance with the iso 2631 standard. Entire work cycles were analysed. The studies indicated that vibration in drills was slight. However, there was severe vibration in wheel-loaders in the mining industry. Vibration in three of the six machines presented a risk to health during 8 hours of exposure. Vibration presented a risk to health in 6 of the 41 industrial trucks studied if exposure lasted 8 hours. Vibration reduced the work capacity of the driver in 2/3 of the machines studied. In the industrial trucks, vertical resonance was recorded in the 2-10 hz range. The resonance frequency depended on the size of the truck. Large and heavy trucks displayed a lower frequency than small, light tricks. Drills differed from the other machines by having a high resonance frequency. The other machines studied had resonance frequencies under 10 hz. The resonances found for some of the industrial trucks had such narrow bands so close to one another that they could not be distinguished in 1/3-octave band analysis. For drivers of industrial trucks, vertical vibration was regarded as most fatiguing. In general, this also applied to the mining machines. There were no differences between the loading in heavy and light industrial trucks. Only one of the nine driver's seats tested reduced vibration loading of the driver according to iso 2631. /TRRL/

  • Availability:
  • Corporate Authors:

    Arbetarskyddsstyrelsen

    S-171 84 Solna,   Sweden 
  • Authors:
    • Hansson, J-E
    • WIKSTROEM, B-O
  • Publication Date: 1977

Language

  • Swedish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00189673
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jun 13 1979 12:00AM