A CONTRIBUTION TO THE INVESTIGATION OF SIMULTANEOUS RANDOM TRANSLATORY VIBRATIONS ON HUMAN FATIGUE FROM THE PSYCHOLOGICAL STANDPOINT

In using vehicles man is subjected to the influence of the vibratory environment. This influence may be represented by a system of random functions. The studies performed so far on the effects of oscillatory loads on the fatigue of man are in most cases based on monitoring the effects of one of the components of harmonic oscillations (e.g., the vertical or lateral components, etc). More recent efforts are aimed at exploring phenomena of fatigue in subjects exposed to random vibrations. It should be noted that the results obtained so far are relatively scarce, relating to individual actions of the components of translatory accelerations. An attempt is made in the present paper to define more closely the behaviour of man subjected to random oscillations by way of monitoring translational oscillatory loads on the waist during the process of stationary normal walking on a group of 35 subjects. The investigation carried out indicates that man subjected to the simultaneous action of translational oscillatory loads tolerates the vertical oscillations better than the lateral and fore-and-aft oscillations up to about 3 Hz. Between approximately 3 and 6 Hz the fore-and-aft oscillations are tolerated better than the vertical oscillations, whereas between 3.5 and 5 Hz the lateral oscillations are tolerated better than the vertical oscillations. Above 6 Hz man tolerates the vertical oscillations better than the fore-and-aft oscillations, and above 5 Hz the same is true for the vertical and lateral oscillations, respectively. The results obtained may be used for the purpose of proposing the standards for the assessment of the effects of simultaneous action of the translational random oscillatory loads on the fatigue of man. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14775360
• Corporate Authors:

  Inderscience Enterprises Limited

  World Trade Center Building, 110 Avenue Louis Casai
  Geneva,   Switzerland 
• Authors:
  • DEMIC, M
• Publication Date: 1987

Media Info

• Features: References;
• Pagination: p. 391-399
• Serial:
  • International Journal of Vehicle Design
  • Volume: 8
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1477-5360
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=IJVD

Subject/Index Terms

• TRT Terms: Drivers; Electromagnetic frequencies; Evaluation; Physiological fatigue; Physiological tolerance; Psychological aspects; Vehicle occupants; Vibration
• ITRD Terms: 1772: Driver; 9020: Evaluation (assessment); 2222: Fatigue (human); 6997: Frequency; 2051: Human tolerance; 1715: Vehicle occupant; 5558: Vibration
• Subject Areas: Highways; Passenger Transportation; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00480294
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: No. 4/5/6
• Files: ITRD, TRIS
• Created Date: Mar 31 1989 12:00AM