DOI QR코드

DOI QR Code

지게차 출발감각 평가지수 개발

Development of Start Feel Index of a Forklift Truck

  • 발행 : 2002.01.01

초록

In this paper the start fuel index was developed to estimate ride quality of a forklift truck during the start motion. Through the consultation with test drivers, definition of start feel was made, and three parameters were selected to describe the start motion. They are engagement shock in the forwarding direction, vertical and pitch vibration respectively. To find out the relation between the measured motion and the subjective fueling, both the subjective rating and the measurement of vehicle motions were performed simultaneously. The correlation analysis between the two kinds of results showed start fuel was expressed by the measured accelerations with accuracy and reliability, Use of the new index has advantages of not only evaluating start fuel only by the measured signals but providing the consistent results which are not affected by physical and mental state of a test driver. Usefulness of the new index was confirmed by verification test on four new forklift trucks of a same model, which showed the order of preference by the index was coincided that by subjective evaluation.

키워드

참고문헌

  1. Griffin, M.J., 1990, Handbook of Human Vibration, Academic Press
  2. Daniel, W. W., 1990, Applied Nonparametric Statistics, 2nd ed., PWS-Kent Publishing Company
  3. Griffin, M. J. and Whitham, E. M., 1980, 'Discomfort Produced by Impulsive Whole-body Vibration,' Journal of Acoutical Society of America, 68(5), pp. 1277-1284 https://doi.org/10.1121/1.385121
  4. Howarth, H. V. C. and Griffin, M. J., 1988, 'The Frequency Dependence of Subjective Reaction to Vertical and Horizontal Whole-Body Vibration at Low Magnetudes,' Journal of Acoustical Society of America, 83(4), pp. 1406-1413 https://doi.org/10.1121/1.395947
  5. Jang, H.-K. and Greffin, M. J., 'Effect of Discomfort Associated with Differential Vertical Vibration at the Seat and Feet,' Journal of Sound and Vibration, 229(9), pp. 273-286, 2000 https://doi.org/10.1006/jsvi.1999.2489
  6. Jang, H.-K. and Griffin, M. J., 'The Effect of Phase of Differential Vertical Vibration at the Seat and Feet on Discomfort,' Journal of Sound and Vibration, 223(5), pp. 785-794, 1999 https://doi.org/10.1006/jsvi.1999.2156
  7. Ebe, K. and Griffin, M. J., 2000, 'Qualitative Models of Seat Discomfort Including Static and Dynamic Factors,' Ergonomics, 43(6), pp. 771-790 https://doi.org/10.1080/001401300404742
  8. Ebe, K. and Griffin, M. J., 2000, 'Quantitative Prediction of Overall Seat Comfort,' Ergonomics, 43(6), pp. 791-806 https://doi.org/10.1080/001401300404751
  9. Braun, S. ed., 1986, Mechanical Signature Analysis-Theory and Application, Academic Press
  10. International Organization for Standardization, 1997, Mechanical Vibration and Shock-Evaluation of Human Exposure to Whole-body Vibration, ISO 2631-1
  11. Stevens. S. S., 1986, Psychophysics: Introduction to Its Perceptual, Neural, and Social Prospects, New Brunswick
  12. Cucuz, S., 1994, 'Evaluation of Ride Comfort,' International Journal of Vehicle System Design, Vol. 15, No, 3/4/5, pp. 318-325
  13. Kozawa, Y., Sugimoto, G. and Suzuki, Y., 'A New Ride Comfort Meter,' SAE Technical Paper, No.86-430
  14. Smith, C. C., 1976, 'The Prediction of Passenger Riding Comfort from Acceleration Data,' Research Report 16, Department of Transportation, The University of Texas at Austin, 1976
  15. Guilford, J. P., 1954, Psychometric Methods, 2nd ed., McGraw-Hill
  16. Chen, C. T., 1999, Linear System Theory and Design, 3rd ed., Oxford University Press