Optimization of Human Comfort Reaction for Suspended Cabin Tractor Semitrailer Drivers

This work has been conducted to study on comfort level of drivers of suspended cabin tractor semitrailer. Some drivers suffer from low back pain caused by vibration. The practical significance of applying suspended cabin type of tractor semi trailer was tested at different road conditions, different speed as well as different load conditions for comfortable driver seat interface (x, y, z ) and the process parameters have been prioritized using Taguchi-s L27 orthogonal array. Genetic Algorithm (GA) is used to optimize the human comfort vibration of suspended cabin tractor semitrailer drivers. The practical significance of applying GA to human comfort to reaction of suspended cabin tractor semitrailer has been validated by means of computing the deviation between predicted and experimentally obtained human comfort to vibration. The optimized acceleration data indicate a little uncomfortable ride for suspended cabin tractor semitrailer.





References:
[1] International Organization for Standardization ISO 2631-1, 1-31.
Mechanical vibration and shock -evaluation of whole body vibration -
Part 1 general requirement. 1997.
[2] Lines. J.A., Stiles.M., Whyte. R.T. whole body vibration during tractor
driving. Journal of Low Frequency Noise and Vibration, 14(2) pp87-
104, 1995.
[3] Bovenzi.M., and Zadini.A. Self-reported low back symptoms in urban
bus drivers exposed to whole body vibration. Spine, 17, pp1048-
1059,1992.
[4] Parsons, K.C., Whitham, E.M., Griffin, M.J.Six axes vehicle vibration
and its effects on comfort. Ergonomics 22,211-225,1979.
[5] Parsons, K.C., Griffin, M.J. The effect of the position of the axes of
rotation on the discomfort caused by whole-body Roll and Pitch
vibrations of a seated persons. Journal of Sound and Vibration 58, pp
127-141,1978.
[6] Neitzel, R., Yost, M.Forestry vibration and noise exposure project.
Department of Environmental Health, University of Washington, Seattle,
Washington, USA, 2003.
[7] Els, P.S.The applicability of ride comfort standards to off-road vehicles.
Journal of Terramechanics 42, pp47-64,2005.
[8] Eger, T., Salmoni, A., Cann, A., Jack, R. Whole-body vibration exposure
experienced by mining equipment operators. Occupational Ergonomics
6, pp121-127, 2006.
[9] Lakshminarayanan AK, Balasubramanian V , Comparison of RSM with
ANN in Predicting tensile strength of friction stir welded AA 7039
aluminium alloy joints. Transaction of Nonferrous Metals Society of
China. 19, 9-18, 2009.
[10] Benyounis KY, Olabi AG, Optimization of different welding processes
using statistical and numerical approachesÔÇöA reference guide. Adv Eng
Softw 39,483-496, 2008.
[11] Senthil Kumaran.S, Muthukumaran.S, Vinodh.S, Optimization of
friction welding of tube to tube plate using an external tool, Structural
and Multidisciplinary Optimization, 42, 449-457, 2010.
[12] Casalino G, Curcio F, Memolo F, Minutolo C, Investigation on
Ti6A14V laser welding using statistical and Taguchi approaches. J
Mater Process Technol 167,422-428, 2005.
[13] MINITAB TM Statistical software, Release 15.
[14] Kim D, Rhee S, Optimization of arc welding process parameters using a
genetic algorithm. Weld J, 184-189, 2001.