Tractor Operator Objective Response to Seat Vibration in Real World Usage Pattern

Paper #:
  • 2013-26-0097

Published:
  • 2013-01-09
Citation:
Pawar, S., Bodla, M., Bhangale, R., and Kumbhar, M., "Tractor Operator Objective Response to Seat Vibration in Real World Usage Pattern," SAE Technical Paper 2013-26-0097, 2013, https://doi.org/10.4271/2013-26-0097.
Pages:
10
Abstract:
Whole Body Vibration (WBV) of tractors was measured on different surfaces in real world usage pattern of Indian customers on tractors of various capacities. Vibration levels were measured at the interface of the seat and the operator, on the seat base/floor and on the head. The mean weighted Root Mean Square (RMS) values along the different axes, the vector sum of weighted RMS values along the three orthogonal axes, the crest factor, Vibration Dose Value (VDV) and 8 h exposure levels were calculated according to ISO 2631-1. In addition to the above parameters, the transmissibility between the seat base and the seat interface (SEAT) and between the seat interface and the operator head (TR) were also calculated. Finally, these parameters were correlated with the subjective feel of customers which was captured through suitable questionnaires. It is observed that the Indian tractor operators are exposed to WBV that exceeds the cautionary boundaries set in place by the ISO 2631-1.
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