Modelling and optimization of tractor ride conditions under water tanker operation

This study is aimed at investigating the effect of vibration on health and comfort in tractors with water tankers. The vibration was measured on the floor, seat pan, and backrest of the tractor at different speeds and water levels to optimize for low spinal load in terms of static compressive dose (Sed(8)) and comfort reaction (CR). The experiments were designed using the Taguchi Method and the Response Surface method, and the parameters were optimized using the desirability approach. Models developed to predict Sed(8) and CR showed a significant effect of speed and water level on Sed(8) and CR. The mean Sed(8) exceeded the limits of ISO 2631-5, indicating the probability of adverse health effects. The mean CR indicated uncomfortable exposure based on ISO 2631-1. The optimum ride levels were found at a speed of 8.4 m/s and water level of 3000 L. A confirmatory experiment substantiated the optimum conditions, with output lies within the 95% confidence interval of the predicted responses.