Vibration control for comfortable ride in tractor

Abstract

In modern agriculture, the use of tractors is essential for activities such as cultivation, soil preparation, and pulverization, among others. Farmers increasingly depend on agricultural machinery due to its efficiency and immediate availability. As such, ride comfort is crucial for achieving productivity targets while also ensuring the health and safety of operators. This paper discusses driver comfort and safety in off-road vehicles, along with the vibration measurement processes and practical solutions to enhance the overall experience for tractor operators. In this report, case study related to enhanced customer comfort by reduction of steering system vibration is presented. Systematic approach is used to understand the steering performance, replication in lab, incorporation of advance testing like ODS (Operational Deflection Shape) and virtual analysis to execute the different iterations. Target location stiffening is adopted based on the modal strain response to achieve the desired results. With modified design, there is significant vibration reduction. By incorporating the ISO standards and appropriate weighting filter, Ride and comfort evaluation process is established in conjunction with subjective evaluation. Quantification of Ride and Comfort parameters for steering system are discussed in this report. KEYWORDS: Hand Arm Vibration, Steering System, ODS Testing (Operational deflection Shape), Dynamics, Modal Testing, Modal Analysis, Engine Vibrations, Vibration parameter, Vibration limit evaluation