Road roller operator’s vibroprotection system improvement

Abstract

Abstract The article reflects the results of the theoretical and experimental studies aimed to reduce dynamic influences on a road roller operator’s workplace by changing the design parameters of the ‘supporting surface – road roller – operator’ dynamic system. The results of the experimental studies on the modernized hinged tie rods construction are presented. The rigidity coefficients of the springing elements of the hinged tie rod ends are determined. The dependence of the rigidity coefficient on the deformation value of the hinged tie rod ends is graphically presented. A comparative analysis of the experimental studies results aimed at determining the value of the dynamic influences on an operator’s workplace (a cabin floor and a seat) carried out with a road three-axle three-wheeler roller with plant and modernised hinged tie rods. The transmission coefficients from the internal combustion engine to the cabin floor and the operator’s seat are obtained at small, medium and high engine speeds, with a vibration exciter switched on and off. The conclusions on the legal use of the modernised hinged tie rod structure as a component of the vibroprotection system of a road roller operator have been drawn.