The choice of rational stiffness joints parameters of the cabin suspension levers in the vehicle

The article is devoted to the choice of rational stiffness parameters of the joints in the suspension levers in the vehicle cabin. The method of formation of cabins dynamic models at their inclusion in spatial dynamic models of vehicles is offered and programmatically realized. In the known methods, the attachment of the cabin to the frame is not taken into account or simulated using linear springs with parallel inclusion of linear dampers or without them. The proposed method deals with the geometric features of the lever guide apparatus, the location of shock absorbers and elastic elements, the presence of a stabilizer in the cabin suspension. In addition, the elastic-damping properties of the mounting parts of the cabin suspension elements are considered. This made it possible, even at the design stage, to investigate the effect of the stabilizer's torsional stiffness and the stiffness of the cabin suspension joints on the vibration loading of the cabin and the driver's seat, which are noticeable at frequencies above 7 Hz.