The boundary conditions and the deformation pattern of the frame structure when applying the deforming forces to the front beam along the longitudinal axis of the car, outside the longitudinal axis of the car and on the lateral truss of the car frame are given. The directions of application and values of the resulting loads are determined taking into account the overloads experienced by the pilot in collisions. The rode type finite element model of the frame is presented. The analysis of structural strength using ANSYS software is carried out. A conceptual block diagram of a methodology for designing a supporting structure model using engineering analysis methods (finite element modeling) is presented. The main strength characteristics of the material AISI-1020 are presented, which was used in the design of the frame chassis. The issues of the strength of the supporting structure are considered. The article presents the design features of subcompact small-capacity racing car of kart class. In the single sinusoidal steering input test, the time of stabilization could be reduced by 8.43% and with 14.6% less yaw angle changes in the improved design.

Moreover, at high speed, the original unsteady condition became stabilized with little sacrifice in yaw velocity. Through simulation, it was learned that the proposed control strategy could reduce the time of stabilization by 54.08% and suppress undesired handling behaviors in the step steering input test.

A control strategy is developed with an active variable stiffness anti-roll bar to improve vehicle handling characteristics by using the flexible body dynamic simulation with consideration of the step and single sinusoidal steering input tests. In this context, flexible multi-body dynamic modeling, instead of rigid body modeling, is used to reflect the stiffness effects of the vehicle body and chassis systems. A vehicle’s handling ability is changed when the structure of the power system is altered, which is more obvious in medium-sized buses with higher load and a longer body whose body stiffness is relatively less stiff. Electric vehicles are a major trend in research and development in the automobile industry.

Go kart frame table