Abstract. In this paper we present a system for real-time control of agile ground vehicles operating in rough 3D terrain replete with bumps, berms, loop-the-loops, skidding, banked-turns and large jumps. The proposed approach fuses local-planning and feedback trajectory-tracking in a unified, simulation-based framework that operates in real-time. Experimentally we find that fast physical simula...

Ideal carving occurs when a snowboarder or skier, equipped with a snowboard or carving skis, describes a perfect carved turn in which the edges of the ski alone, not the ski surface, describe the trajectory followed by the skier, without any slipping or skidding. In this article, we derive the " ideal-carving " equation which describes the physics of a carved turn under ideal conditions. The la...

Abstract Sliding and spinning behaviors significantly affect the performance of rolling bearings, especially for dry-lubricated micro macro sliding may lead to increased wear solid lubricating film. A unified contact tribology analytical model is proposed angular ball bearings (ACBBs) considering extreme conditions including high combined loads effects. comprehensive solution framework ensure r...

The Twistcar vehicle is a classic example of nonholonomic dynamical system. model consists two rigid links connected by an actuated rotary joint and supported wheeled axles, where constraints are assumed to impose no skidding the wheels. Recent experimental measurements conducted with robotic prototype have shown disagreements previous theoretical analyses. In particular, significant has been o...

skidding operations can cause considerable and wide spread soil disturbance. the objective of this study was to evaluate the effects of ground skidding operations on soil compaction, moisture content, and total porosity at different levels of slope and traffic frequency. four levels of traffic intensity (3, 8, 13, and >13 passes of a crawler tractor onezhets ? 110) and three levels of slope ( 2...

This article presents the results of work related to design, analysis, and manufacturing shaft for an electric go-kart. Works considered stiffness various conditions affecting vehicle while driving. In previous stage project, motor gear transmission were selected. The main goal this case study was design 10 kW rear driving axle go-kart is not equipped with a differential. equal rotational speed...