One common mobile robot design consists of three ‘omniwheels’ arranged at the vertices of an equilateral triangle, with wheel axles aligned with the rays from the center of the triangle to each wheel. Omniwheels, like standard wheels, are driven by the motors in a direction perpendicular to the wheel axle, but unlike standard wheels, can slip in a direction parallel to the axle. Unlike a steere...

Abstract In this study the Peak Stress Method (PSM) has been applied to fatigue assessment of welds an axle equipped in off-road vehicle. design welded joints, PSM is a FE-based method rapidly evaluate NSIFs relevant opening, sliding and tearing modes by means linear elastic peak stresses extracted from FE model. First, axle, which consists central body two lateral branches composed several pla...

Posture sensing techniques for Compliant Framed Modular Mobile Robots (CFMMR) are presented in this paper using a new Relative Posture Sensor (RPS) combined with standard sensors in a tiered fusion algorithm. The fusion algorithm uses traditional Kalman filters and rigid axle kinematic models to predict the global posture of each axle. A Covariance Intersection filter then fuses disparate axle ...

Abstract The mechanical characteristics of the impeller are important indicators that determine working pump. pump is subjected to periodic hydraulic loads during process. This load will cause dynamic deformation and shaft, thereby further affecting distribution fluid. Liquid-solid coupling used. Method, rated operating point centrifugal analyzed, it proved stress shaft meets requirements, whic...

Vehicle load is an important factor for the fatigue damage of orthotropic steel decks. The traffic vehicles port highway in China are mainly multi-axle container trucks, which show different characteristics from conventional highways. Based on multi-period flow data collected by weight-in-motion system a bridge over sea Zhejiang, China, this study has investigated bridge. Eight typical spectrum...

In the springs of 2000, the Forest Engineering Research Institute of Canada (FERIC) undertook a series of studies to investigate the potential of using a combination of technologies to extend log hauling operations during the traditional spring break-up period. During spring break-up, thin pavement roads are weakened, resulting in the application of government-imposed load restrictions to preve...

This paper discusses impact of changes in the load size and distribution passenger cars on geometry suspension steering systems. It was found to have a major road safety. The research carried out with four most popular system designs used modern cars, i.e. multi-link both front rear axles, only axle, axle simple design for axles. Eight variants were tests. Changes following wheel parameters ide...