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...

The study concerns the problem of overloading vehicles driven on public roads. gross vehicle mass and individual axle loads are limited by legal regulations. However, a tricking method, applicable to most popular designs motor multiaxial tractor-semitrailer units, has been shown that weighing inspectors, even if provided with precise scales, may be deceived without any interference in scale ope...

Probabilistic assessment on the code-specified impact factors of RC decks is investigated by means of a three-dimensional traffic-induced dynamic response analysis of bridges combined with the Monte Carlo simulation technique. The random variables considered in the simulation are the roadway roughness, bump height, traveling position of vehicles, vehicle running speed and axle load of three-axl...

Wheels are very important for the safety of a train. The diameter of the wheel is a significant parameter that needs regular inspection. Traditional methods only use the contact points of the wheel tread to fit the rolling round. However, the wheel tread is easily influenced by peeling or scraping. Meanwhile, the circle fitting algorithm is sensitive to noise when only three points are used. Th...

We find that the recently introduced model of self-trapping supported by a spatially growing strength of a repulsive nonlinearity gives rise to robust vortex-soliton tori, i.e., three-dimensional vortex solitons, with topological charges S≥1. The family with S=1 is completely stable, while the one with S=2 has alternating regions of stability and instability. The families are nearly exactly rep...

In spite of knowledge of conventional gating design casting defects such as shrinkage and gas porosities were found in front axle housing a critical automotive component. This component is generally made out of spheroidal graphite iron. A flawed gating system was found to be the reason for improper fluid flow and melt solidification which in turn produced casting defects. Optimization of the ga...

Interlocked molecules such as catenanes and rotaxanes, connected only via mechanical bonds have the ability to perform large-scale sliding and rotational movements, making them attractive components for the construction of artificial molecular machines and motors. We here demonstrate the realization of large, rigid rotaxane structures composed of DNA origami subunits. The structures can be easi...

This study examined the effect of seat position on handrim biomechanics. Thirteen experienced users propelled a wheelchair over a smooth level floor at a self-selected speed. Kinetic and temporal-distance data were collected with the use of an instrumented rim and a motion analysis system. A custom-designed axle was used to change the seat position. We used repeated measures analysis of varianc...

ABSTRACT At final parameters and characteristics of tyre can influence several basic elements – tyre composition, sort of used fillers, caoutchouc, reinforcing materials, their construction, choice of curing process, process of stabilization, storage conditions and so on. Nowadays by motorizing development are producers specialized for tire properties parameterize. This fact is necessary to sat...