Thin-walled structures like crash boxes may be used as energy absorption members in automotive chassis. There have been many studies addressing the behaviors of energy absorption members on frontal crash. These researches have attempted to predict the energy absorption and maximum impact load in shell structures. The energy absorption and maximum impact load depend on many parameters including ...

In this paper, the effects of container size on the porosity of random loose packing of mono size particles have been investigated using an Event Dynamics (ED) based model. Simultaneous effects of square container walls on particles packing and their order are also investigated. Our simulation results indicate higher container size will increase the total packing factor and high density regions...

Abstract The interface shape of a fluid in rigid body rotation about its axis and partially filling the container is often subject homework problem first graduate fluids class. In that problem, surface tension neglected, parabolic contact angle boundary condition not satisfied general. When accounted for, shapes exhibit much richer dependencies as function velocity. We analyze steady rotating r...

this study analyses the concept of cost functions for semi-automated straddle carrier (sc), rubber tyred gantry (rtg) and automated rail mounted gantry (rmg) container yard operating cranes. it develops a generic cost based model for a pair-wise comparison, analysis and evaluation of economic efficiency and effectiveness of container yard equipment to be used for decision-making by terminal pla...

Regarding the reported capabilities and the simplifications of the smoothed particle hydrodynamics (SPH) method, as a mesh-free technique in numerical simulations of the deformation processes, a 2-D approach on cold rolling process was provided. Using and examining SPH on rolling process not only caused some minor developments on SPH techniques but revealed some physical realities. The chosen t...

We describe a simple modification to a rigid endoscope so as to provide both high-quality conventional and confocal images of reasonably accessible regions of the body. This versatile system uses a structured illumination approach together with a conventional incoherent illumination source. Images taken in fluorescence are presented using this combined conventional and confocal endoscope.

Weakly convex polyhedra which are star-shaped with respect to one of their vertices are infinitesimally rigid. This is a partial answer to the question whether every decomposable weakly convex polyhedron is infinitesimally rigid. The proof uses a recent result of Izmestiev on the geometry of convex caps.

The maritime industry is witnessing an increasingly loud call to contribute the global trend towards environmental sustainability and decarbonization. One possible policy measure use of speed limits reduce harmful emissions from ocean shipping. While idea slowing down ships obey might seem intuitive, one key distinguishing characteristic container shipping that it designed adhere a fixed, typic...

To determine the throughput of automatic gate flushing device, which is part hydraulic water level controller with flexible working bodies, developed by author together Ya.V. Bochkarev, experimental studies were conducted. They carried out method physical modeling model and nature on an installation, installation two models shutter: a) a fixed angle inclination pressure board, b) shutter in for...