The Ogee Spillway is one of the most crucial flood control structures, and it developed at same time as dams. Spillway's downstream portions experience scouring due to flow, a problem that persists in reality. This paper aims investigate hydraulic performance stepped block dissipater using three-dimensional simulation model. dissipated was given new distribution may be one, two, or three rows t...

This work encompasses together a number of diverse disciplines (physiology, biomechanics, fluid mechanics and simulation) in order to develop a predictive model of the behaviour of a prosthetic heart valve in vivo. The application of simulation, for the study of other cardiovascular problems, such as blood clotting is also discussed. A commercial, finite volume, computational fluid dynamics (CF...

Taking the spur gear as the object of study, based on the dynamic analysis of gear transmission system, the dynamic stress intensity factors of cracked gear teeth are studied by using ANSYS software. The calculation of dynamic stress intensity factor is realized by ANSYS parametric design language. Firstly, the involute tooth profile equation and the root transition curve equation of the gear t...

Contemporary computing packages handle a wide variety of stress analysis types, but are yet to provide an optimal way to handle certain load cases and geometries. Blades in gas turbine propulsion systems, for instance, undergo repetitive thermal and mechanical load cycles of varied shape and phasing. Complexly-shaped airfoils create non-uniform stress paths that exacerbate the problem of FEA so...

The main objective of this research work is to find the natural frequency and mode shape of truck transmission housing. Truck transmission housing or gearbox transmission casing is subjected to vibration induced by the excitation forces transmitted to the casing through bearings. So it is required to find the natural frequency for the accurate prediction of housing life and prevent it from frac...

The vibration suppression efficiency of so-called shunted piezoelectric systems is decisively influenced by the number, shape, dimensions and position of the piezoelectric ceramic elements integrated into the structure. This paper presents a procedure based on evolutionary algorithms for optimum placement of piezoelectric ceramic modules on highly constrained lightweight structures. The optimiz...

The purpose of this study is to perform an analysis of the process of experimental testing of the thermal control system of the “AIST” small satellite, using the computer simulation of the satellite’s flight in the “TERM” software package. Based on the telemetry data, obtained by the Samara University satellite ground control center, actualized parameters of the ground testing process were prop...

shot peening applies a residual compressive stress field (rcsf) on the surface of parts. it also shifts “crack nucleation sites” to sub-surface locations. a nondestructive method of measuring the stresses, sin2ψ was utilized here and the stress values introduced to ansys software. for this purpose, uniform stress in all directions was applied on the con rod. loading on the rod in ansys had thre...