In the field of warhead design, non-cylindrical warhead, especially elliptical cross-section has received considerable attention. this study, initial velocity and distribution characteristics preformed fragments a columnar projectile with an were examined. To obtain in kind projectile, three projectiles different geometric sizes test based on static detonation tests. Then, numerical models have...

in this paper, a method based on binary-coded genetic algorithm is proposed to explore an optimization method, for obtaining an optimal elliptical tank. this optimization method enhances the rollover threshold of a tank vehicle, especially under partial filling conditions. minimizing the overturning moment imposed on the vehicle due to c.g. height of the liquid load, lateral acceleration and ca...

Aim of study: To investigate how the cross section a drip-irrigation tape affects local head loss.Area The work was carried out in laboratory Irrigation hydraulics, College Water Conservancy and Environment, Three Gorges University, Yichang, Hubei province.Material methods: Tapes with six different wall thicknesses were studied experimentally to determine relationship between cross-section defo...

In this paper, a method based on binary-coded genetic algorithm is proposed to explore an optimization method, for obtaining an optimal elliptical tank. This optimization method enhances the rollover threshold of a tank vehicle, especially under partial filling conditions. Minimizing the overturning moment imposed on the vehicle due to c.g. height of the liquid load, lateral acceleration and ca...

namics software (CFD) was used to calculate natomical differences on flow resistance and inspiratory flow rates. Two types of models e segmented images. (1) Area-length curves of sopharynx through the epiglottis were used to tric flow models. These models were used to rea variation of flow resistance and pressure. e segmented 3D reconstruction were created, perpendicular to the airway centerlin...

Abstract The object of this paper is the Saint-Venant torsion a solid elliptical cylinder made orthotropic homogeneous piezoelectric material. We find shape cross section which does not warp under applied torque. sizes section, has maximum value torsional rigidity for given cross-sectional area, are also determined.