Главная страница
russian   english
16+
<< back

Title of Article

DIRECT METHOD TO CALCULATE THE GENERATRIX SHAPE OF A BODY OF REVOLUTION WITH MINIMUM DRAG PENETRATING INTO THE SOIL


Issue
4
Date
2014

Article type
scientific article
UDC
539.3
Pages
245-249
Keywords
penetration, soil, Grigoryan model, drag, Bezier polynomial, unconditional parametric optimization


Authors
Kotov V.L.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Linnik E.Yu.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo


Abstract
The article considers the problem of determining the shape of a projectile with minimum drag penetrating into the soil as compared with other bodies of revolution of a given length and a cross-section radius. Calculations are carried out according to numerical techniques in continuum mechanics in the framework of the Grigoryan soil model. An effective direct method of finding an optimal body shape has been developed on the basis of the approximation of the desired generatrix shape of a body of revolution by the Bezier parametric polynomial curve.

File (in Russian)