Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia (RUDN University)10839Research ArticleON OPTIMUM FORM OF GROUND-THROWER'S BLADESemkivO M-PopovaA N-ShatokhinV M-Kharkov National University of Building and Architecture, Kharkov, UkraineNational University of Public Defense of Ukraine, Ukraine150220132495512092016Copyright © 2016, Structural Mechanics of Engineering Constructions and Buildings2016Method of determination of ground-thrower's blade optimum form is based on solution of brachistochrone problem for the field of centrifugal inertial forces. Blade of optimal shape, called brachistochrone, in the centrifugal force field, which equation had been obtained in polar coordinate system, is considered. The results of kinematic behaviour researches of mov- ing particle are given.Optimal formground-thrower's bladethe Euler' equationbrachistochrone problemптимальная формароторный грунтометательуравнение Эйлерадвижение частиц грунтазадача о брахистохроне в поле центробежных сил