Application and analysis of right helicoidal shells

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Abstract


Drilling machines with drilling elements as helicoid are widely used while making of drilling auger, round section testpit and so on in crust for exploration of geological structure, searching, prospecting, minerals extraction, engineering geological research. Helicoidal shells can be designed as right, inclined, open and wrong-unfolding. There are main thesises of calculation method given by V.G. Rekach for right helicoid.

About the authors

M J Rynkovskaya

Peoples' Friendship University of Russia

Email: marine_step@mail.ru
Кафедра прочности материалов и конструкций; Российский университет дружбы народов; Peoples' Friendship University of Russia

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Copyright (c) 2009 Рынковская М.И.

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