PL
Badano zależność pomiędzy ortotropowością perydermy bulw ziemniaków a wartością kinetycznego współczynnika tarcia zewnętrznego bulw o podłoże. Wyniki badań potwierdziły założenie badawcze, że ortotropowość perydermy bulwy ma wpływ na wartość jej siły tarcia, a tym samym na wartość współczynnika tarcia.
EN
Orthropism of the structure and texture of tuber periderm can result in the fact that the movement of the tuber along a friction face in different directions will cause different friction forces. The aim of the examination was to explain a dependence between the orthropism of potato tubers periderm, and the kinetic value of the coefficient of external friction of tubers against the rubber base. Examinations of measurement of friction force of tubers against the base were done on the test stand equipped with extensometric sensors of force measurement integrated with a microcomputer. Results of examinations confirmed the assumptions that tuber periderm orthropism influences its friction force and therefore the friction coefficient value.