Open AccessA new method to choose the approximate function in order to determine the correlation between the imposed and the obtained clearances in FDM
Author(s) -
Maria-Luiza Beşliu-Gherghescu,
Nicolae–Doru Stănescu
Publication year - 2020
Publication title -
buletin ştiinţific - universitatea din piteşti. seria autovehicule rutiere
Language(s) - English
Resource type - Journals
eISSN - 2601-0380
pISSN - 1453-1100
DOI - 10.26825/bup.ar.2020.004
Subject(s) - mathematics , function (biology) , value (mathematics) , variation (astronomy) , polynomial , order (exchange) , zero (linguistics) , correlation , mathematical optimization , mathematical analysis , statistics , geometry , physics , economics , linguistics , philosophy , finance , evolutionary biology , astrophysics , biology
Practical experiments proved that the variation of clearance between two circular pieces simultaneously manufactured by FDM, in function of different parameters has a complex variation starting from zero when the imposed clearance has a small value and being approximated by the value of the imposed clearance when the last one has great values. This observation implies that the resulted clearance may be approximated by non-linear functions for which one has to impose some frontier conditions. In this paper we discuss the conditions which have to be fulfilled by the candidate functions, considered only by polynomial ones.