A new method to choose the approximate function in order to determine the correlation between the imposed and the obtained clearances in FDM | Zendy

Maria-Luiza Beșliu-Gherghescu | Zendy; Nicolae–Doru Stănescu | Zendy

Open Access

A 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 Beșliu-Gherghescu,

Nicolae–Doru Stănescu

Publication year - 2020

Publication title -

university of pitesti scientific bulletin - automotive series

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) , polynomial , zero (linguistics) , variation (astronomy) , order (exchange) , correlation , mathematical analysis , mathematical optimization , statistics , geometry , physics , linguistics , philosophy , finance , evolutionary biology , astrophysics , economics , 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.

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