Vol.3, No 15, 2003 pp.1055-1066
UDC 532.12+ 620.10+521.8
Invited Paper
THE ANALYSIS OF CONTACT STRESS ON MESHED
TEETH'S FLANKS ALONG THE PATH OF CONTACT
FOR A TOOTH PAIR
Vera Nikolić-Stanojević, Ivana (Atanasovska) Cvejić
Faculty of Mechanical Engineering Kragujevac
Sestre Janjić 6, 34 000 Kragujevac, Serbia
Abstract. The basic task of this paper is analysing and determining
the shape of the function which defines the change of contact stresses
on tooth flanks along the path of contact for a tooth pair. The determination
of contact stress maximum point and the calculation of its value is possible
if the course of change of contact stress is provided. This enables the
precise calculation of a gear pair pitting resistance.
The numerical method – Finite Element Method (FEM) is used for modeling
the contact of tooth flanks. This paper gives the detailed description
of model development procedure. The results provided for the stress state
of tooth flanks are also presented and discussed.
The comparison of analyticly and numericly obtained curves of change
in stress state on meshed tooth flanks, confirmed the accuracy of the developed
model. This model opens new possibilities for succesful application in
calculations and research involved in improving the geometry of gears pairs.
Key words: Gears, Contact stress, The Finite Element Method
ANALIZA KONTAKTNIH NAPONA NA MREŽI ZUBA
DUŽ KONTAKTA ZA PAR SPREGNUTIH ZUBA
Osnovni zadatak u ovom radu je analiza i odredjivanje oblika funkcije koja
definiše promenu kontaktnih napona na ivici-boku zuba duž puta kontakta
za par zuba. Odredjivanje tačke maksimalnog napona kontakta i njihov proračun
je moguć ako je pravac kontakta zuba predvidljiv. Korišćena je numerička
metoda – metoda konačnih elemenata za modeliranje kontakta zuba. Ovaj rad
daje detaljan opis razvoja procedure. Uporedjeni su analitički i numerički
rezultati.
