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.