Raziskava vplivov na rast razpoke v korenu zoba polimernega zobnika

Zorko, Damijan (author), Kolar, Klemen (author), Mojškerc, Bor (author), Vukašinović, Nikola (author)

V sklopu raziskave so bili analizirani različni parametri, ki vplivajo na rast razpoke v korenu zoba in posledično na življenjsko dobo zobnika. V prvem koraku je bila z uporabo metode končnih elementov preverjena ustreznost metode 30° tangente, ki jo za določanje kritičnega prereza zoba uporablja standard za kontrolo jeklenih zobniških dvojic ISO 6336. V naslednjem koraku je bil pripravljen numerični model za simulacijo rasti razpoke v korenu. Numerični model upošteva eksperimentalne rezultate, pridobljene z izvajanjem standardnih zobniških testov na namenskem preizkuševališču. Z uporabo numeričnega modela je bil analiziran vpliv lokacije začetne razpoke, njene velikosti in orientacije.

• Language: Slovenian
• Keywords: polimerni zobniki, utrujanje, lom, odpoved, razpoka
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2023
• Number of pages: Str. 234-244
• Numbering: Letn. 29, št. 4
• PID: 20.500.12556/RUL-169095
• UDC: 621.8(497.4)
• ISSN on article: 1318-7279
• COBISS.SI-ID: 163195907
• Publication date in RUL: 12.05.2025

Record is a part of a journal

• Title: Ventil : revija za fluidno tehniko in avtomatizacijo
• Shortened title: Ventil
• Publisher: Univerza v Ljubljani, Fakulteta za strojništvo
• ISSN: 1318-7279
• COBISS.SI-ID: 54233856

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: English
• Title: Investigating the effects on root crack propagation in a polymer gear

Abstract

The study investigates the effects of various parameters on the root crack propagation and, consequently, the service life of the polymer gear. The international gear design standard ISO 6336 employs the 30° tangent method to determine the tooth’s critical section location. In the first step, the adequacy of the 30° tangent method, was verified by employing a FEM model. In the next step, a novel numerical model was prepared to simulate the growth of a crack located in the root of an observed tooth. The numerical model takes into account the experimental results obtained by performing standard gear tests on a dedicated test bench. Using the numerical model, the effect of the initial crack location, its size and orientation were analyzed.

• Keywords: polymer gears, fatigue, fracture, failure, crack

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: Z2-3207
• Name: Hitra karakterizacija dinamične korenske trdnosti polimernih zobnikov