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THEORETICAL AND FINITE ELEMENT ANALYSIS OF STRENGTH DESIGN OF SPUR GEARS

Saragih, Rudolf S. and Lubis, Asnawi (2011) THEORETICAL AND FINITE ELEMENT ANALYSIS OF STRENGTH DESIGN OF SPUR GEARS. In: Seminar Nasional Sains dan Teknology IV, 29 - 30 November 2011, Universitas Lampung.

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    Abstract

    Gears is one of the most widely used power transmission in many industries. The design of gears is quite complicated because it requires largeparameters. There are two types of stresses that occur on gears –bending stress at the root of the teeth and contact stress at the surface of the teeth. The aim of this paper is to present results of theoretical and finite element studyof contact stress of spur gears. The geometry of spur gears simulated was taken from the gears of nut stirrer in PT. Garuda Food Bandar Lampung. Finite element modeling and analysis was done using ANSYS commersial software. PLANE183 element type was employed for gears with TARGE169 and CONTA172 used for modeling of surface-to-surface, flexible contact. Finite element analysis shows pressure contact of 1702 MPa, while the results of using theory of Hertz and AGMA design by rule shows pressure contact of 1826.2 MPa and 1650.9 MPa respectively. The relative difference of pressure contact between FEA and theory of Hertz is 6.8%, while between FEA and AGMA design by rule is 3%. For three dimensional stress in term of von-Mises stress, calculated stress using approach of two-cylinder in contacts is 1378.0 MPa, while theresults obtained using ANSYS simulation is 1601 MPa – they different by 13.9%. In conclusion, finite element procedure using ANSYS is very useful in contact stress analysis.

    Item Type: Conference or Workshop Item (Paper)
    Uncontrolled Keywords: finite element analysis, spur gears, contact stress
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Divisions: Fakultas Teknik > S1 Teknik Mesin
    Depositing User: Fakultas Teknik Mesin
    Date Deposited: 30 May 2013 12:57
    Last Modified: 30 May 2013 12:57
    URI: http://repository.unila.ac.id/id/eprint/207

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