Comparative Analysis of Tooth-Root Strength Using ISO and AGMA Standards in Spur and Helical Gears With FEM-based Verification

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  • Andrzej Kawalec
    Rzeszów University of Technology, Department of Mechanical and Aerospace Engineering, ul. W. Pola 2, Rzeszów, PL-35-959, Poland
  • Jerzy Wiktor
    Rzeszów University of Technology, Department of Mechanical and Aerospace Engineering, ul. W. Pola 2, Rzeszów, PL-35-959, Poland
  • Dariusz Ceglarek
    Department of Industrial and Systems Engineering, The University of Wisconsin-Madison, Madison, WI

説明

<jats:p>Current trends in engineering globalization require researchers to revisit various normalized standards that determine “best practices” in industries. This paper presents comparative analysis of tooth-root strength evaluation methods used within ISO and AGMA standards and verifying them with developed models and simulations using the finite element method (FEM). The presented analysis is conducted for (1) wide range of spur and helical gears manufactured using racks or gear tools; and for (2) various combinations of key geometrical (gear design), manufacturing (racks and gear tools), and performance (load location) parameters. FEM of tooth-root strength is performed for each modeled gear. FEM results are compared with stresses calculated based on the ISO and AGMA standards. The comparative analysis for various combinations of design, manufacturing, and performance parameters are illustrated graphically and discussed briefly. The results will allow for a better understanding of existing limitations in the current standards applied in engineering practice as well as provide a basis for future improvements and/or unifications of gear standards.</jats:p>

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