At the beginning of gear transmission design, mainly simplified methods of gear strength analysis based on ISO or AGMA standards are used. However, they allow for calculation of approximate and sometimes biased stresses. Moreover, ISO standard is generally focused on using racks for gear manufacturing. A method proposed in this paper allows for computation of the parameters of critical section, strength coefficients , , and tooth root stress according to the procedure from ISO standard also in the case of machining gears with gear type tools. The proposed improvement of ISO standard leads to replacement of real gear tool with rack with substitute tip radius . The developed method maintains basic assumptions and advantages of ISO standard, including its simplicity. Simultaneously, it allows for computing the maximum tooth root stresses : (i) very close to results of accurate geometric analysis and finite element analysis, and (ii) much closer, compared to conventional ISO procedure, to results obtained using AGMA standard.
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e-mail: ak@prz.edu.pl
e-mail: jwiktor@prz.edu.pl
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March 2008
Technical Briefs
Tooth Root Strength of Spur and Helical Gears Manufactured With Gear-Shaper Cutters
Andrzej Kawalec,
Andrzej Kawalec
Department of Mechanical and Aerospace Engineering,
e-mail: ak@prz.edu.pl
Rzeszów University of Technology
, W. Pola 2, 35-959 Rzeszów, Poland
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Jerzy Wiktor
Jerzy Wiktor
Department of Mechanical and Aerospace Engineering,
e-mail: jwiktor@prz.edu.pl
Rzeszów University of Technology
, W. Pola 2, 35-959 Rzeszów, Poland
Search for other works by this author on:
Andrzej Kawalec
Department of Mechanical and Aerospace Engineering,
Rzeszów University of Technology
, W. Pola 2, 35-959 Rzeszów, Polande-mail: ak@prz.edu.pl
Jerzy Wiktor
Department of Mechanical and Aerospace Engineering,
Rzeszów University of Technology
, W. Pola 2, 35-959 Rzeszów, Polande-mail: jwiktor@prz.edu.pl
J. Mech. Des. Mar 2008, 130(3): 034502 (5 pages)
Published Online: February 5, 2008
Article history
Received:
July 6, 2006
Revised:
August 11, 2007
Published:
February 5, 2008
Citation
Kawalec, A., and Wiktor, J. (February 5, 2008). "Tooth Root Strength of Spur and Helical Gears Manufactured With Gear-Shaper Cutters." ASME. J. Mech. Des. March 2008; 130(3): 034502. https://doi.org/10.1115/1.2829909
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