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ARTICLE
The impact of the structural form on the stress distribution in a flexspline of a hermetic harmonic driver
1
Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, Rzeszow, Poland
Submission date: 2017-11-05
Acceptance date: 2020-05-06
Online publication date: 2020-10-15
Publication date: 2020-10-15
Journal of Theoretical and Applied Mechanics 2020;58(4):1049–1060
KEYWORDS
ABSTRACT
This paper presents a comparative analysis with different models of the flexspline for a harmonic
hermetic drive. The flexspline is a thin-walled construction, deforming during work,
so its design is a very complicated process. The paper contains a strength analysis for some
selected models of this gear. Calculations were performed using the finite element method
(FEM) in ADINA. The work presents stress diagrams in longitudinal intersections for susceptible
wheels of different shapes for direct comparison. Suggested changes in construction
of the flexspline will increase durability of a welded hermetic gear.
REFERENCES (25)
1.
Artjuchin W. A., Kaspierowic N. S., Ciecina M. N., 1968, Machine Design. Design Catalogue (in Russian), Mashinostrojenie, Moskva.
2.
Budzik G., Pacana J., 2005, Stress analysis in the flexspline ring in a hermetic harmonic drive (in Polish), Western Center of the Ukrainian Academy of Transport, 12, 148-150.
3.
Budzik G., Kozik B., Pacana J., 2009, Determinig of model similarity for flexspline of harmonic drive with the use of FEMand extensometer method, Journal of KONES Powertrain and Transport, 16, 55-60.
4.
Danilov A.J., 1983, Recommendation for construction of membranes with complex curvatures in harmonic hermetic drives (in Russian), Mashinovedenije, 4, 67-71.
5.
Dudley D.W., 1962, Harmonic Drive Arrengements, Gear Handbook, McGraw-Hill Publishing Co. 3-35 to 2-43.
6.
Folęga P., 2009, Numerical stress analysis of harmonic drive elements by BEM, Problemy Eksploatacji, 1, 85-92.
7.
Folęga P., 2015, Computer-Aided Engineering of Selected Gear Transmission Elements (in Polish), Publishing House of the Silesian University of Technology, Gliwice.
8.
Gravagno F., Mucino V.H., Pennestri E., 2016, Influence of wave generator profile on the pure kinematic error and centrodes of harmonic drive, Mechanism and Machine Theory, 104, 100-117.
9.
Ishikawa S., 1967, The gear geometry of tooth engagement in harmonic drive, Proceedings of the JSME Semi-International Symposium, Tokyo, 94-104.
10.
Jeon H.S., Oh S.H., 1999, A study on stress and vibration analysis of a steel and hybrid flexspline for harmonic drive, Composite Structures, 47, 827-833.
11.
Kayabasi O., Erzincanli F., 2007, Shape optimization of tooth profile of a flexspline for a harmonic drive by finite element modeling, Materials and Design, 28, 441-447.
12.
Kikuchi M., Nitta R., Kiyosawa Y., Zhang X.Y., 2003, Stress analysis of cup type strain wave gearing, Key Engineering Materials, 243-244, 129-134.
13.
Kleiber M., Zacharski A., 1983, Effective nonlinear analysis of arbitrary thin shells by simple finite elements, Mechanika Teoretyczna i Stosowana, 21, 1, 25-46.
14.
Li S., 2016, Diaphragm stress analysis and fatigue strength evaluation of the flex-spline, a very thin-walled spur gear used in the strain wave gearing, Mechanism and Machine Theory, 104, 1-16.
15.
Mijał M., 1996, Harmonic hermetic drive (in Polish), Proceedings of Seminar – Special Mechanical Gears, IPBM University of Warsaw, 105-110.
16.
Mijał M., 1999, Synthesis of Harmonic Drives (in Polish), Publishing House of the Technical University of Rzeszow, Rzeszow.
17.
Mijał M., Pacana J., 2004, Hermetic harmonic gear drive with welded flexspline,Western Center of the Ukrainian Academy of Transport, 11, 160-162.
20.
Ostapski W., 2011, Harmonic Drive (in Polish), Publishing House of the Warsaw University of Technology, Warsaw.
21.
Pacana J., 2018, Strength Analysis for Gear Transmissions Using FEM (in Polish), Publishing House of the Technical University of Rzeszow, Rzeszow.
22.
Pacana J., Budzik G., 2008, Analysis of the correctness FEM solution depending on the type and number of finite elements used (in Polish), Acta Mechanica Slovaca, 12, 3-A, 327-332.
23.
Pacana J., Markowska O., 2016, The analysis of the kinematic accuracy of the actual harmonic drive on a test bench, Advances in Manufacturing Science and Technology, 1, 47-54.
24.
PN-79/N-88514 Reduktory zębate ogólnego przeznaczenia – nazwy i określenia (General purpose gear reducers – names and definitions).
25.
Tjahjowidodo T., Al-Bender F., Van Brussel H., 2013, Theoretical modelling and experimental identification of nonlinear torsional behaviour in harmonic drives, Mechatronics, 23, 497-504.
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