Original scientific paper

Numerical and experimental analysis of the cycloid disc stress state

Mirko Blagojevic orcid.org/0000-0002-0209-5010 ; Faculty of Engineering, University of Kragujevac, S. Janjić 6, RS-34000 Kragujevac, Serbia
Nenad Marjanovic orcid.org/0000-0002-8441-4328 ; Faculty of Engineering, University of Kragujevac, S. Janjić 6, RS-34000 Kragujevac, Serbia
Zorica Djordjevic ; Faculty of Engineering, University of Kragujevac, S. Janjić 6, RS-34000 Kragujevac, Serbia
Blaza Stojanovic orcid.org/0000-0003-4790-2856 ; Faculty of Engineering, University of Kragujevac, S. Janjić 6, RS-34000 Kragujevac, Serbia
Vesna Marjanovic orcid.org/0000-0001-6266-5540 ; Faculty of Engineering, University of Kragujevac, S. Janjić 6, RS-34000 Kragujevac, Serbia
Rodoljub Vujanac ; Faculty of Engineering, University of Kragujevac, S. Janjić 6, RS-34000 Kragujevac, Serbia
Aleksandar Disic ; Faculty of Engineering, University of Kragujevac, S. Janjić 6, RS-34000 Kragujevac, Serbia

Abstract

The paper deals with the stress state analysis of the cycloid disc by using numerical and experimental methods for the most critical case of the meshing - single meshing. Cycloid disc is the vital element of the cycloidal speed reducer - mechanical power transmission of the new generation with growing use in industrial practice. 3D computer model of one specific one-stage cycloidal speed reducer was made. After that, the whole series of different numerical models of the cycloid disc were defined in FEMAP and NASTRAN, in order to determine the most realistic stress state by using FEM. In order to verify the results obtained by numerical methods, experimental analysis was realised using the strain gauges method. Physical model of the cycloid disc was made and also models of other elements of the cycloidal speed reducer which are in direct contact with it, in order to obtain the most realistic conditions for the experimental analysis. Obtained experimental results showed good agreement with numerical results. Even for the most unfavourable case of the theoretical meshing (single meshing), which is almost non-existent in practice, stress values are in allowed limits and provide reliable functioning of the reducer in the foreseen work life period.

Keywords

cycloid disc; cycloidal speed reducer; experimental analysis; numerical analysis

Hrčak ID:

120391

URI

https://hrcak.srce.hr/120391

Publication date:

26.4.2014.

Article data in other languages: croatian

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