FEM analysis of the options of using composite materials in flexsplines

• Autorzy: Folęga P.
• Języki publikacji: PL

Abstrakty

EN

Purpose: In the present study, as the structural material for toothed flexsplines of harmonic drivers, a composite material based on an epoxy resin matrix reinforced with glass or carbon fibres was used. A preliminary numerical analysis of the material and structural solutions for the harmonic driver flexsplines assumed to be applied was conducted. Design/methodology/approach: Under the studies performed, geometrical models of flexsplines being manufactured for the HFUC and HFUS type harmonic drivers were developed based on their actual structures and geometrical dimensions. In order to enhance the data preparation process, the model geometry was recorded in a parametrical form. By altering the individual properties of the models, it is possible to automatically generate finite element grids for flexsplines of various geometrical and structural properties. The calculations prepared for the sake of the study by application of the finite element method (FEM) were conducted using the MSC Patran/Nastran and Femap/NX Nastran software. Findings: Using composite materials in production of flexsplines enables increasing the values of their fundamental vibration frequencies. Using composite materials based on an epoxy resin matrix reinforced with glass fibres causes an increase of the fundamental frequency values by ca. 20%, and if the reinforcement is made with carbon fibres, the values increase by up to 35% compared to flexsplines made of steel. Research limitations/implications: The technological problem involved in production of flexsplines from composite materials comprises the difficulties related to manufacturing of their rim teeth. A solution to this problem may be fabrication of steel-composite flexsplines. Originality/value: The results discussed apply to application of new structural (composite) materials for harmonic driver flexsplines that are currently manufactured using alloy steels assumed to be quenched and tempered.

Słowa kluczowe

EN

composite materials; flexspline; harmonic drive; finite element method

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2011
• Tom: Vol. 51, nr 1
• Strony: 55--60
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Folęga P.

• Faculty of Transport, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland,

Bibliografia

• [1] General Catalogue Harmonic Drive AG, 05.2009.
• [2] M. Mijał, Synthesis of toothed harmonic drive, Rzeszów University of Technology Publishing House, 1999 (in Polish).
• [3] K.S. Jeong, D.G. Lee, Development of the composite flexspline for a cycloid-type harmonic drive using net shape manufacturing method, Composite Structures 32 (1995) 557-565.
• [4] P. Folęga, Use composite materials of flexspline of harmonic drive, Transport Problems 1/1 (2006) 127-132.
• [5] P. Folęga, R. Burdzik, T. Węgrzyn, A.P. Silva, Using new materials for flexsplines of harmonic drive, Proceedings of the 5th Engineering Conference “Engineering’ 2009 – Innovation and Development”, Covilh? – Portugal, 2009.
• [6] S.A. Suvalov, V.N. Gorelov, Stress in the flexible gear by finite element method, Soviet Engineering Research 3 (1983) 9-11.
• [7] V.A. Toropičjin, Stress-deformation analysis of the flexible gear of harmonic drive by finite element method, Soviet Engineering Research 2 (1988) 17-21.
• [8] P. Folęga, A. Wilk, The selection construction feature of harmonic gear drive flexspline with FEM, Overview of Mechanical Engineering 10 (2002) 31-35 (in Polish).
• [9] P. Folęga, A. Wilk, Numerical analysis of flexspline with gap contact elements, Scientific Books of the Silesian Technical University, Series of Transport 41 (2000) 35-42 (in Polish).
• [10] O. Kayabasi, F. Erzincanli, Shape optimization of tooth profile of a flexspline for a harmonic drive by finite element modelling, Materials and Design 28 (2005) 441-447.
• [11] L.A. Dobrzański, A.J. Nowak, W. Błażejewski, R. Rybczyński, Non-standard test methods for long-fibrous reinforced composite materials, Archives of Materials Science and Engineering 47/1 (2011) 5-10.
• [12] D. Kwiatkowski, J. Nabiałek, A. Gnatowski, The examination of the structure of PP composites with the glass fibre, Archives of Materials Science and Engineering 28/7 (2007) 405-408.
• [13] B. Oleksiak, G. Siwiec, A. Blacha, J. Lipart, Influence of iron on the surface tension of copper, Archives of Materials Science and Engineering 44/1 (2010) 39-42.
• [14] J. Łabaj, G. Siwiec, B. Oleksiak, Surface tension of expanded slag from steel manufacturing in electrical furnace, Metalurgija 50/3 (2011) 209-211.
• [15] J. Wieczorek, J. Łabaj, G. Siwiec, B. Oleksiak, Properties of polymer composites reinforced of silver particles, Proceedings of the European Congress “Advanced Materials and Processes” Euromat 2011, Montpellier, France, 2011.
• [16] P. Folęga, The steel-composite flexsplines of harmonic drive, Composites 10/4 (2010) 356-361 (in Polish).