Simulation-based investigation for heat transfer behavior of steel reinforcements in concrete machine frames and their thermal effects

• Autorzy: Glänzel Janine , Geist Alexander , Ihlenfeldt Steffen

Identyfikatory

DOI

10.5604/01.3001.0013.4077

• Języki publikacji: EN

Abstrakty

EN

The determination of the thermal-elastic behavior is one of the main aspects in the design phase of new machine frames. Prototypically simulation models are used for preliminary investigations, which are based on finite element approaches and usually work with simplified material laws. By the manufacturing of machine frames of concrete steel reinforcements are used to ensure the operation reliability due to the high sensitivity of concrete to tensile stresses. Because of different thermal conductivity and specific heat capacity of steel and concrete the reinforcement has a not negligible influence on the total thermal behavior of the system, which cannot be covered with conventional material laws, e.g. from material libraries. Preliminary investigations show, that a volume fraction more than 1 % of the reinforcement of the total volume can cause a relative error up to ten percent in the temperature field. To reflect the real behavior of reinforced concrete for a machine bed, the influence should be exanimated for two different approaches. Next to the real illustration of the geometry of the reinforcement in the FE-model, decoupled simulation approaches are used on reduced models, which should approach numerically the material behavior of the reinforcement.

Słowa kluczowe

EN

finite element method; reinforced concrete; thermal solid simulation; temperature field

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2019
• Tom: Vol. 19, No. 3
• Strony: 17--30
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Glänzel Janine

• Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Germany

autor

Geist Alexander

• Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Germany

autor

Ihlenfeldt Steffen

• Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Germany
• Dresden University of Technology TUD, Dresden, Germany

Bibliografia

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• [2] GROSSMANN K., et. al., 2015, Thermo-energetic design of machine tools, Lecture Notes in Production Engineering, Springer.
• [3] DROSSEL W.-G., WITTSTOCK V., REGEL J., RICHTER C., NOFFKE F., 2014, Auswirkungen lokaler Erwärmung von Mineralguss, wt Werkstattstechnik Online, 104/9, 602–607.
• [4] NEUGEBAUER R., DROSSEL W.G., IHLENFELDT S., NESTMANN S., RICHTER C., 2012, Inherent thermal error compensation of machine tool structures with graded mineral casting, International Conference on Machine Tools, Automation, Technology and Robotics. Prag, Czech Republic.
• [5] WEBER J., GLÄNZEL J., POPKEN J., SHABI L., WEBER J., 2018, Combined and Fast Computable Thermal Models for Situationally Optimal Tempering of Machine Components, Institute of Fluid Power, TU Dresden, Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz.
• [6] HELLMICH A., GLÄNZEL J., IHLENFELDT S., 2018, Methods for Analyzing and Optimizing the Fluidic Tempering of Machine Tool Beds of High Performance Concrete, CIRP Conference on Thermal Issues in Machine Tools, Dresden.
• [7] SCHNEIDER M., 2013, Das „intelligente“ Mineralgussbett, VDI-Z Integrierte Produktion, 155/3.
• [8] DMG MORI SEIKI Schweiz AG, 2013, Mehr Präzision für den Werkzeug- und Formenbau, Technische Rundschau, KW 9.
• [9] JUNG M., LANGER U., 2001, Methode der finite Elemente für Ingenieure: Einführung in die numerische Grundlagen und Computersimulation, TEUBNER – Stuttgart, Leipzig, Wiesbaden.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).