Calculation and modelling of heat transfer mechanisms between machine components (B02)

• Subject Area: Thermodynamics and Kinetics as well as Properties of Phases and Microstructure of Materials
• Term: from 2011 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 174223256

The focus of subproject B02 is the numerical and experimental quantification of heat transfer between machine components. Heat transfer acts as a thermal boundary condition, thereby influencing the thermal behavior of machine tools. The first and second funding period aimed at the development of models for predicting heat transfer at static as well as moving machine interfaces and time dependent contact pressure. Furthermore, the impact of interstitial fluid on the heat transfer was investigated.For the scope of the third funding period, methods derived from generic test cases will be enhanced for the investigation of applied scenarios, focusing on three dimensional geometries with limited optical access and moving thermal boundary conditions as they for example occur in bearings. Furthermore, the effect of cooling lubricant on machine tools is investigated using multiphase CFD methods. With these methods, time and spatially resolved heat transfer coefficients at the tool, chip and workpiece can be quantified.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 96: Thermo-Energetic Design of Machine Tools - A Systemic Approach to Solve the Conflict between Power Efficiency, Accuracy and Productivity Demonstrated at the Example of Machining Production
• Applicant Institution: Technische Universität Dresden
• Project Head: Professor Dr.-Ing. Reinhold Kneer