Calculation of upper support shafts cooling system parameters by means of the finite element method

Abstract

Problem. The paper proposes a method for solving the problem of the temperature regimes of the upper support shafts using the finite element method. Thus, using the experimentally obtained values of the cooling air flow of the shafts, the possibility of using the State Thermal module of the Ansys software for a multi-iteration study of the temperature distribution and determining the ranges of thermal expansion was considered. It is an important task during engineering tasks solution. Goal. The goal of the paper is to develop a methodology to solve thermal exchange tasks using FEA methods based on the experiment research of the thermal processes. Methodology. Solution of the tasks involved application of the theoretical approach in order to build up multi-purpose solid models with the range of initial data to provide a simulation research. Results. The proposed method allows to determine the efficiency of the cooling system in a wide range of changes in air flow parameters and the compliance of the established thermal clearances of the bearing assemblies. Originality. Engineering tasks of the denoted area are rarely solved with FEA, especially thermal package. Thus, implementation of the software with experimental research kit allows in timely manner check the thermal state of the shafts and indicate possible cooling air leaks at the very first stage to avoid time consuming technical service. Practical value. The use of the denoted methodology allows to adjust cooling system in terms of sufficient shaft thermal state of bearing clearances and keep updated cooling parameters to maneuver the main ventilation system.