Title :
Finite element modelling of thermal contact resistances and insulation layers in electrical machines
Author :
Driesen, Johan ; Belmans, Ronnie ; Hameyer, Kay
Author_Institution :
Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium
Abstract :
Small transition layers with a significant temperature drop, such as thermal contact resistances and thin insulation layers, are difficult to represent in thermal finite element models of electrical machines. A new approach using mesh cuts and duplicated nodes at the thin layer position is derived and discussed. Practical examples demonstrate the features of the methods used
Keywords :
contact resistance; electric machines; finite element analysis; machine insulation; machine theory; thermal analysis; duplicated nodes; eddy currents; electrical machines; electrothermal effects; finite element modelling; insulation layers; mesh cuts; temperature drop; thermal contact resistances; thermal finite element models; thin layer position; thin layer thermal boundaries; Conducting materials; Contact resistance; Dielectrics and electrical insulation; Finite element methods; Iron; Magnets; Shafts; Stators; Temperature dependence; Thermal resistance;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769077
