An Accurate Mesh Based Equivalent Circuit Approach to Thermal Modelling

Nick Simpson, Rafal Wrobel, Phil Mellor

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)


This paper presents a method of automatically constructing and parameterising accurate lumped parameter thermal equivalent circuits with nodes arranged in a regular mesh pattern. The approach exhibits a number of advantages over conventional lumped parameter thermal equivalent circuits including superior thermal field resolution, reduced model construction and setup times and more accurate identification of hot-spot temperatures and their location. The method serves as a desirable compromise between the fine detail and high computational cost of a full finite element analysis and the coarse detail and short solution times afforded by lumped parameter thermal equivalent circuits. The benefits of the method are demonstrated by the analysis and experimental test of a demonstration linear actuator.
Original languageEnglish
Title of host publication19th International Conference on the Computation of Electromagnetic Fields (Compumag 2013)
Number of pages2
Publication statusPublished - 4 Jul 2013


  • Mesh Based Equivalent Circuit
  • Thermal Modelling


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