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The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are:
- Physics and mechanics of electromagnetic materials and devices
- Computational electromagnetic in materials and devices
- Applications of electromagnetic fields and forces
The three interrelated key subjects - materials, electromagnetics and mechanics - include the following aspects: control, micromachines, intelligent structure, inverse problem, eddy current analysis, electromagnetic NDE, magnetic materials, magnetoelastic effects in materials, bioelectromagnetics, magnetosolid mechanics, magnetic levitations, applied physics of superconductors, superconducting magnet technology, superconducting propulsion system, nuclear fusion reactor components and wave propagation in electromagnetic fields.
Authors: Wang, Tao | Zhang, Yunce | Ji, Daxiong
Article Type: Research Article
Abstract: This paper studies thermal modeling and parameter determination for a permanent magnet generator with built-in hydrostatic drive, which has some special thermal characteristics including being cooled by circulating hydraulic oil and being filled with leaked hydraulic oil. To predict its temperature, a thermal model is developed by analyzing thermal sources and heat transfer paths and reasonably simplified based on empirical analysis. Then system identification is implemented to determine the model’s main parameters such as thermal resistances and thermal capacitances. The variations of heat transfer coefficients due to rotational speed and oil viscosity are taken into consideration through theoretical correction. Finally, …comparisons between calculated results and experimental results under different load conditions are presented to verify the effectiveness of the thermal model. The effects of ambient temperature and input oil temperature on the temperature rise are also investigated based on the model. This study can also provide reference to the temperature estimation of those similar machines filled with liquid. Show more
Keywords: Heat transfer, parameter estimation, permanent magnet generators, thermal model
DOI: 10.3233/JAE-180005
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 60, no. 1, pp. 131-144, 2019
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