Calculation of Effective Permittivity and Optimization of Absorption Property of Honeycomb Cores with Absorbing Coatings
| العنوان: | Calculation of Effective Permittivity and Optimization of Absorption Property of Honeycomb Cores with Absorbing Coatings |
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| المؤلفون: | Zhang Weihong, Feng Shuqi, Chen Wu, Kepeng Qiu, Zijun Liu |
| المصدر: | Medžiagotyra, Vol 22, Iss 3, Pp 317-322 (2016) |
| بيانات النشر: | Kaunas University of Technology (KTU), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | lcsh:TN1-997, Permittivity, Materials science, Optimization problem, effective permittivity, 02 engineering and technology, honeycomb cores, absorbing coatings, effective permittivity, absorption property, Upper and lower bounds, Optics, Dispersion (optics), 0202 electrical engineering, electronic engineering, information engineering, Honeycomb, General Materials Science, Absorption (electromagnetic radiation), absorption property, lcsh:Mining engineering. Metallurgy, Computer simulation, business.industry, 020206 networking & telecommunications, 021001 nanoscience & nanotechnology, Computational physics, honeycomb cores, Volume fraction, absorbing coatings, 0210 nano-technology, business |
| الوصف: | This paper focuses on the honeycomb cores with absorbing coatings, the effective permittivity is predicted and the absorption property is optimized. The correctness of effective results is verified by experimental measurement, numerical simulation and theoretical analysis. When honeycomb cores with absorbing coatings are regarded as layered multi-phase materials, the upper and lower bounds of effective permittivity are calculated by the way of multi-step equivalence. In order to exhibit the dispersion effect, the improved strong fluctuation theory is proposed. In the second part of works, the size optimization is executed to improve absorption property. The optimization problem is defined that the area T which is surrounded by the effective reflectivity curve and the boundary line (R0 = -10 dB) is maximized under the upper bound constraints of reflectivity and volume fraction. The optimal effective reflectivity curve is obtained within the given frequency range.DOI: http://dx.doi.org/10.5755/j01.ms.22.3.8456 |
| تدمد: | 2029-7289 1392-1320 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07d69461a30f312b118b3758d4135dd1 https://doi.org/10.5755/j01.ms.22.3.8456 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....07d69461a30f312b118b3758d4135dd1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20297289 13921320 |
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