کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9952767 1461820 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-heat generation of embedded piezoceramic patches used for fabrication of smart materials
ترجمه فارسی عنوان
تولید حرارت شخصی از پچ های پیزوکارامیک جاسازی شده که برای ساخت مواد هوشمند استفاده می شود
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
The use of smart materials, with embedded sensors and active actuators to provide real-time monitoring and controlling capabilities, has greatly increased in last decades. Piezoceramic flexible patches (PFPs) are particularly suitable for these applications due to their low thickness and intrusiveness. A critical point, when they are used as embedded actuators, is their self-heating, which can be a concern especially if structural materials with very low thermal conductivity such as plastic reinforced composites are considered. This paper aims to investigate such issue by examining three paradigmatic case studies: a) PFP in a “free” exposed to static air; b) PFP enclosed between two skins of polymeric material and c) PFP embedded into a glass fibre reinforced plastic (GFRP) composite panel. The main goal of the research has been to assess how the temperature, produced by self-heating of the piezo ceramic, is influenced by the surrounding material as the patch is enclosed or embedded into a structural element. A sensitivity analysis was performed to evaluate the effect on self-heating of either the amplitude or the frequency of the driven voltage. Moreover, a simple theoretical model, based on energies balance, has been derived in order to estimate the actual PFP temperature in both the b) and c) configurations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 280, 1 September 2018, Pages 513-520
نویسندگان
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