{"title":"提高旋转圆柱形智能传感器的湿热弹性性能","authors":"A. M. Eldeeb, Y. M. Shabana, A. Elsawaf","doi":"10.1007/s13369-023-08322-6","DOIUrl":null,"url":null,"abstract":"Abstract The goal of this research article is to investigate the effects of using two-dimensional functionally graded materials on the performance of piezoelectric sensors/actuators when subjected to simultaneous complex loading conditions. The considered disc-shaped sensors/actuators have nonuniform thicknesses and undergo asymmetric hygro-thermo-electro-mechanical loading. A power-law model is used to grade the materials radially, whereas the cosine function, which includes two independent parameters, describes the pattern along the circumferential direction. Comparing the results obtained by using the finite element method with those of one-dimensional graded structures leads to promising outcomes. For example, the radial displacement exhibits vital changes that varied between $$-13$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>13</mml:mn> </mml:mrow> </mml:math> and $$31\\%$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:mn>31</mml:mn> <mml:mo>%</mml:mo> </mml:mrow> </mml:math> . This is beneficial for such structures in terms of enhancing their sensing/actuating abilities. Also, the tangential stress can be reduced substantially by about $$39.5\\%$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:mn>39.5</mml:mn> <mml:mo>%</mml:mo> </mml:mrow> </mml:math> through the proper selection of the corresponding material parameters. In addition, this reduction of the tangential stress has a positive effect on the von Mises stress that can be decreased by nearly $$33\\%$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:mn>33</mml:mn> <mml:mo>%</mml:mo> </mml:mrow> </mml:math> . Accordingly, the structure would have improved durability and sustain higher loads. These findings would revolutionize the manufacturing of smart structures and enhance their behaviors under severe conditions.","PeriodicalId":54354,"journal":{"name":"Arabian Journal for Science and Engineering","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancement of the Hygrothermoelastic Performance of Rotating Cylindrical Smart Sensors\",\"authors\":\"A. M. Eldeeb, Y. M. Shabana, A. 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For example, the radial displacement exhibits vital changes that varied between $$-13$$ <mml:math xmlns:mml=\\\"http://www.w3.org/1998/Math/MathML\\\"> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>13</mml:mn> </mml:mrow> </mml:math> and $$31\\\\%$$ <mml:math xmlns:mml=\\\"http://www.w3.org/1998/Math/MathML\\\"> <mml:mrow> <mml:mn>31</mml:mn> <mml:mo>%</mml:mo> </mml:mrow> </mml:math> . This is beneficial for such structures in terms of enhancing their sensing/actuating abilities. Also, the tangential stress can be reduced substantially by about $$39.5\\\\%$$ <mml:math xmlns:mml=\\\"http://www.w3.org/1998/Math/MathML\\\"> <mml:mrow> <mml:mn>39.5</mml:mn> <mml:mo>%</mml:mo> </mml:mrow> </mml:math> through the proper selection of the corresponding material parameters. In addition, this reduction of the tangential stress has a positive effect on the von Mises stress that can be decreased by nearly $$33\\\\%$$ <mml:math xmlns:mml=\\\"http://www.w3.org/1998/Math/MathML\\\"> <mml:mrow> <mml:mn>33</mml:mn> <mml:mo>%</mml:mo> </mml:mrow> </mml:math> . Accordingly, the structure would have improved durability and sustain higher loads. 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引用次数: 0
摘要
摘要:本研究的目的是研究在复杂加载条件下,使用二维功能梯度材料对压电传感器/执行器性能的影响。考虑的圆盘形传感器/执行器具有不均匀的厚度和不对称的湿热机电负载。幂律模型用于径向对材料进行分级,而包含两个独立参数的余弦函数则描述沿周向的模式。将有限元法得到的结果与一维梯度结构的结果进行比较,得到了令人满意的结果。例如,径向位移在$$-13$$ - 13和$$31\%$$ - 31之间表现出重要的变化 % . This is beneficial for such structures in terms of enhancing their sensing/actuating abilities. Also, the tangential stress can be reduced substantially by about $$39.5\%$$ 39.5 % through the proper selection of the corresponding material parameters. In addition, this reduction of the tangential stress has a positive effect on the von Mises stress that can be decreased by nearly $$33\%$$ 33 % . Accordingly, the structure would have improved durability and sustain higher loads. These findings would revolutionize the manufacturing of smart structures and enhance their behaviors under severe conditions.
Enhancement of the Hygrothermoelastic Performance of Rotating Cylindrical Smart Sensors
Abstract The goal of this research article is to investigate the effects of using two-dimensional functionally graded materials on the performance of piezoelectric sensors/actuators when subjected to simultaneous complex loading conditions. The considered disc-shaped sensors/actuators have nonuniform thicknesses and undergo asymmetric hygro-thermo-electro-mechanical loading. A power-law model is used to grade the materials radially, whereas the cosine function, which includes two independent parameters, describes the pattern along the circumferential direction. Comparing the results obtained by using the finite element method with those of one-dimensional graded structures leads to promising outcomes. For example, the radial displacement exhibits vital changes that varied between $$-13$$ -13 and $$31\%$$ 31% . This is beneficial for such structures in terms of enhancing their sensing/actuating abilities. Also, the tangential stress can be reduced substantially by about $$39.5\%$$ 39.5% through the proper selection of the corresponding material parameters. In addition, this reduction of the tangential stress has a positive effect on the von Mises stress that can be decreased by nearly $$33\%$$ 33% . Accordingly, the structure would have improved durability and sustain higher loads. These findings would revolutionize the manufacturing of smart structures and enhance their behaviors under severe conditions.
期刊介绍:
King Fahd University of Petroleum & Minerals (KFUPM) partnered with Springer to publish the Arabian Journal for Science and Engineering (AJSE).
AJSE, which has been published by KFUPM since 1975, is a recognized national, regional and international journal that provides a great opportunity for the dissemination of research advances from the Kingdom of Saudi Arabia, MENA and the world.