用Harris-Hok/Nelder-Mead和微扰法识别和评价静电驱动谐振气体传感器中的裂纹

IF 2.1 3区 工程技术 Q2 ENGINEERING, CIVIL Smart Structures and Systems Pub Date : 2021-07-01 DOI:10.12989/SSS.2021.28.1.121
B. Firouzi, A. Abbasi, P. Şendur
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引用次数: 4

摘要

在本文中,我们研究了静电驱动的裂解气传感器的静态偏转、固有频率和一次谐振。此外,提出了一种新的混合元启发式算法来检测微悬臂梁系统上可能裂纹的位置和深度。气体传感器配置由一端连接有刚性板的微悬臂梁组成。在数学模型中考虑了静电力和边缘场的非线性效应。裂纹由旋转弹簧表示。在第一部分中,研究了裂纹对静态和动态拉入失稳的影响。应用摄动方法求解运动方程。接下来,提出了一个反问题来预测气体传感器中裂纹的位置和深度。为此,分析和预测频率响应的加权平方差被视为目标函数。微系统中裂纹的位置和深度是使用Harris-Hawk和Nelder-Mead混合优化算法确定的。将所提出的算法与HHO、DA、GOA和WOA算法的精度和效率进行了比较。采用田口设计实验的方法,对优化算法的参数进行了系统的调整。结果表明,该算法能够准确预测具有验证质量的静电驱动微束上开口边缘裂纹的位置和深度。
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Identification and evaluation of cracks in electrostatically actuated resonant gas sensors using Harris Hawk / Nelder Mead and perturbation methods
In this paper we study the static deflection, natural frequency, primary resonance of an electrostatically actuated cracked gas sensor. Besides, a novel hybrid metaheuristic algorithm is proposed to detect the location and depth of possible crack on the microcantilever systems. The gas sensor configuration consists of a microcantilever with a rigid plate attached to its end. The nonlinear effects of the electrostatic force and fringing field are taken into account in the mathematical model. The crack is represented by a rotational spring. In the first part, the effect of crack on the static and dynamic pull-in instability are studied. The equations of motion are solved by the application of the perturbation methods. Next, an inverse problem is formulated to predict the location and depth of the crack in the gas sensor. For that purpose, the weighted squared difference of the analytical and predicted frequency response is considered as the objective function. The location and depth of the crack in the microsystem are determined using the hybrid Harris Hawk and Nelder Mead optimization algorithms. The accuracy and efficiency of the proposed algorithm are compared with the HHO, DA, GOA, and WOA algorithms. Taguchi design of experiments method is used in order to tune the parameters of optimization algorithms systematically. It is shown that the proposed algorithm can predict the exact location and depth of the open-edge crack on an electrostatically actuated microbeam with proof mass.
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来源期刊
Smart Structures and Systems
Smart Structures and Systems 工程技术-工程:机械
CiteScore
6.50
自引率
8.60%
发文量
0
审稿时长
9 months
期刊介绍: An International Journal of Mechatronics, Sensors, Monitoring, Control, Diagnosis, and Management airns at providing a major publication channel for researchers in the general area of smart structures and systems. Typical subjects considered by the journal include: Sensors/Actuators(Materials/devices/ informatics/networking) Structural Health Monitoring and Control Diagnosis/Prognosis Life Cycle Engineering(planning/design/ maintenance/renewal) and related areas.
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