Article
Engineering, Aerospace
Dimitris Varelis, Dimitris A. Saravanos
Summary: This paper investigates the nonlinear electromechanical response of shallow piezoelectric laminated shells under mechanical pressure loads, predicting the transition between stable and unstable states using a coupled nonlinear mechanics model. The results demonstrate the predictive capability and complexity of the electromechanical behavior of the shells.
AEROSPACE SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Juan-Nan Chen, Qian Wang, Xian Zhao, Chun-Ming Wang
Summary: Significantly enhanced dc electrical resistivity and piezoelectric properties of bismuth layer-structured ferroelectric calcium bismuth niobate (CBN) were achieved through compositional adjustment with rare-earth element Tb ions. The Tb-modified CBN exhibited a high dc electrical resistivity and enhanced piezoelectric properties, making it a promising material for high-temperature piezoelectric applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Mechanics
Hamidreza Esmaeili, Hadi Arvin, Walter Lacarbonara
Summary: The nonlinear forced response of multilayer piezoelectric cantilever microbeams reinforced by carbon nanotubes with a concentrated tip mass is investigated using geometrically exact formulation and multiple scales approach. The effects of carbon nanotubes volume fraction, tip mass, and force amplitude on the frequency response of the system are highlighted, showing the feasibility of the second mode for mass sensing purposes.
COMPOSITE STRUCTURES
(2021)
Article
Physics, Applied
Weimin Chen, Wenbin Xiang, Chunzheng Bai, Baohua Zhu, Bing Gu, Changgui Lv, Jiayu Zhang
Summary: Amorphous GeSe films were prepared by vacuum thermal evaporation and exhibited polycrystalline phase after annealing. The films showed reverse saturable absorption and self-focusing phenomenon. The annealed recrystallized GeSe films had significantly improved nonlinear optical parameters and potential applications in optical limiting devices.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Mechanical
Danilo Karlicic, Milan Cajic, Stepa Paunovic, Sondipon Adhikari
Summary: An efficient semi-numerical framework is used to analyze the dynamic model of an axially moving beam with a nonlinear attachment, consisting of a nonlinear energy sink and a piezoelectric device. The governing equations are derived using Hamilton's principle and other methods, with further modeling and frequency response curve analysis of the system.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Mechanical
Sayyid H. Hashemi Kachapi
Summary: In this study, the surface/interface energy effects on the pull-in instability analysis of piezoelectric nanosensors (PENS) under nonlinear electrostatic excitation and harmonic force were investigated using the Gurtin-Murdoch (GM) surface/interface energy approach. Various methods such as Hamilton's approach, assumed mode and Lagrange-Euler's theories, arc-length continuation, and complex averaging methods were employed to analyze the influences of surface/interface parameters on the pull-in instability voltage.
FACTA UNIVERSITATIS-SERIES MECHANICAL ENGINEERING
(2023)
Article
Thermodynamics
S. M. Osinaga, S. P. Machado, M. Febbo
Summary: This paper studies the influence of nonlinear constitutive piezoelectric parameters on the electromechanical coupled response of a clamped-clamped axially loaded energy harvester. The partial differential equations governing the problem are derived using Hamilton's principle and discretized using the Galerkin method. An approximated solution for the single mode representation is obtained using the Method of Multiple Scales (MMS) and compared with direct numerical integration, showing excellent results. Experimental testing of a prototype device confirms the need to consider nonlinear piezoelectric relationships for accurate voltage prediction.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Materials Science, Multidisciplinary
Tran Quoc Quan, Vu Minh Anh, Vinyas Mahesh, Nguyen Dinh Duc
Summary: This article investigates the vibration and nonlinear dynamic response of imperfect advanced sandwich nanocomposite plate subjected to uniformly distributed pressure using fourth-order Runge-Kutta and Galerkin methods. The effects of geometrical dimensions, layer thickness, imperfections, and mechanical loads on the nonlinear dynamic response and natural frequency of advanced multilayer nanocomposite plates are discussed through detailed parametric studies. The accuracy of the results is validated by comparing them with others from the literature.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Mechanics
Xianghua Chen, Suxin Pan, Qun Li
Summary: In this paper, a nonlinear damage evolution FE model and its acceleration program are proposed to simulate the nonlinear damage evolution of piezoelectric materials and structures under high electric fatigue load. The effectiveness of the model is verified through comparison with experimental results, providing a reliable reference for the life prediction and application of piezoelectric structures and devices.
ENGINEERING FRACTURE MECHANICS
(2022)
Review
Nanoscience & Nanotechnology
Xiaoqian Wan, Honglian Cong, Gaoming Jiang, Xinhua Liang, Lu Liu, Haijun He
Summary: Textiles are becoming an ideal platform for next-generation sensing due to their breathability, softness, and structural elasticity. This paper mainly reviews the development of PVDF-based textiles in flexible piezoelectric sensors, which are widely used in wearable applications for long-term sensing and monitoring.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
M. Arjun Hari, Subash Cherumannil Karumuthil, Lintu Rajan
Summary: This comparative analysis explores the performance improvement of PVDF-based piezoelectric tactile sensors through the addition of different nanofillers. Nanoparticles such as zinc oxide, titanium dioxide, and nanosilica were incorporated into PVDF composites to enhance their electrical, thermal, and mechanical properties. The results showed that the addition of nanofillers led to faster crystallization and stronger interfacial interactions, resulting in the formation of piezoelectric PVDF composites with enriched sensitivity. The fabricated sensors exhibited improved piezoelectric performance, with zinc oxide-incorporated devices showing the highest observed sensitivity of 103 mV/N. Tactile sensors based on these nanocomposites were developed using cost-effective fabrication mechanisms for potential use in prosthetic devices.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Physical
Weng Fu Io, Man-Chung Wong, Sin-Yi Pang, Yuqian Zhao, Ran Ding, Feng Guo, Jianhua Hao
Summary: Piezoelectricity in 2D materials has great potential, but most of the discovered 2D layered piezoelectric materials only possess in-plane piezoelectricity, limiting their integration with rigid substrates. CuInP2S6 is a promising 2D material with excellent properties, including out-of-plane ferroelectricity and high stability at room temperature. However, research on the piezoelectric effect and its application in 2D CuInP2S6 is still in the early stage.
Review
Materials Science, Multidisciplinary
Francis Owusu, Thulasinath Raman Venkatesan, Frank A. Nueesch, Ricardo Martin Negri, Dorina M. Opris
Summary: Piezoelectrics are important in modern electronics and electric devices, but integrating them into flexible wearable electronics has been a challenge. Researchers have been focusing on developing piezoelectric materials with improved properties to overcome this limitation. This review summarizes the recent developments in the field of piezoelectric elastomers and discusses their potential applications in sensors and energy harvesting.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Yulong Chen, Ziao Tian, Xiang Wang, Nian Ran, Chen Wang, Anyang Cui, Huihui Lu, Miao Zhang, Zhongying Xue, Yongfeng Mei, Paul K. Chu, Jianjun Liu, Zhigao Hu, Zengfeng Di
Summary: Ternary TMDs alloy Mo1-xWxS2 with different W concentrations was synthesized to increase entropy and precisely control piezoelectric properties. Mo0.46W0.54S2 alloy showed the highest configurational entropy and best piezoelectric properties, suitable for self-powered applications and real-time health monitoring.
ADVANCED MATERIALS
(2022)
Article
Mechanics
Chien-hong Lin, Ying-Zhao Lin
Summary: Two micromechanical formulations were established for analyzing nonlinear magnetoelectric coupling in composite materials with different connectivities. The study showed that the magnetoelectric coupling in the composites can be modulated by the connectivity and constituent proportion, and the field-dependent magnetoelectric responses lead to significant differences between linear and nonlinear predictions.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Aerospace
Ehsan Omidi, S. Nima Mahmoodi, W. Steve Shepard
AEROSPACE SCIENCE AND TECHNOLOGY
(2015)
Article
Biochemistry & Molecular Biology
H. Babahosseini, B. Carmichael, J. S. Strobl, S. N. Mahmoodi, M. Agah
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2015)
Article
Mathematics, Applied
Ehsan Omidi, S. Nima Mahmoodi
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2015)
Article
Mechanics
Rachael McCarty, S. Nima Mahmoodi
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
(2015)
Article
Instruments & Instrumentation
Ehsan Omidi, S. Nima Mahmoodi
SMART MATERIALS AND STRUCTURES
(2015)
Article
Engineering, Mechanical
Ehsan Omidi, S. Nima Mahmoodi
ACTA MECHANICA SINICA
(2016)
Article
Automation & Control Systems
Ehsan Omidi, S. Nima Mahmoodi
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME
(2016)
Article
Acoustics
Ehsan Omidi, S. Nima Mahmoodi
JOURNAL OF SOUND AND VIBRATION
(2016)
Article
Automation & Control Systems
Ehsan Omidi, S. Nima Mahmoodi, W. Steve Shepard
Article
Acoustics
Ehsan Omidi, S. Nima Mahmoodi
JOURNAL OF VIBRATION AND CONTROL
(2016)
Article
Engineering, Mechanical
Ehsan Omidi, S. Nima Mahmoodi
NONLINEAR DYNAMICS
(2015)
Editorial Material
Materials Science, Multidisciplinary
Uwe Marschner, S. Nima Mahmoodi, Manuel Collet
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2019)
Proceedings Paper
Automation & Control Systems
Ehsan Omidi, S. Nima Mahmoodi
2015 AMERICAN CONTROL CONFERENCE (ACC)
(2015)
Article
Biochemistry & Molecular Biology
B. Carmichael, H. Babahosseini, S. N. Mahmoodi, M. Agah
Article
Acoustics
Ehsan Omidi, S. Nima Mahmoodi
JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
(2015)
Article
Engineering, Electrical & Electronic
Kehao Feng, Zhenghua Zhang, Guohua Bai, Xiuyuan Fan, Rongzhi Zhao, Xuefeng Zhang
Summary: This paper proposes a new method to accurately evaluate the high-frequency power loss of soft magnetic materials. Through a two-step calibration, the system is able to compensate for the phase angle discrepancy between the exciting current and induced voltage, enabling a higher power loss measurement frequency.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Mingfang Kang, Tong Liu, Hongmei Sun, Lin Li, Keliang Wang
Summary: In this study, the absorption performance of ambient nitrogenous toxic gases on a monolayer of blue phosphorus phase germanium selenide (GeSe) was investigated using density-functional theory calculations. The results showed that GeSe monolayer exhibits higher sensitivity and selectivity for the hazardous gas NO.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Yaqiong Niu, Zhicheng Zou, Longsheng Cheng, Chaofeng Ye
Summary: This paper proposes a novel method to stabilize the laser diode output using a close-loop control with two feedbacks. The proposed method performs better for long-time operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jiajie Li, Ying Liu, Zhen Chai, Qian Cao, Renjie Li, Yueyang Zhai
Summary: This study proposed an efficient and high-quality beam-splitting method based on a diffractive optical element, enabling multichannel SERF atomic magnetometers to achieve ultra-high consistency and sensitivity. It has significant applications in array biomagnetic measurement systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
E. Oliveira, C. Doering, H. Fouckhardt
Summary: With the development of Lab on a chip technology, fluid management using dispersed droplets has become an important approach. Electrowetting on dielectric (EWOD) is one method for droplet actuation, but it requires prior definition of droplet positions. Optoelectrowetting (OEW) goes further by allowing changes in electrical parameters through impinging light spots, without the need for predefined droplet positions. This study re-evaluates the key parameters of OEW and explores their effects on droplet actuation using numerical optimization methods.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Haipeng Wang, Zhiguo Wang, Gancheng Zhu, Shuai Zhang
Summary: A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Tsenguun Byambadorj, Xiangyu Zhao, Yutao Qin, Yogesh B. Gianchandani
Summary: In this research, a monolithically microfabricated Knudsen pump (KP) without suspended membranes was presented. These pumps offer improved mechanical robustness, wider process window, and simplified microfabrication process compared to previous designs. The experimental results matched the modeling results well, indicating the potential for monolithic integration onto complex lab-on-a-chip systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Hamed Karami, Saeed Karami Chemeh, Vahid Azizi, Hooman Sharifnasab, Jose Ramos, Mohammed Kamruzzaman
Summary: Aroma is a significant quality trait for pharmaceutical plants and their products, indicating the quality of the raw material. An electronic nose is an efficient approach for identifying and evaluating the aroma of essential oils. In this study, tarragon was dried at different temperatures and air velocities, and the purity of tarragon essential oil was evaluated using an electronic nose. Multivariate data analysis and artificial neural networks modeling were employed to quantify and classify the obtained essential oils.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Xiaoyang Duan, Dan Xu, Wenjun Jia, Ran Li, Bohao Sun, Ruitian Yan, Wenjie Zhao
Summary: Flower-like WO3/WS2 heterojunction materials constructed via a low-temperature in-situ oxidation method exhibit significant improvements in the detection of NO2 gas in gas sensors, along with good selectivity and reproducibility.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Peng Yu, Mengyang Zhang, Manqi You, Yuxi Gao, Landong Xiao, Yan Peng, Jingxia Lai, Zhouzhao Shi, Siwei Luo, Gencai Guo, Gang Guo
Summary: Recent studies have shown that two-dimensional Janus transition metal dichalcogenides (TMDs) have great potential for applications in gas sensors. By conducting first principles calculations, this study explores the potential application of Pd-doped monolayer HfSeS as gas sensor materials for detecting CO, CO2, NH3, and NO. The results demonstrate the good thermodynamical stability and reversible adsorption of these molecules on both pristine and Pd-doped HfSeS, with Pd-doped HfSeS showing higher sensitivity towards NO due to its metallic behavior upon NO adsorption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jinlan Yang, Linjiao Li, Jun Huang, Quan Zhang, Hiba Affane
Summary: This study proposes a method for large-scale aggregation of micro-particles by creating a vortex region using low-frequency oscillation. Experimental results show that this method can achieve a large aggregation area and has the advantages of low cost and low power consumption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Junyao Wang, Yahao Liu, Huan Liu, Qi Hou, Jianxin Xu, Hongxu Pan, Jingran Quan, Yansong Chen, Hanbo Yang, Lixiang Li
Summary: A flexible electrode with a serpentine-shaped tetra-chiral structure was designed to improve the mechanical properties and prevent mechanical fracture of flexible electrodes. The research demonstrated that this structure reduced the maximum tensile stress by 87.19% compared to the existing tetra-chiral structure. The flexible electrode remained conductive even at a strain of 70% and showed resistance values of 5 ohm and 4.4 ohm at a bending angle of 180 degrees and after 1000 fold cycles. Furthermore, the flexible electrodes showed great potential in biological signal monitoring, particularly in collecting ECG and pulse signals.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
M. S. Sikandar Bathusha, Israr Ud Din, Rehan Umer, Kamran A. Khan
Summary: Graphene-based nanomaterials are used as embedded sensors to monitor fracture behavior in composite structures. This study investigates the in-situ crack propagation and fracture behavior in a glass fiber reinforced polymer composite using embedded reduced graphene oxide coated fabrics and highly conductive graphene nanoplatelet paper.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)