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Journal articles on the topic 'Electromechanical Engineering – Department of Electromechanical Engineering'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Topalbekiroğlu, M., A. Kirecci, and L. Canan Dülger. "A Study of Weaving ‘Turkish Knots’ in Handmade Carpets with an Electromechanical System." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 219, no. 5 (2005): 343–47. http://dx.doi.org/10.1243/095965105x33482.

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To form a Turkish knot in a handmade carpet, a study for a computer-controlled prototype loom and its drive system has been presented. The mechanisms involved in the prototype are described separately and the design considerations for each mechanism are given with the function requirements needed. The control of the knotting system is achieved with the actuators applied. The research on the subject is still continuing at the Department of Textile Engineering, University of Gaziantep.

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2

Egan, I., J. M. Ritchie, and P. D. Gardiner. "Measuring performance change in the mechanical design process arena." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 219, no. 12 (2005): 851–63. http://dx.doi.org/10.1243/095440505x32724.

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Measurement of the design process is an issue facing business and academic practitioners alike. This paper outlines an approach used to formalize design process measurement within a large electromechanical original equipment manufacturer (OEM) by applying a derivation of the Carnegie-Mellon/Software Engineering Institute systems engineering capability maturity model(R) (SE-CMM(R)), entitled the process capability model-mechanical design (PCM-MD). This new model was created using a similar structure and format of questions as the SE-CMM(R), with modifications to suit mechanical engineering terminology. This was then applied to the mechanical engineering design department of the partner company where it was successfully piloted and then reapplied to produce a picture of how the effectiveness or otherwise of the processes associated with their multidisciplinary mechanical design function altered over time. This work provided the building blocks for further detailed studies to be carried out at other sites in the same company and within the mechanical engineering departments of other firms.

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3

Hayati, Raziye, Mohammad Ali Bahrevar, Yadolah Ganjkhanlou, Virginia Rojas, and Jurij Koruza. "Erratum to: Electromechanical properties of Ce-doped (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 lead-free piezoceramics." Journal of Advanced Ceramics 8, no. 4 (2019): 587. http://dx.doi.org/10.1007/s40145-019-0351-3.

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The affiliation of author “Raziye HAYATI” in the original version of this article was unfortunately wrongly written on page 186, instead of Semiconductor Division, Materials and Energy Research Center, Karaj 31787/316, Iran It should read Department of Materials Engineering, Yasouj University, Yasouj, 75918-74934, Iran

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Wang, Jiangyong, Fa Jing, Yongquan Xia, and Chunsheng Xu. "Study on Model-Based System Engineering in Satellite Layout." MATEC Web of Conferences 316 (2020): 04001. http://dx.doi.org/10.1051/matecconf/202031604001.

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For satellite layout, it is necessary to collate manually in order to obtain accurate product technical requirements information. It is difficult to track the technical status information. It is proposed that the application of model-based system engineering (MBSE) in the cooperative development of multi-disciplinary and multisectoral satellite layout was an effective way to solve these problems. Based on the four typical processes of layout design, this paper studied the requirements to occupancy design, electromechanical joint design, integration of Attitude and Orbit Control System (AOCS) equipment layout, definition and display of equipment expansion, and give the verification design of star sensor layout. The results show that this method is beneficial to the collaboration of all departments, and improve the design ability.

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5

Yao, Kai-Chao, Wei-Tzer Huang, Li-Chiou Hsu, Chin-Kun Yang, and Jian-Yuan Lai. "Evaluation of the Established IoT Smart Home Robot Teaching Module Based on Embedded Thematic-Approach Strategy." Mathematical Problems in Engineering 2020 (December 22, 2020): 1–10. http://dx.doi.org/10.1155/2020/6696155.

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Artificial intelligence (AI) technology–based intelligent robots are constructed using different technologies, such as Internet of Things (IoT), big data, deep learning, machine learning, neural network, and expert system. This particular type of robots can increase the work efficiency of humans and improve their quality of life. From the industry perspective, AI robots possess unlimited potential for development, and they are projected to be a 10-trillion-dollar industry. In this study, the critical technology of IoT is applied to develop a teaching module for an IoT smart home robot. Teaching and evaluation are performed through an embedded thematic-approach teaching strategy in the course named Automatic Measurement and Monitoring. This research aims to teach students how to integrate IoT technology into robot design and construction to build IoT smart home robots. This cross-disciplinary research incorporates emerging technology—integration of smart home, robot construction, and IoT technologies—into industrial education, teaching material and equipment development, and experimental teaching and evaluation. The participating students were juniors or seniors from the Department of Electrical Engineering or Electromechanical Engineering at the University of Technology.

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6

Mohammed, Jamal AK, Walaa M. Hashim, and Bahaa S. Beram. "Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism." Engineering and Technology Journal 38, no. 5A (2020): 748–60. http://dx.doi.org/10.30684/etj.v38i5a.367.

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An electro-hydraulic elevator is a new type of enhanced elevators that are used in low-rise buildings that do not exceed more than three floors. In this paper, an electro-hydraulic servo system for controlling the speed of a hydraulic elevator prototype by using a proportional valve and PID controller was investigated theoretically and experimentally. A three floors elevator prototype model with 76cm height was built including hydraulics components and electrical components. The elevator system is fully automated using the Arduino UNO board based Data Acquisition (DAQ) system. LabVIEW software is used to control the hydraulic elevator system through L298 DC drive via the DAQ board. The best PID gains was obtained experimentally. The elevator system prototype could be emplimented for educational purposes; such as learning the undergraduate students in the Electromechanical Engineering Department in the University of Technology how to structuring the electro-hydraulic elevator as well as the appropriate control strategy.

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7

Wysocki, Krzysztof. "Engineering support for the mobility of the Ground Forces of the Russian Federation." Scientific Journal of the Military University of Land Forces 199, no. 1 (2021): 137–54. http://dx.doi.org/10.5604/01.3001.0014.8116.

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The article addresses selected aspects of supporting the mobility of the Ground Forces in the Armed Forces of the Russian Federation. The experience of contemporary armed conflicts in which Russian forces were involved confirmed the need to maintain subunits, guaranteeing maneuver freedom in the area occupied by the enemy. The study aims to present explanations concerning: the role and tasks of the engineering troops of the Russian Federation in contemporary armed conflicts, characteristics of the currently used methods of performing mine barriers, namely mechanical, electromechanical, explosive, manual, and combined ones. Also, the essence of engineering activities according to the views adopted in the Armed Forces of the Russian Federation, the content of engineering support for mobility in tactical departments, and the interpretation of basic concepts, and the role of engineering units and subunits in the activities in question are presented. Besides, the executive potential of selected organizational and functional structures of engineering units, their purpose, and the possibility of implementing individual engineering tasks in tactical activities related to maneuvering and displacement are described. In the aspect of the issue of the impact of engineering barriers and destruction on the pace of the enemy’s attack, an analysis of the execution potential and tactics of operations (doctrinal patterns of combat operations) of a potential enemy (the other party and its capability of supporting the mobility of own troops in the implementation of engineering projects related to crossings (paving) in dams, through natural obstacles and areas of destruction as well as demining terrain and objects) was performed.

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8

Valenti, Michael. "Tilting Trains Shorten Transit Time." Mechanical Engineering 120, no. 06 (1998): 78–81. http://dx.doi.org/10.1115/1.1998-jun-6.

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This article explains the research work done to study and implement tilling trains. Tilting trains while negotiating curves reduce centrifugal force on passengers yet maintain fast speed on the ride. London-based Virgin Rail has signed one of the largest international railroad contracts ever for a fleet of tilting trains from Fiat Ferroviaria S.p.A. in Savigliano, Italy, to run on Great Britain's high-speed West Coast Main Line. Fiat engineers house the hydraulic or electromechanical actuators of the Pendolino trains in the bogies completely under the cars to preserve space in the passenger compartments. The latest generation of Pendolino train, the ETR 460, was introduced in 1993. This train carries up to 478 passengers at a top speed of 250 kilometers per hour. Each ETR 460 is made up of three traction units, each consisting of two motor cars and one trailer. The Washington State Department of Transportation uses Talgo pendular trains, to cut the travel times of passengers traveling in the Pacific Northwest.

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9

Papadopoulos, Theofilos, Emmanuel Tatakis, and Efthymios Koukoulis. "Improved Active and Reactive Control of a Small Wind Turbine System Connected to the Grid." Resources 8, no. 1 (2019): 54. http://dx.doi.org/10.3390/resources8010054.

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This paper deals with the interconnection of a small wind turbine with the low voltage distribution grid and the implementation of an improved control scheme, which also serves educational purposes. Initially the subsystems—wind turbine, rectifying bridge, interleaved boost converter, three-phase inverter, interconnection inductors, lifting transformer, filtering capacitors—are investigated, in order to explain their selection, based on the LEMEC (Laboratory of Electromechanical Energy Conversion, Department of Electrical Engineering, UoP) educational policy. Afterwards, the three-phase inverter control scheme, which is responsible for controlling its input voltage (voltage of the DC Bus) and consequently the active power, as well as the reactive power injected into the grid (VQ control) is analyzed. This is accomplished through DQ transformation and PI controllers which are responsible for generating the appropriate reference signals, to generate the required Space Vector Pulse Width Modulation (SVPWM) pulses to drive the semiconductor switches of the inverter. In addition, it is explained how this particular control method can compensate reactive power in the grid, even in apnea, by automatically charging the DC Bus. Finally, simulation and experimental results are given to prove the proposed control method effectiveness.

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10

Lu, Tongqing, Sibo Cheng, Tiefeng Li, Tiejun Wang, and Zhigang Suo. "Electromechanical Catastrophe." International Journal of Applied Mechanics 08, no. 07 (2016): 1640005. http://dx.doi.org/10.1142/s1758825116400056.

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A transducer is a system that couples two loads. For example, an electromechanical transducer couples a mechanical force and an electrical voltage. A two-load, nonlinear system can exhibit rich behavior of bifurcation, which can be displayed in a three-dimensional space, with the horizontal plane representing the two loads, and the vertical axis representing the state of the system. In this three-dimensional space, a state of equilibrium at fixed loads corresponds to a point on a surface. The surface is smooth, but its projection to the load plane results in singularities of two types: fold and cusp. Here we identify the fold and cusp for a dielectric elastomer transducer by a combination of experiment and calculation. We conduct two kinds of experiment: electrical actuation under a constant force and mechanical pulling under a constant voltage. The theory and the experiment agree well. The fold and cusp are essential in the design of loading paths to avoid or harness the bifurcation.

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11

Petukhov, A. M., V. M. Kuz’min, R. V. Kuz’min, and I. N. Dubrovskii. "Combined electromechanical generator." Russian Electrical Engineering 84, no. 5 (2013): 279–84. http://dx.doi.org/10.3103/s1068371213050076.

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12

Bassiouny, E., and G. A. Maugin. "Thermodynamical formulation for coupled electromechanical hysteresis effects—IV. Combined electromechanical loading." International Journal of Engineering Science 27, no. 8 (1989): 989–1000. http://dx.doi.org/10.1016/0020-7225(89)90039-6.

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13

Huang, Zichuan. "Application of Electromechanical Installation Construction Technology in Practical Engineering." Frontiers of Mechatronical Engineering 2, no. 2 (2020): 58. http://dx.doi.org/10.18282/fme.v2i2.1079.

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<p>Nowadays, with the continuous development of economy and society, the frequency of electromechanical installation projects in various industries is getting higher and higher. With the continuous improvement of mechanization level, the requirements for business personnel engaged in mechanical and electrical installation engineering are getting higher and higher. Electromechanical installation is a very important part in construction engineering. Only through continuous innovation, technical renewal and transformation, can the engineering function be effectively guaranteed and the economic benefit be increased. As urban construction enters the fast lane, people's requirements for the quality of life are gradually improved. The installation of construction electromechanical projects is the most prominent link in construction engineering, so construction units should pay attention to the installation of engineering electromechanical projects. The emphasis of engineering electromechanical installation is the control of installation quality and the innovation of installation technology. Based on the author's practical experience, this article first emphasizes the necessity of electromechanical installation, and then explains the relationship between construction engineering and electromechanical installation in combination with engineering practice, aiming at emphasizing the irreplaceable role of electromechanical installation in construction engineering.</p>

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14

Barash, Moshe M. "Electromechanical design handbook." Journal of Manufacturing Systems 14, no. 2 (1995): 134–37. http://dx.doi.org/10.1016/0278-6125(95)90008-x.

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15

Blick, Robert H., and Dominik V. Scheible. "A quantum electromechanical device: the electromechanical single-electron pillar." Superlattices and Microstructures 33, no. 5-6 (2003): 397–403. http://dx.doi.org/10.1016/j.spmi.2004.02.021.

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16

Saarimaki, E., M. Paajanen, A. Savijarvi, et al. "Novel heat durable electromechanical film: processing for electromechanical and electret applications." IEEE Transactions on Dielectrics and Electrical Insulation 13, no. 5 (2006): 963–72. http://dx.doi.org/10.1109/tdei.2006.1714918.

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17

Ivanov, S. N., K. K. Kim, and I. M. Karpova. "Heat-generating electromechanical converter." Russian Electrical Engineering 79, no. 9 (2008): 508–13. http://dx.doi.org/10.3103/s1068371208090071.

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18

Tang, Fan, Guo Liang Su, Dong Xiang Li, and Yu Hong Wang. "Electromagnetic - Electromechanical Transient Hybrid Simulation of Deyang-Baoji HVDC System Based on ADPSS." Advanced Materials Research 805-806 (September 2013): 935–40. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.935.

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three kinds of digital programs used in power system simulation are summarized in this paper. The electromagnetic and electromechanical transient simulation software ADPSS is introduced. Electromagnetic transient simulation, electromechanical transient simulation and electromagnetic-electromechanical transient hybrid simulation are performed respectively on Deyang-Baoji ±500KV HVDC system. The simulation result shows that the electromagnetic-electromechanical transient hybrid simulation has the advantage of electromagnetic transient simulation and electromechanical transient simulation. It can effectively analyze the process of the local electromagnetic transient in large-scale grid. The simulation speed is fast and the result is accurate and reliable.

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19

Xu, Lizhong, Lei Qin, and Cuirong Zhu. "Electromechanical integrated electrostatic harmonic actuator." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 221, no. 3 (2007): 487–95. http://dx.doi.org/10.1243/09596518jsce193.

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20

Abu-Salih, Samy, and David Elata. "Experimental Validation of Electromechanical Buckling." Journal of Microelectromechanical Systems 15, no. 6 (2006): 1656–62. http://dx.doi.org/10.1109/jmems.2006.886015.

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21

Villiers, Marius, Imran Mahboob, Katsuhiko Nishiguchi, Daiki Hatanaka, Akira Fujiwara, and Hiroshi Yamaguchi. "An electromechanical displacement transducer." Applied Physics Express 9, no. 8 (2016): 086701. http://dx.doi.org/10.7567/apex.9.086701.

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22

XU, LIZHONG, and XIAOLI JIA. "ELECTROMECHANICAL DYNAMICS FOR MICRO BEAMS." International Journal of Structural Stability and Dynamics 06, no. 02 (2006): 233–51. http://dx.doi.org/10.1142/s0219455406001939.

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In this paper, an electromechanical coupled dynamic equation of a micro beam under an electrostatic force as well as under an electromechanical coupled force is presented. The linearization of above dynamic equation is made, allowing the equation to be divided into a linear dynamic equation for dynamic displacement and a static balance equation for static displacement. Using the balance equation, the changes of the voltage along with displacement are studied. It is shown that there is a critical voltage at which the micro beam will buckle. From the linear dynamic equation, natural frequencies and vibration modes of the micro beam, and its forced responses to voltage excitation are derived. The results show that the natural frequencies and vibrating magnitudes of the micro beam are affected by mechanical and electric parameters. Smaller beam length and voltage as well as larger beam thickness and clearance should be selected in order to obtain smaller vibrating magnitudes. It is also shown that for higher vibration modes, more positions of the peak dynamic displacements occur.

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23

Zhou, Jianyou, and Liying Jiang. "Electromechanical fatigue of dielectric viscoelastomers." Extreme Mechanics Letters 36 (April 2020): 100666. http://dx.doi.org/10.1016/j.eml.2020.100666.

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24

Dhingra, Anoop K. "Handbook of electromechanical product design." Experimental Thermal and Fluid Science 11, no. 2 (1995): 224. http://dx.doi.org/10.1016/0894-1777(95)90008-x.

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25

Korikov, A. M. "From radiolocation of meteor trails to the systemic organization of science, higher education and production: dedication to the 90th anniversary of Felix Ivanovich Peregudov." Proceedings of Tomsk State University of Control Systems and Radioelectronics 24, no. 1 (2021): 99–105. http://dx.doi.org/10.21293/1818-0442-2021-24-1-99-105.

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F.I. Peregudov graduated from Tomsk Polytechnic Institute with a degree in Radio Engineering in 1953, then done his postgraduate studies at Tomsk State University and worked at Tomsk Polytechnic University: he was one of the organizers and leaders of the first research projects in the field of radiolocation. In 1961 he organized the Tomsk Design Bureau «Project», in 1966 1970 became Director of the Tomsk Radio Engineering Plant, in 1970–1981 took the position of Deputy Director and Director of the Research Institute of Automation and Electromechanics at Tomsk Institute of Automated Control and Radioelectronics (TIASUR), in 1981–1984 took the lead as Rector of TIASUR. In 1984–1985 he continued his career as Deputy Minister of Higher and Secondary Specialized Education of the Russian Soviet Federative Socialist Republic (RSFSR), in 1985–1990 was appointed the USSR Minister and Deputy Chairman of the USSR State Committee for Higher Education. F.I. Peregudov applied a systematic approach in all areas of his activity. During the times he headed Tomsk Design Bureau «Project» F.I. Peregudov organized the development of passive radar equipment. Working as director of the Tomsk Radio Engineering Plant, he created one of the country's first automated control systems (ACS) for production. During his work at the Research Institute of AEM, he initiated the creation of one of the first territory automated control systems in the country. In 1973, the Research Institute of Automation and Electromechanics was designated as the head organization for the development of Tomsk region automated control system, and F.I. Peregudov becomes its chief designer. He made an appeal to many leading scientists from Tomsk to create the Tomsk region automated control system, on his initiative, a computing center for collective use of the Tomsk regional statistics department was established as an integral part of the Tomsk region automated control system. During his work in Moscow, Felix Ivanovich maintained constant contact with Tomsk. In 1990, he contributed to the opening in Tomsk of the first Science Park in Russia

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26

Zhang, Kai, Wu Zhao, and Chun Sheng Zhou. "Knowledge Support Technology of Creative Design for Electromechanical Products." Advanced Materials Research 139-141 (October 2010): 1148–53. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.1148.

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It has been discussed in this paper that the necessity of knowledge support technology used in creative design of electromechanical products. In order to apply knowledge support technology to creative design of electromechanical products, a relation matrix has been constructed by QFD (Quality Function Deployment) technology between the various performances of electromechanical products and the involved knowledge of them. Thus, the HOQ (House of Quality) about the knowledge–performance of electromechanical products is built. Then, the further demand tracking has been made as well. After that, it has been established that the knowledge model and knowledge application process used in creative design of electromechanical products. Finally, a new method has been proposed which can guide designers to do product creative design by knowledge demand.

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27

Münster, Martin, Ulrich Mair, Heinz-Joachim Gilsdorf, et al. "Electromechanical Active Body Control." ATZautotechnology 9, no. 3 (2009): 24–29. http://dx.doi.org/10.1007/bf03247116.

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28

Pyatishev, E. N., Y. B. Enns, Yu D. Akulshin, and A. V. Odintsov. "Thin-Film Electromechanical Optical Shutter." Nano- i Mikrosistemnaya Tehnika 20, no. 10 (2018): 625–32. http://dx.doi.org/10.17587/nmst.20.625-632.

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29

Kalyonov, V. E., A. V. Korlyakov, N. I. Alekseyev, et al. "Electromechanical Model of IPMC-Actuator." Nano- i Mikrosistemnaya Tehnika 21, no. 2 (2019): 89–97. http://dx.doi.org/10.17587/nmst.21.89-97.

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30

Qiao, Guan, Geng Liu, Zhenghong Shi, Yawen Wang, Shangjun Ma, and Teik C. Lim. "A review of electromechanical actuators for More/All Electric aircraft systems." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 22 (2017): 4128–51. http://dx.doi.org/10.1177/0954406217749869.

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Conventional hydraulic actuators in aircraft systems are high maintenance and more vulnerable to high temperatures and pressures. This usually leads to high operating costs and low efficiency. With the rapid development of More/All Electric technology, power-by-wire actuators are being broadly employed to improve the maintainability, reliability, and manoeuvrability of future aircraft. This paper reviews the published application and development of the airborne linear electromechanical actuator. First, the general configuration, merits, and limitations of the gear-drive electromechanical actuator and the direct-drive electromechanical actuator are analysed. Second, the development state of the electromechanical actuator testing systems is elaborated in three aspects, namely the performance testing based on room temperature, testing in a thermal vacuum environment, and iron bird. Common problems and tendencies of the testing systems are summarized. Key technologies and research challenges are revealed in terms of fault-tolerant motor, high-thrust mechanical transmission, multidisciplinary modelling, thermal management, and thermal analysis. Finally, the trend for future electromechanical actuators in More/All Electric Aircraft applications is summarized, and future research on the airborne linear electromechanical actuators is discussed.

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Amati, Nicola, Andrea Tonoli, Luca Castellazzi, and Sanjarbek Ruzimov. "Design of electromechanical height adjustable suspension." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 9 (2017): 1253–69. http://dx.doi.org/10.1177/0954407017728633.

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In the general context of vehicles’ fuel consumption and emissions reduction, the minimization of the aerodynamic drag can offer not negligible benefits regarding the environmental issues. The adjustment of the vehicle height is one of the possible ways to provide a reduction of the resistances to vehicle motion, in addition to consequent aspects regarding the increased versatility of the vehicle. The aim of this paper is to present in a systematic way the state of the art of height adjustment systems for passenger vehicles, summarizing the main modes of operations, working principles, and architectures. Particular attention is then given to electromechanical systems, which represent the next trends for future vehicles due to their high reliability and relatively low costs. A design methodology for electromechanical height adjustment systems with the purpose of optimizing their performance is presented. Such procedure is able to reach the most efficient working point even in presence of constraints of different nature. Prototypes have been designed, produced and tested to demonstrate the potentialities of electromechanical height adjustment systems. Furthermore, potential benefits and drawbacks of using such systems are highlighted.

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32

Xu, L., and X. Jia. "Electromechanical-fluidic coupled dynamics for microbeams." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 222, no. 3 (2008): 535–48. http://dx.doi.org/10.1243/09544062jmes694.

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In the current article an electromechanical-fluidic coupled dynamic model of the microbeam is presented and the electromechanical-fluidic coupled dynamic equations are obtained. Using the KBM method, the non-linear coupled dynamic equations are resolved. The explicit equations of the free vibrating displacements of the microbeam are given. Under free vibration, the equations of the electric field fluctuation and the air pressure fluctuation are also given. Besides this, the forced responses of the electromechanical-fluidic coupled system to voltage excitation are also analysed. Changes in the electromechanical-fluidic coupled vibrations along with mechanical, electric, and fluidic parameters are investigated.

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33

Bolyukh, V. F., V. F. Luchuk, M. A. Rassokha, and I. S. Shchukin. "High-efficiency impact electromechanical converter." Russian Electrical Engineering 82, no. 2 (2011): 104–10. http://dx.doi.org/10.3103/s1068371211020027.

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34

Liu, Shu Hong, Yan Liang Du, Yue Qin Qi, and Cong Juan Yang. "The Plane Problem Solution of Piezoelectric Material with a Line Crack." Advanced Materials Research 33-37 (March 2008): 533–38. http://dx.doi.org/10.4028/www.scientific.net/amr.33-37.533.

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A two-dimensional electromechanical analysis is performed on a transversely isotropic piezoelectric material containing a line crack of length 2a, which is subjected to uniform distributed forces with intensity q along the crack faces and uniform electric displacement fields at infinity. Based on the impermeable electric boundary conditions, the closed complex form expression for the electromechanical fields are deduced in the vicinity of the crack. Taking PZT-4 ceramic into consideration, electromechanical fields under different loads are illustrated through several examples. It can be seen that electromechanical fields show 1/2 order singularity at the crack tip, and the piezoelectric effect can’t be negelected.

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35

Mastropaolo, E., I. Gual, and R. Cheung. "Silicon carbide electromechanical resonators." Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanoengineering and Nanosystems 223, no. 3-4 (2009): 87–97. http://dx.doi.org/10.1243/17403499jnn176.

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36

Jin, Huawei, Huanyu Huo, Chuanli Wang, Shun Wang, and Huwei Xu. "Design and experimental study of electrical and mechanical brake for mine hoist." Mechanics & Industry 22 (2021): 36. http://dx.doi.org/10.1051/meca/2021033.

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To meet the requirement of the braking response of the coal mine hoist, a new electromechanical braking technology for mine hoists is proposed, the principle of electromechanical braking of mine hoists is demonstrated, and the detailed parameters and braking performance of electromechanical brakes are given. Index, an electromechanical brake test platform with large load and high response is developed. Experiments show that the maximum positive pressure of the designed electromechanical brake reaches 33 KN, which meets the requirement of positive pressure of mine hoist. The braking error is less than 10 %, and the braking gap elimination time is less than 0.1 s. There is a linear relationship between motor current input and brake positive pressure output, with a slope of 4.17 and an intercept of 0.62. The screw displacement output and the brake pressure output have a cubic relationship, and the zero error is small. Through research, a new idea is provided for the development of electromechanical brakes for coal mine hoist.

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Nagem, R. J., S. I. Madanshetty, and G. Medhi. "AN ELECTROMECHANICAL VIBRATION ABSORBER." Journal of Sound and Vibration 200, no. 4 (1997): 551–56. http://dx.doi.org/10.1006/jsvi.1996.0681.

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38

Tallur, Siddharth, and Sunil A. Bhave. "A Silicon Electromechanical Photodetector." Nano Letters 13, no. 6 (2013): 2760–65. http://dx.doi.org/10.1021/nl400980u.

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Yang, Xiao Mei. "A Hybrid-Stabilized Solid Element for Piezoelectric Laminated Plate Analysis." Advanced Materials Research 311-313 (August 2011): 248–55. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.248.

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In this paper, an eight-node solid hybrid-stabilized element for general piezoelectric laminate plate analysis is formulated based on the electromechanical Hellinger-Reissner functional. The independent field variables in the functional include the displacement, electric potential, stress and electric displacement. The non-constant electromechanical stress modes are contravariant in nature and chosen to be orthogonal with respect to the constant ones. The othogonality and the practice put forward in the admissible matrix formulation allow the electromechanical flexibility matrices to be block diagonal. As a result, the computational cost for inverting the electromechanical flexibility matrices can be greatly reduced. Numerical examples indicate that the proposed hybrid piezoelectric element is more accurate than their conventional counterpart.

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Nichols, Todd S., and H. Ghoneim. "A Remote Electromechanical Vibration Absorber." Journal of Intelligent Material Systems and Structures 14, no. 1 (2003): 23–34. http://dx.doi.org/10.1177/1045389x03014001003.

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Newnham, R. E., and Gregory R. Ruschau. "Electromechanical Properties of Smart Materials." Journal of Intelligent Material Systems and Structures 4, no. 3 (1993): 289–94. http://dx.doi.org/10.1177/1045389x9300400301.

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Annaz, Fawaz Yahya. "Smart multi-lane electromechanical actuators." Journal of Mechanical Science and Technology 21, no. 6 (2007): 955–60. http://dx.doi.org/10.1007/bf03027076.

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Tabib-Azar, Massood, Swarup Bhunia, and Daniel Saab. "Complimentary Nano-Electromechanical Carbon Nanotube Switches." ECS Transactions 3, no. 10 (2019): 375–88. http://dx.doi.org/10.1149/1.2357277.

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Moon, F. C. "Mechanics of Electronic and Electromechanical Devices." Applied Mechanics Reviews 38, no. 10 (1985): 1294–96. http://dx.doi.org/10.1115/1.3143696.

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Problems involving the interaction of electromagnetic material effects and forces with stresses, deformations, and dynamics span a wide spectrum from thermal strain problems in microelectronic chips to stresses in large superconducting magnets for fusion reactors, NMR scanners, and levitated trains. An important class of problems that merits increased research effort are the mechanics problems associated with transducers or sensors based on ferroelectric, ferromagnetic, semiconductor, or microelectronic materials. Another area which may have technological payoff is that of electromechanical actuators. Further work is also required on numerical methods for calculating electromagnetic fields, forces, torques, and currents in order to allow engineers to better design and optimize electromagnetic devices. Interaction of laser radiation and high energy particles with solids is another area for new research. Progress in this field has not been steady. The interdisciplinary nature of these problems has meant that the field has no natural home for funding. This will present a problem for future progress in this field.

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Xu, L., and J. Huang. "Torques for Electromechanical Integrating Toroidal Drive." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 219, no. 8 (2005): 801–11. http://dx.doi.org/10.1243/095440605x31643.

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In this study, an electromechanical integrating toroidal drive is proposed and its operating principle is introduced. The equations of electromechanical coupled force and the rotor torque for the drive are given by means of electromagnetic theory and mechanical principle. The influenced factors of the rotor torque are analysed and their influences are obtained. There are periodic changes in the rotor torque and the change mainly depends on the tooth number of planet. The changes of the rotor torque along with mechanical and electric parameters of the drive and the limit-driving torque of the drive are presented. The limit driving torque is influenced by rotating angle of the planet and other factors. The minimum limit value decides the load-carrying ability of the drive. The equal-limit torque conditions between planet-worm and planet-stator are discussed. In order to obtain the equal-limit torque, a deterministic relation should be met among the current of the worm, the magnetic induction intensity of the permanent magnet stator, and the airgap thickness.

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LiZhong, Xu, and Fu XiaoRui. "Electromechanical Coupled Forced Responses for Microplate." Advances in Mechanical Engineering 6 (January 1, 2014): 857015. http://dx.doi.org/10.1155/2014/857015.

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The electromechanical coupled forced response of the microplate subjected to electrostatic force is investigated. Using electromechanical coupled dynamic equations and the mode superposition method, the forced responses of the microplate to voltage excitation and load excitation are analyzed, respectively. Based on this, the coupled forced responses of the micrplate to voltage and load excitations are obtained. Beat vibration caused by the coupled response is investigated and the condition that the beat vibration occurs is determined.

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Xu, Lizhong, and Xiaoli Jia. "Electromechanical coupled nonlinear dynamics for microbeams." Archive of Applied Mechanics 77, no. 7 (2007): 485–502. http://dx.doi.org/10.1007/s00419-007-0110-8.

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Rais-Zadeh, Mina, Vikrant Jayant Gokhale, Azadeh Ansari, et al. "Gallium Nitride as an Electromechanical Material." Journal of Microelectromechanical Systems 23, no. 6 (2014): 1252–71. http://dx.doi.org/10.1109/jmems.2014.2352617.

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Fan, Shuli, Weijie Li, Qingzhao Kong, Qian Feng, and Gangbing Song. "Monitoring of pin connection loosening using eletromechanical impedance: Numerical simulation with experimental verification." Journal of Intelligent Material Systems and Structures 29, no. 9 (2018): 1964–73. http://dx.doi.org/10.1177/1045389x18754354.

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Pin connection, as an important structural connection mechanism, is widely used in various structures, especially spatial structures. In this article, numerical and experimental investigations are performed for monitoring the loosening of pin-connected structures using the electromechanical impedance technique. For this purpose, a finite element model for a pin-connected structure considering the contact interfaces between the pin and the support base is proposed to study the effect of pin connection loosening on the electromechanical impedance signatures. A multi-physics analysis is conducted to simulate the electromechanical behavior of lead zirconate titanate transducers bonded on the pin head and the steel base. The relationship between the force applied on the pin connection and the variation in electromechanical impedance signatures is established. Experiments are carried out to verify the accuracy of the proposed finite element model. The results show that the changes in the electromechanical impedance signatures consist of frequency shifts and peak splitting. The contact condition of the pin connection can be assessed by observing the changes in the electromechanical impedance signatures. The location of the piezoelectric patch has significant effect on the sensitivity of the electromechanical impedance signatures. The numerical study in this research helps to optimize the design of sensor placement and improve the detection accuracy of the electromechanical impedance method in practical applications of detecting the loosening of pin-connected structures.

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Li, Xiujuan, Wenzhong Qu, Li Xiao, and Ye Lu. "Removal of temperature effect in impedance-based damage detection using the cointegration method." Journal of Intelligent Material Systems and Structures 30, no. 15 (2019): 2189–97. http://dx.doi.org/10.1177/1045389x19862364.

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Electromechanical impedance technique has been widely used in the area of structural health monitoring. However, both damage and variation in environmental temperature can cause the changes in electromechanical impedance signature, which may cause false damage diagnosis. The temperature effect on the electromechanical impedance-based method has been one of its main drawbacks in practical application. This article proposes a new approach based on cointegration to eliminate temperature interference in the electromechanical impedance technique. The augmented Dickey–Fuller test is used to analyze the stationary characteristics of the time series and determine the degree of non-stationarity. The Johansen test is used to obtain the cointegrating residuals instead of the direct electromechanical impedance responses for damage detection. The proposed method is verified on the undamaged and damaged steel plates with the consideration of environmental temperature variations. The damage detection was based on the electromechanical impedance technique in which the peak frequency is chosen as a cointegrated variable. The experimental results show that the cointegration method can remove the temperature effect on the electromechanical impedance responses, and the cointegrating residuals are effective indices to indicate the occurrence of damage.

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