Relevant bibliographies by topics / Linear motor

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Linear motor'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 May 2022

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Journal articles on the topic "Linear motor"

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Chen, Xinwen, Hanying Jiang, Zhaohua Li, and Kun Liang. "Modelling and Measurement of a Moving Magnet Linear Motor for Linear Compressor." Energies 13, no. 15 (August 4, 2020): 4030. http://dx.doi.org/10.3390/en13154030.

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For the purpose of efficiency improvement, a linear motor that performs a linear reciprocating motion can be employed to directly drive the piston in a reciprocating refrigeration compressor without crankshaft mechanism. This also facilitates the modulation of cooling capacity as the stroke and frequency can be readily varied in response to heat load. A novel design of moving magnet linear motor for linear compressor was analyzed in the paper. A finite element analysis (FEA) model was built to simulate the characteristics of the linear motor. Current and displacement signals were measured from a test rig and were defined in the transient FEA model. Transient motor force was simulated with the FEA model and good agreements are shown between the results from the FEA model and interpolated shaft force from static force measurements. Major Losses, such as copper loss and core loss were also computed. Motor efficiency decreased from 0.88 to 0.83 as stroke increased from 9 mm to 12 mm, while the pressure ratio remained unchanged. Comparisons were made between the present moving magnet linear motor and moving coil linear motors. Generally, the moving magnet linear motor demonstrates higher efficiency than moving coil motors, which have significantly higher copper loss. The present moving magnet design with simple structure could be further optimized to improve motor efficiency.
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Bakewell, David J. G., and Dan V. Nicolau. "Protein Linear Molecular Motor-Powered Nanodevices." Australian Journal of Chemistry 60, no. 5 (2007): 314. http://dx.doi.org/10.1071/ch06456.

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Myosin–actin and kinesin–microtubule linear protein motor systems and their application in hybrid nanodevices are reviewed. Research during the past several decades has provided a wealth of understanding about the fundamentals of protein motors that continues to be pursued. It has also laid the foundations for a new branch of investigation that considers the application of these motors as key functional elements in laboratory-on-a-chip and other micro/nanodevices. Current models of myosin and kinesin motors are introduced and the effects of motility assay parameters, including temperature, toxicity, and in particular, surface effects on motor protein operation, are discussed. These parameters set the boundaries for gliding and bead motility assays. The review describes recent developments in assay motility confinement and unidirectional control, using micro- and nano-fabricated structures, surface patterning, microfluidic flow, electromagnetic fields, and self-assembled actin filament/microtubule tracks. Current protein motor assays are primitive devices, and the developments in governing control can lead to promising applications such as sensing, nano-mechanical drivers, and biocomputation.
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MIYATA, Shohiko, Akio MATSUURA, and Hajime TAKAGI. "Linear motor carMAGLEV." Doboku Gakkai Ronbunshu, no. 415 (1990): 17–25. http://dx.doi.org/10.2208/jscej.1990.415_17.

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Teter, Joseph P., and Arthur E. Clark. "Magnetostrictive linear motor." Journal of the Acoustical Society of America 92, no. 1 (July 1992): 631. http://dx.doi.org/10.1121/1.404062.

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Yamaguchi, Masaki. "Linear ultrasonic motor." Journal of the Acoustical Society of America 96, no. 1 (July 1994): 614. http://dx.doi.org/10.1121/1.410393.

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Onishi, Kazumasa, and Koichi Naito. "Ultrasonic linear motor." Journal of the Acoustical Society of America 97, no. 5 (May 1995): 3215. http://dx.doi.org/10.1121/1.411837.

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Otsuka, Jiro, Toshiharu Tanaka, and Ikuro Masuda. "Sub-Nanometer Positioning Combining New Linear Motor with Linear Motion Ball Guide Ways." International Journal of Automation Technology 3, no. 3 (May 5, 2009): 241–48. http://dx.doi.org/10.20965/ijat.2009.p0241.

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A new type of linear motor described in this paper has some advantages compared with the usual types of motors. The attractive magnetic force between the stator (permanent magnets) and mover (armature) is diminished almost to zero. The efficiency is better because the magnetic flux leakage is very small, the size of motor is smaller and detent (force ripple) is smaller than the general motors. Therefore, we think that this motor is greatly suitable for ultra-precision positioning as an actuator. An ultra-precision positioning device using this motor and liner motion ball guide ways is newly developed. Moreover, the positioning performance is evaluated by a positioning resolution, deviational and dispersion errors. As the results of repeated step response tests, the positioning resolution is 0.3 nm, the deviational error is -0.001nm and the dispersion error (3σ) is 0.29 nm. Consequently, the positioning device achieves sub-nanometer positioning. In addition, very large rigidity can be achieved.
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VELI, Yelda, Alexandru M. MOREGA, Lucian PÎSLARU – DĂNESCU, Mihaela MOREGA, and Marius POPA. "The Study of a Linear Magnetostriction Motor." "ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)" 1, no. 1 (November 19, 2020): 1–8. http://dx.doi.org/10.36801/apme.2019.1.12.

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Leisten, J. M., D. R. G. H. Jones, and L. Hobson. "Laboratory Exercise on Linear Induction Motors." International Journal of Electrical Engineering & Education 24, no. 2 (April 1987): 101–13. http://dx.doi.org/10.1177/002072098702400202.

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The paper describes the results of an exercise on linear induction motors to demonstrate their principles in an undergraduate laboratory experiment. Basic linear motor characteristics are demonstrated and magnetic field strength measurements made. An equivalent circuit for the motor is derived from practical tests and results processed by a computer to predict motor efficiency and rotor thrust for various values of slip.
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Ahmadinia, Nahid. "The Linear Induction Motor (LIM) & Single Linear Induction Motor (SLIM)." American Journal of Electrical Power and Energy Systems 3, no. 4 (2014): 71. http://dx.doi.org/10.11648/j.epes.20140304.11.

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Dissertations / Theses on the topic "Linear motor"

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Halkyard, Peter. "Terfenol-D magnetostrictive linear motor." Thesis, University of Salford, 2011. http://usir.salford.ac.uk/26704/.

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Actuators and linear motors are a common way to provide single axis motion and force. Rack and pinion, chain, belt, cable, screw, hydraulic and electric solenoid are a few of the many types of actuators available. All have inherent strengths and weakness such as power consumption, mechanical failure and usually a trade off with speed and resolution. The thesis investigation is to develop a linear motion actuator based on the magnetic material, Terfenol-D which alters its shape when subjected to a magnetic field. This phenomenon is known as magnetostriction which can be defined as a changing of a material's physical dimensions in response to its magnetization. Terfenol-D has the largest known magnetostriction, 2000ppm at ambient temperatures [1], of all commercially available materials. Because of these large strains it is given the term Giant Magnetostriction (GM). In Terfenol-D the GM is dependent on the direction of the applied magnetic field with respect to the direction in the crystal: the material elongates in the direction of the field and, orthogonal to this, the material contracts within the principal of constant volume. This property has been exploited by other researchers in the past resulting in Terfenol-D being used as a short stroke conventional actuator in applications requiring large force at both high and low frequencies, generating a range of applications including surgical instruments, ultrasonic transducers and many others. It is this property of Terfenol-D that will be exploited in this project in the development of the magnetostrictive linear motor. Stepping motors based upon Giant Magnetostrictive (GM) materials are more complex actuators than those based on a more conventional design. To get a long stroke, they use the addition of several small steps, each produced by quasi static deformation of the GM materials. In this project the Kiesewetter Elastic Wave Motor using Terfenol-D, as referenced in the abstract, was used as the starting point for the design of a new Terfenol-D based motor. In particular, the project investigates different topologies of Terfenol-D in the design and construction of a Magnetostrictive Linear Motor
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Crawford, Douglas Stewart. "Sensor designand feedback motor control for two dimensional linear motors." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/37546.

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Stroinski, Krzysztof Jerzy. "Generalized linear models in motor insurance." Thesis, Heriot-Watt University, 1987. http://hdl.handle.net/10399/1044.

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Manchen, Manfred Ludwig. "Shaded-pole flat linear induction motor." Thesis, Cape Technikon, 1990. http://hdl.handle.net/20.500.11838/1137.

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Thesis (Masters Diploma (Heavy Current)) -- Cape Technikon, 1991
Linear induction motors are built for numerous applications. Their robustness, gearfree-link to the load and the fact that speed is not a function of the number of poles (as in round machines) are only a few advantages. As every single phase motor needs some starting aid, so does a linear induction drive. For round machines, capacitors or shaded poles are usually used. A capacitor can be damaged electrically, which is a rare occurrence for shading rings. A useful combination of these advantages is a linear induction motor which is gearless and uses the shaded pole principle as a starting aid. In order to simplify the designing process, a computer program (Fortran) was written. The main objective on the electrical side was to obtain low input power, high power factor and high efficiency. In order to find the performance curves, torque measurements were made. Although the principles of torque measurements are well known the device to measure torque for this machine was not available and had to be constructed.
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Johnson, Andrew P. (Andrew Peter). "High speed linear induction motor efficiency optimization." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/10945/11052.

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CIVINS
CIVINS
One of the reasons linear motors, a technology nearly a century old, have not been adopted for a large number of linear motion applications is that they have historically had poor efficiencies. This has restricted the progress of linear motor development. The concept of a linear motor as a rotary motor cut and laid out flat with a conventional rotary motor control scheme as a design basis may not be the best way to design and control a high-speed linear motor. End effects and other geometry subtleties of a linear motor make it unique, and a means of optimizing efficiency with both the motor geometry and the motor control scheme will be analyzed to create a High-Speed Linear Induction Motor (LIM) with a higher efficiency than what is possible with conventional motors and controls. This thesis pursues the modeling of a short secondary type Double-Sided Linear Induction Motor (DSLIM) that is proposed for use as an Electromagnetic Aircraft Launch System (EMALS) aboard the CVN-2 1. Mathematical models for the prediction of effects that are peculiar to DSLIM are formulated, and their overall effects on the performance of the proposed machine are analyzed.;3 |a(cont.) These effects are used to generate a transient motor model, which is then driven by a motor controller that is specifically designed to the characteristics of the proposed DSLIM. Due to this DSLIM's role as a linear accelerator, the overall efficiency of the DSLIM will be judged by the kinetic energy of the launched projectile versus the total electric energy that the machine consumes. This thesis is meant to propose a maximum possible efficiency for a DSLIM in this type of role.
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Sharp, Scott L. "Design of a Linear Ultrasonic Piezoelectric Motor." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/997.

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A new geometrically unique ultrasonic motor (USM) was designed using finite element modeling (FEM). A USM operates by vibrating a drive tip in an elliptical motion while it is in periodic contact with a driven surface. Piezoelectric elements are used to create the elliptical motions and are driven near a resonant frequency to create the needed displacements for the motor to operate. An idea for a motor frame was conceived that consisted of an arch, a center ground, and two piezoelectric elements connected to the center ground. End caps were added between the frame and the piezoelectric elements to reduce the stress of the elements. Legs located at the bottom of were used to increase the rigidity. Several FEM programs were written to design the motor and to predict its performance. The FEM motor model exceeded the performance characteristics of the benchmark Nanomotion HR1. The model predicted a linear motor capable of pushing up to 5 N and a maximum speed of 0.4 m/s. A prototype frame was built out of tool steel and run against an oxide ceramic plate. The USM prototype's piezoelectric elements did not provide the expected displacements in the motor frame as determined by the FEM. The discrepancy was determined to be caused manufacturing errors. Soft glue layers were thicker than expected on each side of the piezoelectric elements causing a large amount of compliance inline with the piezoelectric motion. An additional unexpected layer of glue between the end cap and frame increased the compliance inline with the piezoelectric elements even more. It was also determined that even if the motor had been assembled properly that Hertzian displacement would have caused a 1/3 decrease in piezoelectric motion. The prototype frame's steady state displacements were approximately 20% of the expected output from the FEM models. The motor was still able to achieve a maximum speed of 55.6 mm/s and a push force of 0.348 N at a preload of 6 N. It is expected that a motor assembly correctly dimensioned and manufactured and designed to minimize Hertzian displacement would result in a significantly better performing prototype.
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Ismael, Adel. "Microprocessor-controlled brushless DC linear stepping motor." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/119080/.

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Presently, there is a rapidly growing research interest for an efficient, high thrust density and high thrust to input power electrical linear machine. However, only limited work has been carried out in terms of the development of brushless DC linear motors (BDCLM). Focusing on this research gap which presently exist in this field, this thesis makes the development of the BDCLM the research objective, in order to produce a large thrust to input power, compared to the already existing designs. The motor is designed in such way that the motor core accommodates twenty-four independent multi-layer coil sections wound with enamelled copper wire and each layer section has 470 turns without compromising the effective air-gap. Also, a design commutation algorithm to provide a smooth movement and a high thrust for the BDCLM is implemented. The design, analysis and optimization of the BDCLM in applications that requires a high thrust to input current ratio is described in this project. The investigation includes; the analysis, design, and control of the BDCLM through appropriate modelling, construction and experimental validation of the modelled results, employing both the static and dynamic approaches. The BDCLM design was analysed from electrical, mechanical and magnetic perspectives. A Finite Element Method (FEM) was used to predict the performance of the BDCLM and to optimise the motor parameters. Additional challenges such as force ripple and normal force are investigated and analysed. A Proportional Integral Derivative (PID) control system, based on an Arduino Mega board is used to control the motor speed and position. A graphical user interface (GUI) is built in LabVIEW environment to control the Arduino board. V The experimental results were within 8.9 %, 2 % and 3 % of the modelled results with respect to the motor thrust, speed and position. These results demonstrate a good agreement between the two approaches. This research work can be considered as an initial step to developing the BDCLM for commercial applications.
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Chow, Irene A. (Irene Ai Tze). "Design of a two-axis linear motor." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12349.

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Choi, Henry O. "A linear ultrasonic motor for nano-technology." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38148.

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Pippi, Rafael Silva. "Motor ultra-sônico linear com geometria tubular." Universidade Federal de Santa Maria, 2008. http://repositorio.ufsm.br/handle/1/3656.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
This work presents the study on a linear ultrasonic motor with tubular geometry for linear displacements. Similar topologies, reported elsewhere, are conceived for producing rotary motions. Due to some particular characteristics of this geometry, not explored yet, a new study on interaction between resonance modes in a hollow cylinder for linear movement generation is proposed. In order to experimentally investigate the resonance modes in tubular stators, a proof of concept prototype was built and tested. The prototype consisted of a internally toothed phosphore bronze tube, excited by two PZT rings. Several types of mobile axes, with one or more solid cylinders of aluminum or stainless steel, were employed. The methodology of test consisted of changing geometric parameters, properties of materials, sweeping driving conditions, and observing the respective movement on the shaft. Tests showed the production of linear and/or angular movements, with maximum speeds of 0,07m/s, but with little uniformity and repeatability. The lack of conclusive hypothesis on the stability issue, based only on experimental set of results, has led to a reassessment of the methodology of investigation, including additional analysis tools for the characterization of the device. So, a simple analytical modeling of the stator was formulated to set up a project methodology. Despite its simplicity and limitations, the analytical model allows a first order approximation for resonance modes, and relates them to the constructive parameters of the stator. In order to take the influence of the factors neglected in the analytical modeling into account, the analysis was complemented with finite element method (FEM) simulations. The deformation profiles of the stator to the 21st resonance mode were analyzed using FEM. With the results, it is possible to predict the behavior of the resonance frequencies, and the corresponding deformations they produce on the teeth, for each stator configuration. The most important result of this analysis is to show the relationship between aspect ratio of ellipsoidal trajectory on the stator teeth and the geometry of the stator. This allows a conclusive diagnosis on the inefficiency of the built prototype: The small amplitude of the longitudinal component of traveling deformation wave. An analysis of simulations results has lead to a design methodology for this new type of motor. The results showed that if the stator is redesigned according to the proposed methodology, it would be able to produce longitudinal deformations of 2.6 μm, with ceramics driven at 35.3 V. If Compared to simulations of the prototyped stator the new project exhibits an increase of 90% for radial deformation components of, and 3600% for the longitudinal components, indicating that if the new design was implemented, it could achieve much higher efficiency in movement production.
Este trabalho apresenta o estudo de um motor ultra-sônico com geometria tubular para movimentos lineares. Outros motores com geometria tubular, encontrados na bibliografia, são concebidos para a produção de movimentos rotativos. Devido a diversas características ainda não exploradas desta geometria, um novo estudo sobre a interação dos modos naturais de vibração de um cilindro vazado para a geração de movimento linear é proposto. Com o objetivo de investigar experimentalmente os modos de ressonância em estatores tubulares, um protótipo para prova de conceito foi construído e ensaiado. O protótipo consiste de um tubo vazado, dentado internamente, excitado por dois anéis de PZT. Foram utilizados diversos tipos de eixos móveis, com um ou mais cilindros maciços de alumínio ou aço inoxidável. A metodologia de ensaio consistiu da variação dos parâmetros geométricos, propriedades de materiais e condições de acionamento, e da respectiva observação e medição dos movimentos do eixo. Os testes evidenciam a produção de movimentos lineares e/ou angulares com velocidades máximas de aproximadamente 0,07m/s, mas com pouca uniformidade e repetibilidade. A impossibilidade de uma análise conclusiva sobre a instabilidade do motor com base apenas nos resultados experimentais de bancada motivou uma reavaliação da metodologia de estudo e a busca de ferramentas adicionais para a caracterização do dispositivo. Uma modelagem analítica do estator foi formulada para que um roteiro de análise e cálculos dimensionais pudessem ser estabelecidos. Embora simples e com diversas limitações, o modelo obtido permite aproximações de primeira ordem para os modos de ressonância em função dos parâmetros construtivos do estator. Para que a influência das não-linearidades não incluídas na modelagem possa ser avaliada, a análise foi complementada com simulações pelo método dos elementos finitos (FEM). Os perfis das deformações do estator até o 21o modo de ressonância foram analisados utilizando FEM. Com os resultados obtidos, é possível prever o comportamento das freqüências naturais e das deformações nos dentes em função das características do estator. O resultado mais importante desta análise é mostrar a relação de aspecto da trajetória elipsoidal dos dentes do estator, com a geometria do estator, permitindo um diagnóstico conclusivo sobre a ineficiência do protótipo construído: A baixa amplitude da componente de deformação longitudinal da onda viajante no tubo. O estudo dos resultados das simulações permitiu o estabelecimento de um roteiro de análise e cálculos dimensionais para este novo tipo de motor. Simulações realizadas mostraram que um estator projetado com o roteiro proposto, é capaz de produzir deformações longitudinais de 2,6μm e radiais de 3,8μm, quando as cerâmicas piezelétricas são acionadas a 35,3 V. Comparando-se os resultados das simulações do estator prototipado com o novo projeto, observa-se um acréscimo teórico de 90% nas componentes de deformação radial e 3600% nas componentes longitudinais, indicando que um novo protótipo construído de acordo com o projeto pode atingir uma eficiência muito superior na produção de movimento.
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Books on the topic "Linear motor"

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Cheema, Muhammad Ali Masood, and John Edward Fletcher. Advanced Direct Thrust Force Control of Linear Permanent Magnet Synchronous Motor. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40325-6.

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Cho, David Ming Kei. Multiple simultaneous specification (MSS) control of brushless D.C. motor and high-speed linear positioning system. Ottawa: National Library of Canada, 1999.

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Elmas, Çetin. A position sensorless operation of a switched reluctance motor drive based on a non-linear observer. Birmingham: University of Birmingham, 1993.

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Peter, Gaspar, Bokor Jozsef, and SpringerLink (Online service), eds. Robust Control and Linear Parameter Varying Approaches: Application to Vehicle Dynamics. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.

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Gastel, Saskia van. Food consumption and mental and motor development in relation to linear growth retardation in rural Zambian children. Wageningen, Netherlands: Dept. of Human Nutrition, Wageningen Agricultural University, 1995.

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Shorten, Robert Noel. A study of hybrid dynamical systems with application to automobile control. Dublin: University College Dublin, 1996.

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Rauch, Jeffrey. Transient and steady-state tests of the space power research engine with resistive and motor loads. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Rauch, Jeffrey. Transient and steady-state tests of the space power research engine with resistive and motor loads. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Rauch, Jeffrey. Transient and steady-state tests of the space power research engine with resistive and motor loads. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Rauch, Jeffrey. Transient and steady-state tests of the space power research engine with resistive and motor loads. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "Linear motor"

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Green, Judith L., Robert W. Moon, and Anthony A. Holder. "Merozoite Linear Motor." In Encyclopedia of Malaria, 1–9. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8757-9_57-1.

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Wakiwaka, Hiroyuki. "Magnetic Application in Linear Motor." In Magnetic Material for Motor Drive Systems, 423–37. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9906-1_27.

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Tsukamoto, O., Y. Tanaka, K. Oishi, T. Kataoka, Y. Yoneyama, T. Takao, and S. Torii. "Development of Superconducting Linear Induction Motor." In Advances in Superconductivity II, 1047–50. Tokyo: Springer Japan, 1990. http://dx.doi.org/10.1007/978-4-431-68117-5_226.

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Sjölander, P. I., M. Hulliger, U. R. Windhorst, and E. Otten. "Non-Linear Summation in GTO Responses: Implications for Receptor Mechanisms." In Alpha and Gamma Motor Systems, 319–21. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1935-5_67.

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Liang, Xiao-Yue, Su Wang, and Xin-Gang Miao. "Research of a Linear Switched Reluctance Motor." In Advances in Intelligent Systems and Computing, 595–602. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18997-0_51.

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Lenin, N. C., P. Sanjeevikumar, Atif Iqbal, and Charles Mbohwa. "Linear Synchronous Reluctance Motor—A Comprehensive Review." In Advances in Systems, Control and Automation, 45–70. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4762-6_5.

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Rohde, Marieke. "Linear Synergies as a Principle in Motor Control." In Atlantis Thinking Machines, 67–83. Paris: Atlantis Press, 2010. http://dx.doi.org/10.2991/978-94-91216-34-3_4.

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Henneberger, G., and C. Reuber. "3D FEM Calculation of a Linear Synchronous Motor." In Electric and Magnetic Fields, 347–50. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1961-4_80.

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Lévine, Jean. "Displacements of a Linear Motor With Oscillating Masses." In Analysis and Control of Nonlinear Systems, 211–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00839-9_10.

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Hooper, Scott L., Christoph Guschlbauer, Marcus Blümel, Arndt von Twickel, Kevin H. Hobbs, Jeffrey B. Thuma, and Ansgar Büschges. "Muscles: Non-linear Transformers of Motor Neuron Activity." In Neuromechanical Modeling of Posture and Locomotion, 163–94. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-3267-2_6.

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Conference papers on the topic "Linear motor"

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Popham, Vernon W., Christopher C. Lawrenson, Ronald F. Burr, and Bart Lipkens. "Variable Gap-Reluctance Linear Motor With Application to Linear Resonance Compressors." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/nca-23518.

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Abstract Variable gap-reluctance linear motors operate on the principle of electromagnetic attraction across an air gap between a moving armature and a stator and coil, which minimizes reluctance or stored magnetic energy. The direction of motion, force and magnetic field are aligned and are perpendicular to the air gap. When the air gap and corresponding stroke are moderate, large amounts of force and power can be delivered from a compact design. Several sizes of a new variable gap-reluctance linear motor design have been developed, characterized and applied. Practical application is demonstrated for linear resonance diaphragm refrigerant and gas compressors. A leaf spring suspension is used to dynamically match the motor to the resonance compressor load. Analysis and experimental results are combined to develop and characterize both the basic motor and integrated compressor designs.
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Fo¨hse, Martin, Hans-D. Sto¨lting, Jens Edler, and Hans H. Gatzen. "A Batch Fabricated Linear Synchronous Motor." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41388.

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Micro electro-mechanical systems (MEMS) technology opens up new ways of miniaturizing electromagnetic motors. A very promising approach for building miniature linear actuators is to fabricate the stator as well as the traveler separately and merging the motor components in a microassembly process [1]. This paper describes design, fabrication, and evaluation results of a linear synchronous actuator following this basic approach.
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Bedenbecker, Matthias, Matthias Hahn, Christine Ruffert, and Hans H. Gatzen. "Linear Synchronous Micro Motor With Further Miniaturized Dimensions." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34677.

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When developing linear micro motors, the synchronous drive scheme is well suited since it offers relatively high driving forces while keeping the design, fabrication, and assembly relatively simple. After the feasibility of the application of the synchronous drive scheme in a micro motor was proven, a smaller version of the motor was developed to investigate this drive scheme’s miniaturization potential. Apart from scaling down the motor dimensions, further optimizations were applied using the results of FEM simulations. The micro motor was fabricated, assembled, and successfully tested. The results demonstrate that the synchronous linear micro motor was successfully scaled down. Furthermore, the results indicate that even a further miniaturization seems feasible.
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Al-Allaq, Aiman, and Nebojsa Jaksic. "Modeling and Simulation of a Superconductive Linear Motor." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10083.

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Abstract Recent work and advances have showed great development in the field of linear motors, one being the integration of superconductors with the design and implementation of linear motors. In this approach, instead of using the traditional metallic conductors for the motor stator and rotor (to create the electromagnetic core), it was proposed, that the use of superconductor wires would yield greater and more efficient motors. One of the advantages of having perfect conductivity is stronger and more consistent magnetic field for the motor, allowing by that greater transitional speeds. However, until now, there have been no reported designs that could be used in real-world applications. This work is based on an existing design. However, we create a design model of functional linear induction motor using high temperature superconductor wires for the magnetic core. Moreover, a comparison is made between the actual performance specifications (core current, magnetic flux, and magnetic force), with those obtained from experimental simulation methods (using ANSYS Electromagnetic suit or COMSOL Multiphysics software packages). The design model is tested to verify the simulation results, and its suitability for engineering applications.
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Cruise, R. J. "Linear synchronous motor hoists." In Eighth International Conference on Electrical Machines and Drives. IEE, 1997. http://dx.doi.org/10.1049/cp:19971084.

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Thornton, R. D. "Linear Synchronous Motor Design." In International Electric Machines and Drives Conference. IEEE, 2005. http://dx.doi.org/10.1109/iemdc.2005.195927.

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Hyder, Christoph, Garnett C. Horner, and William W. Clark. "Linear traveling wave motor." In 1999 Symposium on Smart Structures and Materials, edited by Jack H. Jacobs. SPIE, 1999. http://dx.doi.org/10.1117/12.351557.

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Shutov, M. V., E. E. Sandoz, D. L. Howard, T. C. Hsia, Rosemary L. Smith, and Scott D. Collins. "Miniature linear synchronous motor." In SPIE Proceedings, edited by Gregory H. Bearman and Patricia M. Beauchamp. SPIE, 2003. http://dx.doi.org/10.1117/12.520574.

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Yuying, Wang, Wen Hong, and Bu Tiewei. "Summarize of the Linear Motor." In 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM). IEEE, 2020. http://dx.doi.org/10.1109/wcmeim52463.2020.00121.

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Vaughan, Mark, and Donald J. Leo. "Integrated Piezoelectric Linear Motor for Vehicle Applications." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32942.

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The focus of this research was to create a linear motor that could easily be packaged and still perform the same task of the current DC motor linear device. An incremental linear motor design was decided upon, for its flexibility in which the motor can be designed. To replace the current motor it was necessary to develop a high force, high speed incremental linear motor. To accomplish this task, piezoelectric actuators were utilized to drive the motor due their fast response times and high force capabilities. The desired overall objectives of the research is to create an incremental linear motor with the capability of moving loads up to one hundred pounds and produce a velocity well over one inch per second. To aid the design process a lumped parameter model was created to simulate the motor’s performance for any design parameter. Discrepancies occurred between the model and the actual motor performance for loads above 9.1 kilograms (20 pounds). The resulting model, however, was able to produce a good approximation of the motor’s performance for the unloaded and lightly loaded cases. The incremental linear motor produced a velocity of 4.9 mm/sec (0.2 in/sec) at a drive frequency of 50 Hz. The velocity of the motor was limited by the drive frequency that the amplifiers could produce. The motor was found to produce a stall load of 17 kilograms (38 pounds). The stall load of the design was severely limited by clearance losses.
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Reports on the topic "Linear motor"

1

Ward, C. R. Linear Synchronous Motor Repeatability Tests. Office of Scientific and Technical Information (OSTI), October 2002. http://dx.doi.org/10.2172/803396.

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Holliday, Jeffrey C. Innovative Linear Reciprocating Motor Technology for Advanced Cryocooler Systems. Fort Belvoir, VA: Defense Technical Information Center, February 1994. http://dx.doi.org/10.21236/adb205134.

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Turman, B. N., B. M. Marder, G. J. Rohwein, D. P. Aeschliman, J. B. Kelley, M. Cowan, and R. M. Zimmerman. The pulsed linear induction motor concept for high-speed trains. Office of Scientific and Technical Information (OSTI), June 1995. http://dx.doi.org/10.2172/90379.

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Michael J. Crowley. IEMDC - In-Line Electric Motor Driven Compressor. US: Dresser-Rand Co, March 2004. http://dx.doi.org/10.2172/899855.

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Michael J. Crowley, Prem N. Bansal, and John E. Tessaro. IEMDC-IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/822925.

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Michael J. Crowley, Prem N. Bansal, and John E. Tessaro. IEMDC -IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR. Office of Scientific and Technical Information (OSTI), January 2004. http://dx.doi.org/10.2172/823493.

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Crowley, Michael J., Prem N. Bansal, and John E. Tessaro. IEMDC--IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR. Office of Scientific and Technical Information (OSTI), January 2004. http://dx.doi.org/10.2172/825145.

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Michael J. Crowley and Prem N. Bansal. IEMDC IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/835640.

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KOCH, M. R. Guidance for Flow Computer Setup on the Jet Pump Motor Recirculation Flow Line. Office of Scientific and Technical Information (OSTI), February 2000. http://dx.doi.org/10.2172/801354.

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Kueck, J., and C. Talbott. Analysis of production line motor failure. CRADA final report for CRADA number Y-1293-0215. Office of Scientific and Technical Information (OSTI), February 1995. http://dx.doi.org/10.2172/442126.

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