Relevant bibliographies by topics / Actuators - Design and construction

Academic literature on the topic 'Actuators - Design and construction'

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Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Actuators - Design and construction"

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Koo, Ja Choon, Hyouk Ryeol Choi, Min Young Jung, Kwang Mok Jung, Jae Do Nam, and Young Kwan Lee. "Design and Control of Three-DOF Dielectric Polymer Actuator." Key Engineering Materials 297-300 (November 2005): 665–70. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.665.

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Smart polymer based actuators have demonstrated various benefits over the traditional electromagnetic or piezoelectric-material actuators. One of the most significant contributions of the polymers is its soft actuation mechanisms. Hence morphological freedom for actuator construction benefits production of either small scale complex mechanisms or human-like applications. Although many actuation paradigms of polymer actuators are presented in various publications, no significant contributions are made for investigation of modeling and control methods of the material. In the present work, a smart polymer based actuator is constructed. It is then modeled and analyzed for feasible control scheme selection.
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Al-Ibadi, Alaa, Samia Nefti-Meziani, Steve Davis, and Theo Theodoridis. "Novel Design and Position Control Strategy of a Soft Robot Arm." Robotics 7, no. 4 (November 13, 2018): 72. http://dx.doi.org/10.3390/robotics7040072.

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This article presents a novel design of a continuum arm, which has the ability to extend and bend efficiently. Numerous designs and experiments have been done to different dimensions on both types of McKibben pneumatic muscle actuators (PMA) in order to study their performances. The contraction and extension behaviour have been illustrated with single contractor actuators and single extensor actuators, respectively. The tensile force for the contractor actuator and the compressive force for the extensor PMA are thoroughly explained and compared. Furthermore, the bending behaviour has been explained for a single extensor PMA, multi extensor actuators and multi contractor actuators. A two-section continuum arm has been implemented from both types of actuators to achieve multiple operations. Then, a novel construction is proposed to achieve efficient bending behaviour of a single contraction PMA. This novel design of a bending-actuator has been used to modify the presented continuum arm. Two different position control strategies are presented, arising from the results of the modified soft robot arm experiment. A cascaded position control is applied to control the position of the end effector of the soft arm at no load by efficiently controlling the pressure of all the actuators in the continuum arm. A new algorithm is then proposed by distributing the x, y and z-axis to the actuators and applying an effective closed-loop position control to the proposed arm at different load conditions.
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Janocha, H., B. Rech, and R. Bölter. "PRACTICE-RELEVANT ASPECTS OF CONSTRUCTING ER FLUID ACTUATORS." International Journal of Modern Physics B 10, no. 23n24 (October 30, 1996): 3243–55. http://dx.doi.org/10.1142/s0217979296001690.

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The flow resistance of electrorheological fluids (ER fluids) can be controlled by applying electric fields. Thus, ER fluids are suitable for the application in actuators, using high-voltage sources for the generation of the field. The behaviour of an ER fluid actuator not only depends on the properties of the individual actuator components (ER fluid, energy transducer and energy source) but especially on their combined efforts as a system. Based on a possible scheme for the design of ER fluid actuators, this paper presents important practice-relevant aspects of a systematic actuator construction. Here the behaviour of a commercial ER suspension is examined and compared to a homogeneous ER fluid without yield point using a rotational viscometer and a flow-mode damper realized at the Laboratory of Process Automation (LPA) of the University of Saarland.
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Bernat, Jakub, and Jakub Kołota. "Modeling of Dielectric Electroactive Polymer Actuators with Elliptical Shapes." Energies 14, no. 18 (September 8, 2021): 5633. http://dx.doi.org/10.3390/en14185633.

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Dielectric electroactive polymers have been widely used in recent applications based on smart materials. The many advantages of dielectric membranes, such as softness and responsiveness to electric stimuli, have lead to their application in actuators. Recently, researchers have aimed to improve the design of dielectric electroactive polymer actuators. The modifications of DEAP actuators are designed to change the bias mechanism, such as spring, pneumatic, and additional mass, or to provide a double cone configuration. In this work, the modification of the shape of the actuator was analyzed. In the standard approach, a circular shape is often used, while this research uses an elliptical shape for the actuator. In this study, it was shown that this construction allows a wider range of movement. The paper describes a new design of the device and its model. Further, the device is verified by the measurements.
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Zhang, Xing, Wei Wang, and Guang Hua Zong. "The Application of Piezoelectric Actuator for Small Aircraft." Advanced Materials Research 998-999 (July 2014): 674–77. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.674.

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This paper describes the design, construction, and analysis of a new piezoelectric actuator design for small aircrafts in the special requirements of the steering weight. It describes the working principle of piezo actuator, optimizes the piezo chip specification parameters by experimental measurements, put forward the finite element analysis simulation and the experimental testing of piezoelectric actuators’ drive performance. The simulation and experimental results show that the new design meets the design requirements of weight and space control.
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Hatala, Michal, Miroslav Mičko, Ľubomir Olexa, Peter Michalik, Ján Čisár, and Pavel Kokuľa. "Design of Module of Moving Robot." Applied Mechanics and Materials 616 (August 2014): 93–100. http://dx.doi.org/10.4028/www.scientific.net/amm.616.93.

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Article deals with the design of module walking robot. When designing a walking robot construction is an important to choose correct structure of the body and legs. In practice, are mostly used constructions with the numbers of feet two, four and six. Selected variant was subsequently analyzed and optimized and was assigned appropriate material. Based on the measurements and the subsequent comparison of the results was designed suitable actuators for selected modes of motion.
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Krivts, Igor L. "New Pneumatic Cylinders for Improving Servo Actuator Positioning Accuracy." Journal of Mechanical Design 126, no. 4 (July 1, 2004): 744–47. http://dx.doi.org/10.1115/1.1737380.

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Positioning accuracy of pneumatic servo actuators depends on parameters of the actuator and control system, and also on the friction force. This paper reports on new constructions of the pneumatic cylinders, which are the integral part of the servo actuator. Experimental examination of these servo actuators has shown that they could provide improved accuracy performance over the system with ordinary pneumatic cylinder.
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Kheirikhah, Mohammad Mahdi. "Design and construction of an artificial finger based on SMA actuators." Indian Journal of Science and Technology 6, no. 1 (January 20, 2013): 1–8. http://dx.doi.org/10.17485/ijst/2013/v6i1.1.

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WOLFF, C. "Closed Loop Controlled ER-Actuator." International Journal of Modern Physics B 10, no. 23n24 (October 30, 1996): 2867–76. http://dx.doi.org/10.1142/s0217979296001318.

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The results of the investigation regarding the suitability of ERF when applied in hydraulics have shown so far that constructing electrorheological flow resistors for the control of pressure and volume flow is possible in principle. One of the main advantages when using the ER-technology in hydraulic systems can be seen in the high reaction rate of the ER-effect. The investigations presented in this article document the dynamic qualities of ER-fluids by means of a practical exploitation for the control of a cylinder actuator. Due to the particular possibilities for design of ER-control resistors a compact cylinder has resulted which differs considerably from traditional cylinder actuators in its construction and dynamic behaviour.
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Chiarello, Eduardo, and Juliana Almansa Malagoli. "Optimal Coil Design of an Electromagnetic Actuator Using Particle Swarm Optimization." Journal Européen des Systèmes Automatisés 53, no. 6 (December 23, 2020): 755–61. http://dx.doi.org/10.18280/jesa.530601.

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This paper aims to reduce the heating of the electromagnetic actuators of a magnetic bearing. The electrical current of the coils was above normal, so the need for a new coil design to reduce heating due to high currents. In this scenario, the proposed methodology allows minimizing copper losses using Particle Swarm Optimization, so that the best result of the design parameters will be used in the construction of the new coil for the actuator. For the development of this work, it was decided to use a computational tool for public use, FEMM (Finite Element Method Magnetics) to simulate the electromagnetic device. In the simulations, the densities of magnetic fluxes in the core and in the air gap are shown, as well as the energies, electromagnetic forces and losses in the copper of the electromagnetic actuator winding. Finally, an optimal model of the actuator is obtained through the use of optimization techniques. Therefore, the results obtained demonstrate that the proposed methodology is configured as an interesting strategy for the purpose of this work.
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Dissertations / Theses on the topic "Actuators - Design and construction"

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Wan, Weijie 1982. "Simulation and optimization of MEMS actuators and tunable capacitors." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99798.

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Micro-Electro-Mechanical Systems (MEMS) have played an important role in modern microelectronics, thermal, mechanical and hybrid systems. MEMS technology is a very promising means that might have a great impact on almost every corner of the society. Although many design methodology of MEMS already exists, not as much attention was given to the synthesis and optimization of MEMS devices. This thesis focuses on the optimization of MEMS actuators and MEMS tunable comb drive capacitors. The optimization is based on changing device geometry to achieve desired output parameter profile. For example in the design of MEMS tunable comb drive capacitors, the output parameter is the capacitance tuning range. Numerical experiments were performed to show the successful implementation of the optimization method.
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Hopkinson, David P. "Development of stress gradient enhanced piezoelectric composite unimorph actuators." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/16372.

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McCray, Thomas Wade. "Construction and characterization of removable and reusable piezoelectric actuators." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06232009-063342/.

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Wei, Yu Zhang. "Design and development of new micro-force sensors." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3691170.

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Tognetti, Lawrence Joseph. "Actuator design for a haptic display." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/16926.

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Wu, Zhi Gang. "Design, analysis and experiment of novel compliant micromanipulators with grippers driven by PZT actuators." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3691021.

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Creyts, Don Stafford IV. "Design and fabrication of a MEMS magnetic bistable valve." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17950.

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Hudson, Tina Ann. "A biomorphic integrated-circuit implementation of muscular contraction." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/14976.

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Oates, William Sumner. "Piezoelecytric pump design and system dynamic model." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17679.

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Webber, Kyle Grant. "Characterization of Actuation and Fatigue Properties of Piezoelectric Composite Actuators." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7127.

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Epoxy composite laminated piezoelectric stress-enhanced actuators (ECLIPSE) have been developed for potential applications by the United States Air Force and others. This class of actuators offers several advantages over other unimorph actuators such as lighter weight, design flexibility, and short production time. Anisotropic differential thermal expansion is utilized in the design of the actuators to achieve large out-of-plane curvature and place the brittle piezoelectric ceramic in residual compression. The numerous composite material choices and configurations can be used to control characteristics of the actuator such as radius of curvature and force output. ECLIPSE actuators were characterized during this study. They were made from layers of Kevlar 49/epoxy composite and a lead zirconate titanate ceramic (PZT) plate. All ECLIPSE actuators tested were built with a PZT plate with the same dimensions and material, but had different layup configurations. By changing the stacking order of the composite and PZT material, characteristics of the actuator were altered. The performance of each ECLIPSE actuator was compared. The maximum achievable displacement of each actuator was measured by cyclically applying an electric field at low frequency between zero and the maximum electric field allowable for the piezoelectric material. The frequency was also increased to a resonance condition to characterize the fatigue behavior of these actuators. In addition, the force output of various actuators was measured with a four-point bending apparatus. The experimental data was compared to a classical lamination theory model and an extended classical lamination theory model. These models were used to predict actuator behavior as well as to calculate the stress and strain distribution through the thickness of the actuator.
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Books on the topic "Actuators - Design and construction"

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Yan, Liang. Design, Modeling and Experiments of 3-DOF Electromagnetic Spherical Actuators. Dordrecht: Springer Science+Business Media B.V., 2011.

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International Conference on Developments in Valves & Actuators for Fluid Control (1985 Oxford, Oxfordshire). Papers presented at the International Conference on the Development in Valves & Actuators for Fluid Control, Oxford, England 10-12 September 1985. Edited by Pickford Rosemary, British Valve Manufacturers' Association, Institution of Mechanical Engineers (Great Britain), and BHRA (Association). Cranfield: BHRA, 1985.

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Wittstock, Volker. Piezobasierte Aktor-Sensor-Einheiten zur uniaxialen Schwingungskompensation in Antriebssträngen von Werkzeugmaschinen. Zwickau: Wissenschaftliche Scripten, 2007.

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International, Conference on Developments in Valves &. Actuators for Fluid Control (1988 Manchester England). Proceedings of the 2nd International Conference on Developments in Valves and Actuators for Fluid Control, Manchester, England: 28-30 March 1988. Cranfield: BHRA, 1988.

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C, Chenoweth C., ed. Aircraft flight control actuation system design. Warrendale, PA: Society of Automotive Engineers, 1993.

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Getting started with the Internet of Things. Sebastopol, CA: O'Reilly Media, 2011.

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Bellouard, Yves. Optomechatronic actuators and manipulation III: 8-10 October 2007, Lausanne, Switzerland. Edited by Society of Photo-optical Instrumentation Engineers, École polytechnique fédérale de Lausanne, France. Commissariat à l'énergie atomique. Laboratoire d'intégration des systèmes et des technologies, and Fondation suisse pour la recherche en microtechnique. Bellingham, Wash: SPIE, 2007.

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Society of Photo-optical Instrumentation Engineers, École polytechnique fédérale de Lausanne, France. Commissariat à l'énergie atomique. Laboratoire d'intégration des systèmes et des technologies, and Fondation suisse pour la recherche en microtechnique, eds. Optomechatronic actuators and manipulation III: 8-10 October 2007, Lausanne, Switzerland. Bellingham, Wash: SPIE, 2007.

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1938-, Huijsing Johan H., Steyaert Michiel 1959-, and Roermund, Arthur H. M. van., eds. Analog circuit design: Sensor and actuator interface electronics, integrated high-voltage electronics and power management, low-power and high-resolution ADC's. Boston: Kluwer Academic, 2004.

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Yukitoshi, Otani, and SPIE (Society), eds. Optomechatronic technologies 2008: 17-19 November 2008, San Diego, California, USA. Bellingham, Wash: SPIE, 2008.

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Book chapters on the topic "Actuators - Design and construction"

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Özdemir, E., L. Kiesewetter, K. Antorveza, T. Cheng, S. Leder, D. Wood, and A. Menges. "Towards Self-shaping Metamaterial Shells:." In Proceedings of the 2021 DigitalFUTURES, 275–85. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5983-6_26.

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AbstractDouble curvature enables elegant and material-efficient shell structures, but their construction typically relies on heavy machining, manual labor, and the additional use of material wasted as one-off formwork. Using a material’s intrinsic properties for self-shaping is an energy and resource-efficient solution to this problem. This research presents a fabrication approach for self-shaping double-curved shell structures combining the hygroscopic shape-changing and scalability of wood actuators with the tunability of 3D-printed metamaterial patterning. Using hybrid robotic fabrication, components are additively manufactured flat and self-shape to a pre-programmed configuration through drying. A computational design workflow including a lattice and shell-based finite element model was developed for the design of the metamaterial pattern, actuator layout, and shape prediction. The workflow was tested through physical prototypes at centimeter and meter scales. The results show an architectural scale proof of concept for self-shaping double-curved shell structures as a resource-efficient physical form generation method.
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Schomburg, Werner Karl. "Thermal Actuators." In Introduction to Microsystem Design, 159–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19489-4_13.

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Schomburg, Werner Karl. "Thermal Actuators." In Introduction to Microsystem Design, 201–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47023-7_14.

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Otake, Mihoko. "Motion Design-A Gel Robot Approach." In Soft Actuators, 343–54. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54767-9_25.

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Otake, Mihoko. "Motion Design-A Gel Robot Approach." In Soft Actuators, 429–40. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6850-9_26.

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Takashima, Yoshiyuki, Kaoru Uesugi, and Keisuke Morishima. "Construction and Functional Emergence of Bioactuated Micronanosystem and Living Machined Wet Robotics." In Soft Actuators, 723–40. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6850-9_41.

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Maisel, Jordana L., Edward Steinfeld, Megan Basnak, Korydon Smith, and M. Beth Tauke. "Construction." In Inclusive Design, 97–124. New York : Routledge, 2017. | Series: PocketArchitecture : technical design series: Routledge, 2017. http://dx.doi.org/10.4324/9781315712437-4.

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Chappell, David. "Design." In Construction Contracts, 90–102. Fourth edition. | Abingdon, Oxon; New York: Routledge, 2021.: Routledge, 2020. http://dx.doi.org/10.1201/9781003080930-10.

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Chappell, David. "Design." In Construction Contracts, 90–102. Fourth edition. | Abingdon, Oxon; New York: Routledge, 2021.: Routledge, 2020. http://dx.doi.org/10.4324/9781003080930-10.

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Shinkai, Seiji, Masayuki Takeuchi, and Atsushi Ikeda. "Molecular Machines Useful for the Design of Chemosensor." In Polymer Sensors and Actuators, 183–206. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04068-3_6.

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Conference papers on the topic "Actuators - Design and construction"

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Guckel, H., D. W. Burns, and C. R. Rutigliano. "DESIGN AND CONSTRUCTION TECHNIQUES FOR PLANAR POLYSILICON PRESSURE TRANSDUCERS WITHPIEZORESISTIVE READ-OUT." In 1986 Solid-State, Actuators, and Microsystems Workshop. San Diego, CA USA: Transducer Research Foundation, Inc., 1986. http://dx.doi.org/10.31438/trf.hh1986.2.

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Håkansson, L., I. Claesson, L. Pettersson, and T. Lagö. "Active Control Machine Tool Chatter Piezo Ceramic Actuators in Tool Holder Shank." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8307.

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Abstract In the turning operation chatter or vibration is a frequent problem, which affects the result of the machining, and, in particular, the surface finish. Tool life is also influenced by vibration. Severe acoustic noise in the working environment frequently occurs as a result of dynamic motion between the cutting tool and the workpiece. These problems can be reduced by active control of machine-tool vibration. Adaptive feedback control based on the filtered-x LMS-algorithm, enables a reduction of the vibration by up to 40 dB at 1.5 kHz and by approximately 40 dB at 3 kHz. The active control performed a broadband attenuation of the sound pressure level by up to 35 dB. A significant improvement of the work-piece surface was also observed. In the active control of tool vibration a tool holder construction based on integrated high magnetostrictive actuators was used. However, both the physical features and properties of a active tool holder construction based on high magnetostrictive actuators and the fact that this type of actuators generally have a non-linear behaviour highly reduce its applicability to the general lathe and turning operation. Therefor, a new generation embedded active tool holder shanks based on piezo ceramic actuators have been developed. Based on spectrum estimates, both coherence spectrum and frequency response function estimates has been calculated for both the old tool holder construction and the new generation active tool holder shank. From the results it follows that the phase delay is smaller and the linearity of the new generation active tool holder shank are superior compared to the old technology. It is also obvious that physical features and properties of new generation embedded active tool holder shanks based on piezo ceramic actuators fits the general lathe application.
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Stryczek, Piotr, Franciszek Przystupa, and Michał Banaś. "Design and Research on a Hydraulic Cylinder With Plastic Components." In 9th FPNI Ph.D. Symposium on Fluid Power. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fpni2016-1508.

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In mechanical engineering, there is a trend to use new materials which are an alternative to metals. This also applies to construction components and hydraulic systems, where more and more attempts are made to use plastics as construction material. This solution brings design, technological and economic benefits. The researchers from the Fluid Power Research Group of the Department of the Fundamentals of Machine Design and Tribology from Wroclaw University of Technology (www.fprg.pwr.wroc.pl), are working in this area, with an objective to create a complete hydraulic system whose basic elements such as the pump, valve and actuator are, entirely or in their substantial part, made of plastics. The paper presents the course and outcome of the design process and the research, the aim of which was to prepare a demonstration model of the hydraulic cylinder made of plastics. The work on the model of the actuator started from an analysis of traditional methods of designing hydraulic cylinders made of metal. The authors analyzed the course of the design process, paying particular attention to aspects of the strength of the actuators’ structure. It highlights the main elements and the important nodes occurring in the hydraulic cylinders, namely the sleeve, the bottom, the head, the piston, the piston rod, the fasteners, the hydraulic fluid ducts, the sealing, and the bolts. An algorithm for the procedure in a form of a block diagram was presented, and the necessary calculations were made. Taking the characteristics of the actuator and its respective nodes into consideration, it was found that a number of metal parts may be replaced by plastics. The result of the operations performed is the proposal of a model of the actuator elements made of plastics. For this solution, a 3D computer model was prepared and studied by means of the FEM. The obtained results allowed the identification of the place, the nature and the value of deformation. Based on the results of the theoretical research, it was found that the structure of the actuator will not be effected in the course of its work in the assumed conditions. A demonstration model of the actuator was created according to initial assumptions. The next step was to prepare and conduct preliminary studies on the actual model. The first tests were carried out with no load being applied. The tests were made with different speeds of the piston rod’s movement and the operation of the actuator was observed. Next, tests of the loaded actuator model were conducted. For that purpose, it was put on a special stand with a metal actuator in such a way that a linear displacement of the two rods along a common axis was provided. In that system, the conventional actuator enabled the loading of the model’s piston rod. Tests were carried out at different values of pressure and speed within the full motion range. Based on the prototype’s volumetric efficiency measurement results, the operation of the tested actuator featuring the elements made of plastic was proved correct. The theoretical and experimental research on the hydraulic actuator confirm the possibility of applying plastics as a construction material in devices of that type. The use of the actuators’ design algorithm showed that it can provide a theoretical basis for the design method of the actuators made of plastics. The algorithm, however, requires modifications taking into account the special properties of plastics due to their anisotropic nature. The development of a definitive method is planned in the context of further research. Additionally, the future development of a design solution for a cylinder of smaller dimensions, which could provide an alternative to traditional low-pressure actuators or pneumatic actuators. The future research direction is the analysis of the processes taking place in the individual parts of the plastic cylinders. A challenge of some kind may be to select sealing’s that will ensure long and trouble-free operation of the actuators.
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Kazerooni, H., and S. Kim. "Design and Construction of a Statically-Balanced Direct Drive ARM." In ASME 1987 Design Technology Conferences. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/detc1987-0058.

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Abstract A statically-balanced direct drive robot manipulator is being constructed at the University of Minnesota for analysis of manufacturing tasks such as deburrlng and grinding when Impedance Control (8, 10, 11) is used to control the robot. This mechanism using a four bar linkage is designed without extra counterweights. As a result of elimination of the gravity forces on the drive system, smaller actuators (and consequently smaller amplifiers) are chosen to guarantee the acceleration of about 5g without overheating the motors. This mechanism results in closed-form solution for Inverse kinematics. The closed-form solutions for dynamic and Inverse kinematic have been derived. High torque, low speed brush-less AC synchronous motors are used to power the robot. The relatively “large” workspace of this configuration is suitable for manufacturing tasks. Graphite epoxy composite material is being used for the construction of the robot links.
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Rastegar, Jahangir, and Dake Feng. "On the Development of a Novel Class of “Mechanical Stepper Motors”." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35132.

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The development of a novel class of actuation devices, referred to as “mechanical stepper motors”, which can be constructed to provide high-force linear or high-torque rotary motion is presented. The operation of this novel class of mechanical stepper motor type actuators is based on the principles of operation of a simple Vernier. The actuators may be constructed to provide multiple step sizes. The motion generation mechanism of the stepper motors may be designed to lock the actuator at each motion step, thereby providing the actuator with a built-in precision in-position braking mechanism. The actuators may be powered pneumatically, hydraulically, electrically or via gas-generating charges. The actuators operating pneumatically or hydraulically may be constructed with non-metallic materials and be fully submersible, making them particularly suitable for use in medical, food, beverage and chemical industries and where electricity poses fire or explosion hazard. In this paper, the basic design and operation of this novel class of mechanical stepper motors are described. As examples of such mechanical stepper motors, the details of the design and construction of a linear and a rotary mechanical stepper motor and their characteristic are provided.
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Spaggiari, Andrea, and Eugenio Dragoni. "Multiphysics Modelling and Design of Shape Memory Alloy Wave Springs as Linear Actuators." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3711.

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This paper explores the merits of shape memory wave springs as powering elements of solid state actuators. Advantages and disadvantages of the wave construction in comparison to the traditional helical shape are presented and discussed by means of dimensionless functions. The main assets of the wave springs are the higher electrical resistance (leading to simpler electrical drives) and the lower cooling time (leading to enhanced working frequency). The wave geometry is also superior in purely mechanical terms to the helical counterpart when axial space is at a premium. A step-by-step design procedure is proposed, leading to the optimal wave spring meeting the multiphysics design specifications and constraints. A case study is finally reported, showing the application of shape memory wave springs to the design of a telescopic linear actuator.
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McKenzie, J. S. "Design and construction of a micromechanical optical actuator." In IEE Colloquium on `Active Drives for Microengineering Applications'. IEE, 1995. http://dx.doi.org/10.1049/ic:19950573.

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Ryu, Semin, Jeong-Hoi Koo, Tae-Heon Yang, Dongbum Pyo, Ki-Uk Kyung, and Dong-Soo Kwon. "Design and Evaluation of a Haptic Keypad System for Realistic Touch Interaction." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7461.

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This paper presents design and testing of a haptic keypad system using an array of haptic actuators. The research goals are to construct a prototype haptic keypad system using haptic actuators and to evaluate the performance of the prototype keypad for haptic rendering. To this end, an MR haptic actuator was designed and fabricated such that it can convey realistic force feedback to users. To demonstrate haptic applications of the MR actuator, a haptic keypad system was constructed, which consists of following components: (1) 3 × 3 array of haptic actuators, (2) 3 × 3 array of force sensing resistors (FSR), (3) a controller including a micro-processor, a current amplifier and a wireless communication module, (4) a graphic display unit with PC. After constructing a prototype keypad system, a haptic rendering technology was employed to interface the hardware keypad system with test software (virtual environment). The prototype system enabled human operators to interact with the target contents in a virtual environment more intuitively. The evaluation results show a feasibility of applications of MR fluids-based haptic actuators in real-world mobile applications.
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Wojciechowski, Jakub, Arkadiusz Pietrowiak, Olaf Ciszak, and Marcin Wiśniewski. "Modular Flexible Production System: Construction and Application in Education." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47262.

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This paper deals with the application of the flexible production system in the education of students of different specialties. System allows for the provision of teaching in the same facilities, both for the students of specialized field of study like Mechatronics and such as introductory courses in production management methods for students of Management. The biggest advantage of this system is its modularity allows for any change in the system without having to redesign actuators. These advantages are result of use a lot of flexible solutions, what was precisely described. Line construction involves the cooperation of all the elements, with particular emphasis on robots cooperate with vision system. This will be discussed on the example of the tasks of varying difficulty and educational purpose, implemented using a modular flexible production system.
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Motzki, Paul, Rouven Britz, and Stefan Seelecke. "Modular SMA-Based Bi-Directional Rotational Actuator." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9017.

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State-of-the-art actuators that produce rotatory motion and torsional moment are based on either combustion engines, electro-motors, hydraulic or pneumatic machines. Each of these actuation methods has several drawbacks. All of these systems often come with high initial costs, big weight and need a lot of construction space because of their dimensions. Shape memory alloys are known for their superior energy density. That allows for the construction of very compact and light-weight actuator systems. In this paper, the design and construction of a light weight rotational actuator based on SMA wires is presented. The design is based on a modular concept, with each module contributing to the total rotational radius. This way, the actuator can be custom fitted to specific application needs.
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Reports on the topic "Actuators - Design and construction"

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Pfaeffle, H. J., Dimitris C. Lagoudas, Iradj Tadjbakhsh, and Kevin C. Craig. Design of Flexible Rods with Embedded SMA Actuators. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada260742.

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CORPS OF ENGINEERS WASHINGTON DC. Construction: Design and Construction Evaluation (DCE). Fort Belvoir, VA: Defense Technical Information Center, February 1996. http://dx.doi.org/10.21236/ada404141.

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Chattopadhyay, Aditi, and Dan Dragomir. Modeling, Analysis and Design of SMART Composite Structures and Cuirved Actuators. Fort Belvoir, VA: Defense Technical Information Center, July 2001. http://dx.doi.org/10.21236/ada399729.

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Oates, William S., Phillip G. Evans, Ralph C. Smith, and Marcelo J. Dapino. Experimental Implementation of a Hybrid Nonlinear Control Design for Magnetostrictive Actuators. Fort Belvoir, VA: Defense Technical Information Center, January 2006. http://dx.doi.org/10.21236/ada459020.

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Fanella, David A., Amaldo T. Derecho, and S. K. Ghosh. Design and construction of structural systems. Gaithersburg, MD: National Institute of Standards and Technology, 2005. http://dx.doi.org/10.6028/nist.ncstar.1-1av1.

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Slocum, Alexander H., Laura A. Demsetz, David H. Levy, and Bruce Schena. Design Methodology for Automated Construction Machines. Fort Belvoir, VA: Defense Technical Information Center, December 1987. http://dx.doi.org/10.21236/ada207386.

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Collins, James J. Design and Construction of Genetic Applets. Fort Belvoir, VA: Defense Technical Information Center, May 2003. http://dx.doi.org/10.21236/ada417910.

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Jackson, J. G. Y-12 Sustainable Design Principles for Building Design and Construction. Office of Scientific and Technical Information (OSTI), November 2008. http://dx.doi.org/10.2172/969028.

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CORPS OF ENGINEERS WASHINGTON DC. Engineering and Design. Construction with Large Stone. Fort Belvoir, VA: Defense Technical Information Center, October 1990. http://dx.doi.org/10.21236/ada402849.

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McNeese, L. E. ORNL engineering design and construction reengineering report. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/631227.

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