Relevant bibliographies by topics / Dynamometers

Contents

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

Academic literature on the topic 'Dynamometers'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Dynamometers"

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Flood-Joy, Maureen, and Virgil Mathiowetz. "Grip-Strength Measurement: A Comparison of Three Jamar Dynamometers." Occupational Therapy Journal of Research 7, no. 4 (July 1987): 235–43. http://dx.doi.org/10.1177/153944928700700405.

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These two studies evaluated whether three types of Jamar dynamometers measured equivalently. In study A, 26 subjects were tested on 2 types; in study B, 30 subjects were tested on 3 types. Both studies found significant differences between and among the dynamometers. Therapists can no longer assume that all versions of the Jamar dynamometer measure equivalently, and the differences should be taken into account when using normative data and when assessing treatment effectiveness. In the latter case, the same dynamometer must be used for pre- and posttesting.
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P, Mafi, Mafi R, Hindocha S, Griffin M, and Khan W. "A Systematic Review of Dynamometry and its Role in Hand Trauma Assessment." Open Orthopaedics Journal 6, no. 1 (February 23, 2012): 95–102. http://dx.doi.org/10.2174/1874325001206010095.

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The dynamometer was developed by American neurologists and came into general use in the late 19th century. It is still used in various ways as a diagnostic and prognostic tool in clinical settings. In this systematic review we assessed in detail the different uses of dynamometry, its reliability, different dynamometers used and the influence of rater experience by bringing together and evaluating all published literature in this field. It was found that dynamometry is applied in a wide range of medical conditions. Furthermore, the great majority of studies reported acceptable to high reliability of dynamometry. Jamar mechanical dynamometer was used most often in the studies reviewed. There were mixed results concerning the effect of rater experience. The factors influencing the results of dynamometry were identified as age, gender, body weight, grip strength, BMI, non/dominant hand, assessing upper/lower limbs, rater and patient’s strength and the distance from the joint where the dynamometer is placed. This review provides an understanding of the relevance and significance of dynamometry which should serve as a starting point to guide its use in hand trauma assessment. On the basis of our findings, we suggest that hand dynamometry has a great potential, and could be used more often in clinical practice.
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Turusheva, Anna V., Elena V. Frolova, and Jean-Marie Degryse. "Comparison of measurement results are obtained with dynamometers DK-50 and JAMAR® Plus." Russian Family Doctor 22, no. 1 (March 15, 2018): 12–17. http://dx.doi.org/10.17816/rfd2018112-17.

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Introduction. Grip strength is a reflection not only of the strength of the hands, but also the strength of the muscles of the whole body, the functional capabilities of the body and an important diagnostic marker of the overall health of a person. The aim of this work was to compare the measurements obtained with the DK-50 and JAMAR® Plus digital handheld dynamometers.Methods. A convenience sample was used of 94 health participants, men and women, aged from 15 to 65 years old. Grip strength of a dominant hand was conducted using a carpal mechanical dynamometer DK-50 (Nizhni Tagil, Russian Federation) and JAMAR® Plus digital handheld dynamometer. The simple Pearson correlation test, linear regression method and the procedure of Bland and Altman were used to estimate difference between an average value of results of measurements of grip strength (AGS) and maximum measurement of grip strength (MGS) of the dominant hand of two dynamometers.Results. The grip strength using JAMAR® Plus dynamometer was higher than with the DK-50 dynamometer by 5.6 ± 4.2 kg for the average grip strength (AGS) and by 6.7 ± 4.3 kg for the maximum grip strength (MGS). The formulas for transferring the data of the car dynamometry of the DK-50 dynamometer to the values obtained from the JAMAR® Plus dynamometer are calculated: AGS JAMAR® Plus == 1,7874 + 1,1208 × AGS DK-50 and MGS JAMAR® Plus = 1.7667 + 1, 1275 × MGS DK-50.Conclusion. For avoiding errors in the interpretation of the results from different studies, it is necessary to take into account which type of dynamometer was used. The resulting formulas (AGS JAMAR® Plus == 1,7874 + 1,1208 × AGS DK50 and MGS JAMAR® Plus = 1,7667 + 1,1275 × MGS DK50) can be used to correct the data of the dynamometer DK-50 for value of JAMAR® Plus dynamometer and to compare the results of Russian studies with data from foreign studies organized using JAMAR® Plus dynamometers. (For citation: Turusheva AV, Frolova EV, Degryse J-M. Comparison of measurement results are obtained with dynamometers DK-50 and JAMAR® Plus. Russian Family Doctor. 2018;22(1):12-17. doi 10.17816/RFD2018112-17).
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French, M., and A. Stark. "CHASSIS DYNAMOMETERS." Experimental Techniques 24, no. 4 (July 2000): 45–46. http://dx.doi.org/10.1111/j.1747-1567.2000.tb00926.x.

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Fofanov, O. N., T. Yu Loskutova, and G. M. Tkachenko. "Universal dynamometers." Measurement Techniques 32, no. 8 (August 1989): 801–3. http://dx.doi.org/10.1007/bf02110500.

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Raine, J. K., and P. G. Hodgson. "Computer Simulation of a Variable Fill Hydraulic Dynamometer; Part 1: Torque Absorption Theory and the Influence of Working Compartment Geometry on Performance." Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 205, no. 3 (May 1991): 155–63. http://dx.doi.org/10.1243/pime_proc_1991_205_106_02.

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A mathematical model of the steady state torque absorption process in variable fill hydraulic dynamometers is described. This is the initial part of a general model that has been developed to simulate the dynamic behaviour of Froude-type dynamometers under open-loop control and of an engine/dynamometer system under various closed-loop control modes. In this paper, the equations for steady state torque, energy dissipation, fluid vortex pressure in the working compartment and water outflow from the dynamometer are presented. Predictions by the model for the special case of characteristic running full torque absorption performance are compared with experimental test bed results for different working compartment geometries. Effects of vane angle and working fluid properties on maximum torque capability are examined. Subsequent parts of this paper will address the dynamic variable fill simulation.
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Svens, Birgit, and Hoe Lee. "Intra- and inter-instrument reliability of Grip-Strength Measurements: GripTrack™ and Jamar® hand dynamometers." British Journal of Hand Therapy 10, no. 2 (June 2005): 47–55. http://dx.doi.org/10.1177/175899830501000202.

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The purpose of this research was to compare the computer-connected GripTrack dynamometer and the manual Jamar dynamometer to determine the intra- and inter-instrument reliability. Using a repeated-measures design the instruments were calibrated three times. Forty-six uninjured female health workers (mean age 29.7 years) performed three consecutive grip strength trials per hand and per instrument with the handle bar in the second position, alternating which dynamometer was used first. Intra-instrument reliability and concurrent validity were tested using certified standard weights. Both the Jamar dynamometer and GripTrack dynamometer demonstrated concurrent validity with certified standard weights (Jamar r = 1.0, GripTrack dynamometer r ≥ 0.9994). While inter-instrument reliability was good, starting with the Jamar dynamometer as the first instrument (ICC 0.80 to 0.83), and excellent, starting with the GripTrack dynamometer (ICC 0.94 to 0.95), the Bland and Altman method of analysing the differences between the two instruments’ grip strength readings revealed instrument bias. The large spread of limits of agreement from –2.37 kg to 7.87 kg (± 2 SD from the mean 2.75 kg) suggests variation in readings of up to 10.24 kg. While both dynamometers retain adequate calibration, the human interfaces are sufficiently different to cause large differences in readings between the dynamometers, making them non-interchangeable.
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Plint, M. A., and A. J. Martyr. "Technical Note: Some limitations of the chassis dynamometer in vehicle simulation." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 215, no. 3 (March 1, 2001): 431–37. http://dx.doi.org/10.1243/0954407011525647.

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The chassis dynamometer is the standard tool for legislatively prescribed emission tests. For emission testing and many other vehicle test purposes the dynamic response is an adequate approximation to ‘on road’ conditions. This is not necessarily true if the requirement is to study vehicle driveline dynamics. The present analysis arose from two quite separate requirements to study driveline oscillations and ‘judder’ using chassis dynamometers of the same eVective inertia as the vehicle. During the studies by the authors it became clear that the dynamics of the vehicle-dynamometer combination diVer in important respects from those of a vehicle on the road. As the eVective inertia of the dynamometer falls the natural frequency of the engine-driveline-vehicle system rises while the oscillatory energy imparted to the vehicle falls rapidly. For reasonably accurate simulation of driveline vibration the roll inertia should be some five times that of the vehicle. It is shown that electrical simulation of inertia, as employed in most modern chassis dynamometers, is unsatisfactory where oscillatory phenomena are being studied.
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Spengler, Dan M., and Gunnar B. J. Andersson. "Dynamometers and Exaggeration." Back Letter 5, no. 4 (February 1991): 7. http://dx.doi.org/10.1097/00130561-199102000-00009.

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Sunde, Douglas. "Accuracy of dynamometers." Journal of Hand Surgery 18, no. 1 (January 1993): 171. http://dx.doi.org/10.1016/0363-5023(93)90279-c.

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Dissertations / Theses on the topic "Dynamometers"

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Matthews, Christian. "Identification and robust control of automotive dynamometers." Thesis, University of Liverpool, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486431.

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Hodgson, Paul. "Theoretical model and dynamic simulation of variable fill hydraulic dynamometers." Thesis, University of Canterbury. Department of Mechanical Engineering, 1991. http://hdl.handle.net/10092/4487.

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The torque characteristics of variable fill hydraulic dynamometers are investigated, particularly the phenomenon of self-emptying of Froude F type machines under open loop control. An integrated one-dimensional model is adapted from fluid coupling and torque converter theory to cover the steady-state case, and extended to the non-linear open loop dynamic cases by incorporating varying fluid fill and the dynamic governing equations for dynamometers. Two feedback systems are included to predict the closed loop behaviour of the machines. The effect of geometriC variations on the steady-state torque capacity of dynamometers is given and the cause of the self-emptying phenomenon determined. It is found that the increase in working compartment fluid pressure with shaft speed leads to the fluid outflow rate becoming greater than the supplied inflow rate. Thus the fluid fill decreases. This phenomenon is further investigated using a dynamic model, consisting of a system of first order differential equations. The Adams-Bashforth Predictor Adams-Moulton Corrector numerical method is used to solve the system of equations. In addition to the self-emptying characteristic investigation, the differences between steady state and dynamic model predictions and the system responses to changes of set point and disturbances of its inputs (driving torque, outflow valve position, fluid inflow rate) are studied. To enable closed loop performance prediction, models of two feedback system are incorporated: a back pressure water outlet valve driven by a machine-speed oil-pump, and an electrohydraulic butterfly valve governed by direct digital control. The latter model is used to Investigate controller tuning around the dynamometer's operating envelope. It is also subjected to input disturbances and the responses compared to the open loop behaviour.
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Hodgson, P. G. "Theoretical model and dynamic simulation of variable fill hydraulic dynamometers." Thesis, University of Canterbury. Mechanical Engineering, 1991. http://hdl.handle.net/10092/6035.

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The torque characteristics of variable fill hydraulic dynamometers are investigated, particularly the phenomenon of self-emptying of Froude F type machines under open loop control. An integrated one-dimensional model is adapted from fluid coupling and torque converter theory to cover the steady-state case, and extended to the non-linear open loop dynamic cases by incorporating varying fluid fill and the dynamic governing equations for dynamometers. Two feedback systems are included to predict the closed loop behaviour of the machines. The effect of geometric variations on the steady-state torque capacity of dynamometers is given and the cause of the self-emptying phenomenon determined. It is found that the increase in working compartment fluid pressure with shaft speed leads to the fluid outflow rate becoming greater than the supplied inflow rate. Thus the fluid fill decreases. This phenomenon is further investigated using a dynamic model, consisting of a system of first order differential equations. The Adams-Bashforth Predictor Adams-Moulton Corrector numerical method is used to solve the system of equations. In addition to the self-emptying characteristic investigation, the differences between steady state and dynamic model predictions and the system responses to changes of set point and disturbances of its inputs (driving torque, outflow valve position, fluid inflow rate) are studied. To enable closed loop performance prediction, models of two feedback system are incorporated: a back pressure water outlet valve driven by a machine-speed oil-pump, and an electrohydraulic butterfly valve governed by direct digital control. The latter model is used to investigate controller tuning around the dynamometer's operating envelope. It is also subjected to input disturbances and the responses compared to the open loop behaviour.
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Vašíček, Jiří. "Silové zatížení řezných nástrojů při frézování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231465.

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The thesis is focused on measuring the power equipment for milling. The theoretical part describes the method of measuring forces with a deeper focus on the individual meter. There is also the description of the characteristics of the milling process. Experimental part is focused on the proposal of experiment of the face milling, its implementation and subsequent evaluation.
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Meduna, Martin. "Modernizace brzdového stanoviště pro osobní automobily." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228404.

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The basic aim of this thesis is to design optimisation of the brake bench in question. For this kind of optimisation, it was necessary to ascertain which failings the current brake bench exhibited. After ascertaining such failings, design of modification to this brake bench must be performed. In terms of this thesis, it was ascertained that the brake bench has insufficient brake power. Based on this finding, two alternatives for modifications have been selected. The first is replacement of the dynamometer and the second is insertion of a gear box into the brake bench. Rigidity analysis was performed on the gear casing.
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Rampáček, Bernard. "Zařízení pro měření výkonu motocyklů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231392.

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This diploma thesis deals with the problematic of measuring motorcycle performance output using dynamometers primary designed for measuring performance output of four wheel personal vehicles, proposals and comparison of possible designs of device that enable this method of motorcycle performance output measuring by using FEA methods.
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Charouz, Ondřej. "Metody korekce výkonových parametrů vznětového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378135.

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This diploma thesis deals with obtaining the most suitable way of correcting the influence of intake air pressure, temperature and humidity as well as correcting the influence of fuel properties (diesel fuel). These correction factors are adapted to a specific engine for military use. It is a four-stroke, diesel, turbocharged, 6-cylinder engine, PV6-K37, with a displacement of 19100 cm3. This work also deals with the creation of a methodology for the measurement of this motor at the engine station and with the treatise on current methods of power correction. The measurements were made in the premises of Excalibur Army Ltd. in Šternberk.
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LAKE, RYAN DOUGLAS. "INTEGRATION OF A SMALL ENGINE DYNAMOMETER INTO AN EDDY CURRENT CONTROLLED CHASSIS DYNAMOMETER." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1163518957.

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Truksa, Jan. "Návrh upevňovacího rámu pro zkoušení spalovacího motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228351.

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In those diploma thesis I engaged in design of mounting frame for mounting mtorcycle four-stroke inline combustion engine to dynamometric testing site. The goal is necessary mobility and versatility of the design. That mean the construction would be useful for other motorcycle engines.
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Dorsch, Angel M. "Design of a rodent dynamometer." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3317.

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Thesis (M.S.)--West Virginia University, 2004.
Title from document title page. Document formatted into pages; contains x, 122 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 78-83).
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Books on the topic "Dynamometers"

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Axcell, Tami Joan. Reliability of computerized isokinetic dynamometers. Ottawa: National Library of Canada, 1993.

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Keogh, Christopher. The development of a test system for drive components. Dublin: University College Dublin, 1997.

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Civil, T. D. Allen. The Western Dynamometer Car. Uttoxeter: T.D.A. Civil, 1985.

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Ali, Baber. Monitoring vehicle performance using dynamometer technology. Oxford: Oxford Brookes University, 2004.

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Galindo, Eduardo, David Blanco, Chris J. Brace, Edward Chappell, and Richard Burke. Chassis Dynamometer Testing: Addressing the Challenges of New Global Legislation. Warrendale, PA: SAE International, 2017. http://dx.doi.org/10.4271/r-452.

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Williams, T. Dynamometer tests of the efficiency of a van transmission system. Crowthorne, Berks: Transport and Road Research Laboratory, Vehicles and Systems Assessment Dept., Vehicle Engineering Division, 1985.

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Midlatitude synoptic meteorology: Dynamics, analysis, and forecasting. Boston, Mass: American Meteorological Society, 2011.

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Bettes, Harold. Dyno testing and tuning. North Branch, MN: CarTech, 2008.

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Bettes, Harold. Dyno testing and tuning. North Branch, MN: CarTech, 2008.

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P, Wilmington Robert, and United States. National Aeronautics and Space Administration., eds. Astronaut candidate strength measurement using the Cybex II and the LIDO multi-joint II dynamometers. [Washington, DC: National Aeronautics and Space Administration, 1992.

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Book chapters on the topic "Dynamometers"

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Youssef, Helmi, and Hassan El-Hofy. "Machine-Tool Dynamometers." In Traditional Machining Technology, 445–68. Second edition. | Boca Raton, FL : CRC Press, [2020]: CRC Press, 2020. http://dx.doi.org/10.1201/9781003055303-11.

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Barbato, G., A. Bray, A. Germak, and R. Levi. "Calibration and Verification of Multicomponent Dynamometers in the Meganewton Range." In Mechanical Problems in Measuring Force and Mass, 257–66. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4414-5_30.

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Johnson, Ann. "From Dynamometers to Simulations: Transforming Brake Testing Technology into Antilock Braking Systems." In Instrumentation Between Science, State and Industry, 199–218. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-9032-2_10.

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Shi, L. P., B. Y. Sun, and M. Qian. "The Effect of Secondary Piezoelectric Effect on the Measuring Precision of Quartz Dynamometers." In Advances in Abrasive Technology VIII, 519–24. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-974-1.519.

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Podell, Kenneth. "Hand Dynamometer." In Encyclopedia of Clinical Neuropsychology, 1649–51. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-57111-9_190.

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Podell, Kenneth. "Hand Dynamometer." In Encyclopedia of Clinical Neuropsychology, 1208–9. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-0-387-79948-3_190.

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Podell, Kenneth. "Hand Dynamometer." In Encyclopedia of Clinical Neuropsychology, 1–2. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56782-2_190-2.

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Baltzopoulos, Vasilios. "Isokinetic dynamometry." In Biomechanical Evaluation of Movement in Sport and Exercise, 140–67. 2nd edition. | Abingdon, Oxon ; New York, NY : Routledge, 2018.: Routledge, 2017. http://dx.doi.org/10.4324/9780203095546-8.

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Hughes, Miranda. "The Dynamometer and the Diemenese." In Experimental Inquiries, 81–98. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2057-6_3.

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Huang, Y. Q., and Yan Shen Xu. "Dynamic Calibration of Metal Cutting Dynamometer." In Advances in Machining & Manufacturing Technology VIII, 76–80. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-999-7.76.

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Conference papers on the topic "Dynamometers"

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Kopp, Gary E., and Janet L. Holzinger. "Portable NVH Dynamometers." In SAE 2003 Noise & Vibration Conference and Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2003. http://dx.doi.org/10.4271/2003-01-1682.

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Paulina, Carl M., and John F. Schwarz. "Performance Evaluation of Electric Dynamometers." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1994. http://dx.doi.org/10.4271/940485.

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Yogeeswaran, Ramarajan, Shiju Subramaniom, and Senthil Krishnan R. "Establishment of Chassis Dynamometers for Commercial Vehicles." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2019. http://dx.doi.org/10.4271/2019-01-0702.

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Boissinot, Frederic, Jerome Bellavoine, Andrew Shabashevich, and Siegfried Puster. "Automated Calibration for Transmission on Powertrain Dynamometers." In SAE 2015 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2015. http://dx.doi.org/10.4271/2015-01-1625.

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Hamada, Shizunori, Toshimichi Takahashi, Nobutaka Kezuka, Masaju Kouketsu, and Shingo Ishigaki. "Inverter Drive of Dynamometers forAutomotive Evaluation System." In 2018 International Power Electronics Conference (IPEC-Niigata 2018-ECCE Asia). IEEE, 2018. http://dx.doi.org/10.23919/ipec.2018.8507685.

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Hasandka, Adarsh, Anirban Ghosh, Pavan K. Shetty, and Ramesh Kini. "Low-Cost Dynamometers - A Grip Measurement and Logging Solution." In 2013 Texas Instruments India Educators' Conference (TIIEC). IEEE, 2013. http://dx.doi.org/10.1109/tiiec.2013.75.

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Gee, Jonathan, Garrett Torgerson, and William G. Mears. "Eddy Current Dynamometers - Suitable for I/M Transient Simulation." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1998. http://dx.doi.org/10.4271/980406.

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Traver, Michael L., Christopher J. Tennant, Thomas I. Mcdaniel, Steven S. Mcconnell, Brent K. Bailey, and Hector Maldonado. "Interlaboratory Cross-Check of Heavy-Duty Vehicle Chassis Dynamometers." In SAE Powertrain & Fluid Systems Conference & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2002. http://dx.doi.org/10.4271/2002-01-2879.

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Reick, Benedikt, André Kaufmann, and Danilo Engelmann. "Test Procedure Proposal for EV Power Measurement on Dynamometers." In 15th International Conference on Engines & Vehicles. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2021. http://dx.doi.org/10.4271/2021-24-0104.

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Ammouri, A. H., and R. F. Hamade. "Toward an Affordable Automation Scheme of Friction Stir Processing." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53314.

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Friction stir processing (FSP), an offshoot from friction stir welding (FSW), is an intricate operation that involves refining the material by a rotating tool. Active control of the resulting size and distribution uniformity of grain structure is desirable. Achieving such a control across the processed area requires real-time control of the process input variables in order to control the pertinent state variables (e.g., temperature, strain, and strain rate) throughout the process. Many active control schemes typically used in friction stir processes (such as position-, speed-, force-, and torque-control schemes) require the utilization of dynamometers to provide feedback to the control loop. Many drawbacks are associated with such utilization including the complexity of the required instrumentation and control systems. Another complexity is the required rigidity of the machine tool needed to perform friction stir processes. In this work, we advance the notion of eliminating the usage of dynamometers by using the readily available motor current signals from the NC machine tool in the computer numeric control (NC) machines. This approach would drastically reduce the cost of FSP machine retrofitting. Presented in this work are guidelines for the implementation of affordable automation of CNC milling machines to perform friction stir processes. The guidelines are demonstrated by retrofitting a vertical machining center with current transducers to replace the usage of a dynamometer. The current transduces were tapped on the output of the drivers of the spindle and the z-drive motors. A custom LabVIEW software program was developed to control the machining center via direct numeric control mode and to monitor current signals which were in turn, correlated to the generated forces. To demonstrate the methodology, friction stir processing was performed on magnesium alloy sheets for a wide range of process parameters. The tool rotational speed was varied from 600 RPM to 2000 RPM and the traverse feed from 75 mm/min to 900 mm/min. Current signals were monitored during frictions stir processing and were related to the process forces which were measured using a 4-component dynamometer. Linear relations between thrust force and torques with current signals of the spindle and the z-drive motors were established and the signal to noise ratio for each correlation was investigated. It was found that the current spindle signals are highly correlated to the process torque where results can be used in a torque control loop without the need for expensive dynamometers. To a lesser extent was the correlation satisfactory between thrust force and z-drive motor signal due to bad signal to noise ratio.
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Reports on the topic "Dynamometers"

1

Keller, Jonathan, Bill Erdman, Douglas Blodgett, and Christopher Halse. NREL-Prime Next-Generation Drivetrain Dynamometer Test Report. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1313617.

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Cole, G. H., R. A. Richardson, and E. J. Yarger. Dynamometer tests of the Ford Ecostar Electric Vehicle No. 41. Office of Scientific and Technical Information (OSTI), September 1995. http://dx.doi.org/10.2172/125358.

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3

Holz, R., V. Gervorgian, S. Drouilhet, and E. Muljadi. Wind-electric icemaking project: Analysis and dynamometer testing. Volume 1. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/631212.

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4

Holz, R., V. Gervorgian, S. Drouilhet, and E. Muljadi. Wind-electric icemaking project: Analysis and dynamometer testing. Volume 2. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/631213.

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5

Cole, G. H., and E. J. Yarger. Dynamometer tests of the Ford/TDM Ranger electric pickup truck. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/582228.

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6

Sethuraman, Latha, Jonathan Keller, and Robb Wallen. Torsional Vibration in the National Wind Technology Center’s 2.5-Megawatt Dynamometer. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1324530.

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7

Aizawa, Yusuke, Hiroyuki Kondou, Hidekazu Nishimura, and Isamu Inoue. Gear Shift Control for Four-Wheeled Vehicle on a Chassis Dynamometer. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0212.

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8

Cole, G. H., R. A. Richardson, and E. J. Yarger. Additional dynamometer tests of the Ford Ecostar Electric Vehicle No. 41. Office of Scientific and Technical Information (OSTI), June 1996. http://dx.doi.org/10.2172/279700.

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9

Richardson, R. A., E. J. Yarger, and G. H. Cole. Dynamometer testing of the U.S. Electricar Geo Prizm conversion electric vehicle. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/236257.

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10

Vorum, Peter C. Cut Progression during Dynamometer Testing of Foreign Object Damaged Type 7 Extra High Pressure Aircraft Tires. Fort Belvoir, VA: Defense Technical Information Center, September 1991. http://dx.doi.org/10.21236/ada359483.

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