Relevant bibliographies by topics / Test stand design

Academic literature on the topic 'Test stand design'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Test stand design"

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Guangyu Liu and T. L. King. "Design of a material ablation test stand." IEEE Transactions on Magnetics 37, no. 1 (2001): 252–56. http://dx.doi.org/10.1109/20.911832.

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Pakosta, Jiří, and Gabriela Achtenová. "Joint Shaft Test Stand." Journal of Middle European Construction and Design of Cars 15, no. 1 (June 27, 2017): 11–14. http://dx.doi.org/10.1515/mecdc-2017-0003.

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Abstract The article focuses on description of design of the test stand for shafts with universal joints and constant velocity joints. The shafts can be loaded by torque at specified speed of rotation, while retaining the possibility of setting a variable angle between input and output. All shafts are instrumented with contactless signal transmission. In addition, ventilator simulates the cooling derived from the driving speed.
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Wojtas, Małgorzata, Łukasz Czajkowski, and Kazimierz Szumański. "Ground Test Stands for Testing Rotors in Insulated Conditions." Transactions on Aerospace Research 2021, no. 1 (March 1, 2021): 15–23. http://dx.doi.org/10.2478/tar-2021-0002.

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Abstract The paper generally discusses Whirl Tower research stands. Whirl Tower stands are used to test, among others, rotorcrafts main rotors in hovering. The work presents an overview of similar solutions of test stand presented in the available literature and online data. Beyond these solutions the paper also contains test stands used so far at the Institute of Aviation, these solutions were prepared for testing one type of rotor (for example: only for gyroplane rotors). The article provides information about new (Whirl Tower) test stand fully designed and manufactured in Łukasiewicz Research Network ‒ Institute of Aviation (Ł-ILOT). One of the basic assumptions is that it will be a universal test stand, giving the possibility to test different types of rotors. Moreover, the article discusses the types of tests and research that can be carried out on this type of test stand, tests that are performed to ensure the safety of the rotor design.
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Kai, Zhou, Wang Xu dong, Zhang Chao, and Liu Jian. "System design of ABS dynamic simulation test stand." International Journal of Vehicle Systems Modelling and Testing 5, no. 2/3 (2010): 197. http://dx.doi.org/10.1504/ijvsmt.2010.037126.

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Bonisławski, Michał, and Marcin Hołub. "Teaching modern power electronics-Computerized test stand design." Computer Applications in Engineering Education 26, no. 4 (April 14, 2018): 928–37. http://dx.doi.org/10.1002/cae.21936.

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Yan Haifeng, Shu Fengxiang, and Cheng Zhihong. "Design on Synthetic Test Stand for Colliery Hydraulic Support." International Journal of Advancements in Computing Technology 3, no. 10 (November 30, 2011): 395–402. http://dx.doi.org/10.4156/ijact.vol3.issue10.49.

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DUDZIK, Sebastian. "Test stand to design control algorithms for mobile robots." PRZEGLĄD ELEKTROTECHNICZNY 1, no. 3 (March 1, 2021): 37–40. http://dx.doi.org/10.15199/48.2021.03.06.

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Fasel, D., S. Alberti, T. Bonicelli, R. Cleasen, T. Goodman, J. P. Hogge, A. Perez, et al. "Design study of a test stand for ITER gyrotron." Fusion Engineering and Design 66-68 (September 2003): 555–60. http://dx.doi.org/10.1016/s0920-3796(03)00123-6.

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Bocian, Mirosław, Jerzy Kaleta, Daniel Lewandowski, and Michał Przybylski. "DESIGN CONCEPT OF TEST STAND FOR DETERMINING PROPERTIES OF MAGNETORHEOLOGICAL ELASTOMERS." Acta Mechanica et Automatica 7, no. 3 (September 1, 2013): 131–34. http://dx.doi.org/10.2478/ama-2013-0022.

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Abstract Magnetorheological elastomers (MRE) are “SMART” materials that change their mechanical properties under influence of magnetic field. Thanks to that ability it is possible to create adaptive vibration dampers based on the MRE. To test vibration damping abilities of this material special test stand is required. This article presents design concept for such test stand with several options of testing.
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Beharie, M. M., J. O. Pedro, and L. Dala. "Design of a quadrotor flight test stand for system identification." Aeronautical Journal 119, no. 1214 (April 2015): 501–21. http://dx.doi.org/10.1017/s0001924000010587.

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AbstractThis paper presents the design, development and construction of a flight test stand for a quadrotor UAV. As opposed to alternate forms of UAV, the power plant in the case of the quadrotor serves a dual purpose of control and propulsion. Since control and propulsion are coupled, the power plant (BLDC motor coupled with propeller) was studied in detail using a black box structure. Extractions of motor parameters in previous studies used traditional BLDC motor equations and propeller theory however the accuracy achievable and confidence in the extracted parameters remained questionable. The developed data acquisition process served to satisfy this need by the construction of a test bench that allows for the extraction of the unknown parameters instilling confidence in the modelling process. The established relationships are then used as inputs into a developed six degree of freedom Euler based mathematical model. A mission profile was constructed with distinct phases of which the mathematical model was used to simulate. Each phase in the mission profile excited different modes of the quadrotor dynamics creating an ideal simulation environment in which changes can be implemented and studied.
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Dissertations / Theses on the topic "Test stand design"

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Albrecht, Daniel D. "Design and construction of heat exchanger test stand with initial test results /." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1967905211&sid=5&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Albrecht, Daniel David. "DESIGN AND CONSTRUCTION OF HEAT EXCHANGER TEST STAND WITH INITIAL TEST RESULTS." OpenSIUC, 2009. https://opensiuc.lib.siu.edu/theses/109.

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Continual development of internal combustion engines requires greater performance from liquid coolants and heat exchangers to maintain optimal temperature. For the purpose of experimental testing of traditional, compact, and microchannel heat exchangers, a test facility has been designed, constructed, and utilized. The facility includes equipment and instrumentation necessary to create operating conditions and record data primarily for testing plate-fin brazed aluminum heat exchanger where heat is being transferred from liquid to air. Other arrangements of heat exchangers could be tested as well with some modifications. Initial tests were performed at several specified operating conditions for three liquids: water, a traditional glycol based Extended Life Coolant (ELC), and a new Glycol Free Coolant (GFC) in an attempt to characterize their heat transfer ability. Results of the tests found that the product of overall heat transfer coefficient and heat exchanger area (UA) was very similar for GFC and water, and it was less for ELC by a narrow margin of 1.3% difference on average. Uncertainty due to instrumentation accuracy was calculated to be 1.8% on average making the results overall UA unverifiable. Measured pressure drop across the heat exchanger which is proportional to required pumping power was found to be 13.5% higher for GFC than ELC at nominal conditions. The GFC offers similar heat transfer performance and marginally increased pumping power requirements compared to the traditional ELC. Due to similar heat transfer performance and the small effect of pressure drop, GFC would be good alternative to ELC due to its less toxic composition.
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Banks, Julia Michelle. "Design of a ²⁵²CF-based neutron shielding test stand." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/19598.

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Sabigoro, Rocky A. "Design and Manufacturing of Pneumatic Test Stand for Rod-less Cylinder vertical application." Thesis, Linköpings universitet, Fluida och mekatroniska system, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105602.

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Within LiU Fluid laboratory there had been a number of hydraulic and pneumatic test stands for research projects and teaching. The effort was needed to do more extension within the field of pneumatics. This thesis was about designing, manufacturing, building and testing the Test Stand for vertical application of pneumatic rodless cylinder. It consisted of three main parts; mechanical structure, pneumatic system and electrical and electronics. The design part focused more on the mechanical structure and pneumatic system. Electrical and electronics had to be installed to facilitate actuation and control of the system after mechanical and pneumatic components were assembled together. The mechanical structure consisted of three main parts; cabinet, carriage and ball balancer. For each part three concepts were generated, evaluated and selected to obtain the most promising concept for further development. The design values were given such that the mechanical structure should have total weight not exceeding 500 kg. The pneumatic system would supply maximum pressure of 8 bar. Upstream pressure was considered to be 6 bar after 25% pressure drop assumed to occur in the system. The mass to be lifted was typically 26 kg moving at a maximum speed of 2 m/s. The whole design process was carried out with safety and design for assembly in mind. The methodologies applied in the design included; identification of need, concept generation, concept selection, CAD modeling and simulation and FE Analysis. Development of concepts involved CAD drawings (3D and 2D) in CATIA V5, calculations and selection of appropriate materials for each component. The pneumatic cylinder applied in this design was a rod-less cylinder (Bosch Rexroth; RTC-DA, MNR: R480628571) with a Piston diameter of 50 mm, stroke of 1.2 m and cushioning stroke of 20 mm. More design information on RTC-DA was not available therefore the information in appendix A was based on series RTC-BV which had close similarities with series RTC-DA. The carriage that moves up and down along the cylinder stroke was designed with a mechanism that imparted disturbance to the system. The mechanism could be set to impart either 100.7 N or 151.02 N disturbance. The design was done with the assumptions that:  Spring force Fs and extension x were constant  The system had sonic flow characteristics and critical flow appeared in meter out orifice.  The air was perfect gas which obeyed equation of state  Specific heat was constant  Viscosity was constant  Flow was one dimensional  System pressure drop was 25% of the maximum supply pressure. Dynamics of the system were estimated analytically and by means of simulation. Corresponding parameter values such as pressure, velocity, flow rate, cushioning stiffness, cushioning force and acceleration were obtained and compared. The product in general conformed to the specifications made prior to the design process.
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KRUTZ, JILL E. "DESIGN OF A HYDRAULIC ACTUATOR TEST STAND FOR NON-LINEAR ANALYSIS OF HYDRAULIC ACTUATOR SYSTEM." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990813095.

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Krutz, Jill E. "Design of a hydraulic actuator test stand for non-linear analysis of hydraulic actuator systems." Cincinnati, Ohio : University of Cincinnati, 2001. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin990813095.

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Klenk, Daniel E. "Design of a re-configurable test stand for a multi degree of freedom compliant robot prototype." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54469.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.
Cataloged from PDF version of thesis.
A test stand was designed and constructed to compress a compliant robot prototype, while measuring the force applied and the displacement of the prototype's end. The prototype is a five degree of freedom, compliant device, which required the design process to preserve these DOF while measuring the force and displacement. To reduce the restriction on the robot's DOF, the final design utilizes a stepper motor and a counterweighted pulley system to apply a compressive force through a single monofilament line. The test stand can accommodate prototypes up to 25 cm in length, and can apply a compressive force up to 6.5N with a resolution of ±0.04N. The displacement can be measured accurately to ±0.064cm.
by Daniel E. Klenk.
S.B.
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Kurichiyanil, Neeraj [Verfasser], Joachim [Akademischer Betreuer] Enders, and Markus [Akademischer Betreuer] Roth. "Design and construction of a test stand for photocathode research and experiments / Neeraj Kurichiyanil ; Joachim Enders, Markus Roth." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2017. http://d-nb.info/1124155163/34.

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Boyadzhieva, Svetozara. "Design and simulations of test stand for collaboration with Hilti Diamond Coring System DD 150-U : In cooperation with HILTI and Technical University in Vienna." Thesis, KTH, Industriell produktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164858.

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The aim of this master thesis is to design a test stand for a Hilti Diamond Coring System DD 150-U. The purpose of this stand is to be stable enough to carry out a variety of drilling processes and to allow Institute of Production Engineering and Laser Technology in Technical University in Vienna to conduct different tests and evaluations of the process. The first step is to create a detailed 3D model in SolidWorks 2013. It should eliminate the physical influence of a workers and allow to investigate the drilling process in detail. This means that the drilling operation itself should be conducted without the intervention of human force. In other words the goal is to provide constant force of drilling and easier positioning of the tool according to the location of the hole to be drilled. The design should be suitable for drilling in concrete blocks with size 20x20x20 mm and should assure stable and repeatable operating conditions. As soon as the test stand is created the assembly will be tested with respect to its stifness and stability. This will be done by creating FEM simulations of several critical parts and the whole test stand. The finite elements method (FEM) is a numerical analyses tool that is used for the calculation of the displacements, stresses and strains of those components under internal or external loads such as the force of drilling. These types of simulations are offering the possibility to lower development costs and to save time by eliminating the need of rework and prototypes. In order to provide a constant drilling force weights will be attached to the drilling machine.
Syftet med detta examensarbete är att designa en provbänk för Hilti Diamond Coring System DD 150-U. Provbänken ska vara tillräckligt stabil och flexibel för att man ska kunna utföra olika borroperationer samtidigt som Institute of Production Engineering och Laser Technology på Technical University i Wien ska kunna genomföra olika tester och utvärderingar av processen. Första steget är att skapa en detaljerad 3D-modell i Solidworks 2013. Modellen bör ta hänsyn till arbetstagarens rent fysiska påverkan samt eliminera effekten av denna samtidigt som modellen ska tillåta detaljerad utvärdering av borrproceduren. Detta innebär att borrningen i sig bör kunna genomföras utan mänsklig manuell påverkan. Med andra ord är målet att generera konstant kraft vid borrning och underlätta positioneringen av verktyget i förhållande till platsen där hålet ska borras. Designen utformas så att den lämpar sig för borrning i betongblock med storleken 20x20x20 mm och den bör vara sådan att stabilitet och repeterbarhet säkerställs under normala driftsförhållanden. Så snart provbänken är framtagen kommer den att testas vid montering för att utvärdera provbänkens egenskaper med avseende på styvhet och stabilitet. Detta kommer att ske genom att skapa FEM simuleringar av hela provbänken samt av flera kritiska delar. Finita element metoden (FEM) är ett numeriskt analysverktyg som används för beräkning av förskjutningar, spänningar och töjningar på komponenter vilka uppstår då intern eller extern belastning sker såsom vid borrning. Dessa typer av simuleringar erbjuder möjligheten att sänka utvecklingskostnaderna och spara tid genom att behovet av omarbetningar och prototyper elimineras. För att erhålla en konstant borrkraft kommer vikter att fästas i borrmaskinen.
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Kostka, Marek. "Zkušební stav pro testování únavy koloběžek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318520.

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This Master’s thesis deals with measuring of acting forces from rider to footbike during the ride, followed by the construction of test stand to draw an equivalent load. Measurements and subsequent analysis of acting forces from the rider to the footbike were made. These results were then used for complete design of the test stand. The frame of the test stand was subdued to a stress analysis. A complete automatic control system, including a pneumatic control circuit, was also designed. The proposed automatic test stand was then manufactured and put into operation.
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Books on the topic "Test stand design"

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Urda, Theodore J. Design of a vertical thrust test stand for a remotely piloted model helicopter. 1986.

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Helmke, Claas. Design and verification of test procedures for the accelerated performance characterisation and evaluation of PV stand-alone systems. 2003.

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John, Wander, and United States. National Aeronautics and Space Administration., eds. Design and application of electromechanical actuators for deep space missions. Tuscaloosa, Ala: The University of Alabama, College of Engineering, Bureau of Engineering Research, 1995.

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John, Wander, and United States. National Aeronautics and Space Administration., eds. Design and application of electromechanical actuators for deep space missions: Second annual progress report, reporting period, 8/16/93-8/15/94. Tuscaloosa, AL: College of Engineering, University of Alabama, [Bureau of Engineering Research, 1994.

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Jones, Michelle. Timeless Decorating Styles: Furniture Designs and Decorating Trends That Stand the Test of Time. Independently Published, 2022.

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MALIEK, Powell. Timeless Decorating Styles: Furniture Designs and Decorating Trends That Stand the Test of Time. Independently Published, 2022.

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Center, Langley Research, ed. Comparison of system identification techniques for the Hydraulic Manipulator Test Bed (HMTB). Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1996.

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Center, Langley Research, ed. Experimental validation of an integrated controls-structures design methodology for a class of flexible space structures. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1994.

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Martin, Melissa, and Patton H. McGinley. Shielding Techniques. Medical Physics Publishing, 2020. http://dx.doi.org/10.54947/9781951134006.

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Shielding Techniqueshas been a classic for many years. Now Melissa Martin joins Patton McGinley for the book's third edition, which brings NCRP 151 methodology into the shielding calculations, making this a stand-alone guide for clinical medical physicists. The book is also finding a home in classrooms due to its many shielding calculation exercises. From Anees Dhabaan in Medical Physics…"Together with the detailed text for the shielding topics, these examples craft this book to be a suitable textbook on shielding for students and clinical medical physicists. When teaching shielding to medical physics residents and graduate students, I have incorporated this book in our institution as the main textbook. From this experience, I would strongly recommend this text to general medical physicists, medical physics residents, and graduate students. This comprehensive textbook is, in my opinion, the only one in the field of medical physics to provide thoroughly detailed shielding design solutions for photon therapy rooms as of yet."
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Aplin, Tanya, and Jennifer Davis. Intellectual Property Law. 4th ed. Oxford University Press, 2021. http://dx.doi.org/10.1093/he/9780198842873.001.0001.

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All books in this flagship series contain carefully selected substantial extracts from key cases, legislation, and academic debate, providing able students with a stand-alone resource. Intellectual Property Law: Text, Cases, and Materials provides a complete resource for undergraduate and postgraduate students of intellectual property (IP) law. The only text of its kind in the field, it combines extracts from major cases and secondary materials with critical commentary from experienced teachers in the field. The book deals with all areas of IP law in the UK: copyright, trade marks and passing off, personality and publicity rights, character merchandising, confidential information and privacy, industrial designs and patents. It also tackles topical areas, such as the application of IP law to new technologies, such as artificial intelligence, and the impact of the internet on trade marks, copyright, and privacy. While the focus of the book is on IP law in a domestic context, it provides international, EU, and comparative law perspectives on major issues, and also addresses the wider policy implications of legislative and judicial developments in the area. The book is an ideal resource for all students of IP law who need cases, materials, and commentary in a single volume.
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Book chapters on the topic "Test stand design"

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Böhm, Michał, Mateusz Kowalski, and Adam Niesłony. "Multiaxial Fatigue Test Stand Concept – Stand and Control Design." In Advances in Intelligent Systems and Computing, 437–45. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-10990-9_41.

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Remigiusz, Knitter, Blazejewski Andrzej, Krolikowski Tomasz, Zmuda Trzebiatowski Piotr, and Zuchniewicz Jerzy. "Test Stand for Metamaterials Dynamic Properties Examination." In Sustainable Design and Manufacturing 2020, 53–60. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8131-1_5.

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Laski, Pawel Andrzej, Dawid Sebastian Pietrala, Jarosław Zwierzchowski, and Henryk Łomża. "Design of a Test Stand for Rolling Bearing Durability Testing." In Proceedings of the International Symposium for Production Research 2018, 275–79. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92267-6_24.

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Shao, Changyong, Yong You, Guanghui Wang, Zhiqin Wang, Yan Li, Lijing Zhao, Xin Tang, Liangdong Liu, and Decheng Wang. "Modeling Design and Application of Low-Temperature Plasma Treatment Test Stand for Seeds before Sowing." In Computer and Computing Technologies in Agriculture VII, 393–400. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54344-9_45.

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Gerken, J. F., D. Biermann, D. Canini, and P. Eberhard. "Modeling of the Fluid Flow and Design of an Experimental Test Stand for Ejector Deep Hole Drilling Processes." In Lecture Notes in Production Engineering, 186–94. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78424-9_21.

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Kleinfeller, Nikolai, Christopher M. Gehb, Maximilian Schaeffner, Christian Adams, and Tobias Melz. "Assessment of Model Uncertainty in the Prediction of the Vibroacoustic Behavior of a Rectangular Plate by Means of Bayesian Inference." In Lecture Notes in Mechanical Engineering, 264–77. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_21.

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AbstractDesigning the vibroacoustic properties of thin-walled structures is of particularly high practical relevance in the design of vehicle structures. The vibroacoustic properties of thin-walled structures, e.g., vehicle bodies, are usually designed using finite element models. Additional development effort, e.g., experimental tests, arises if the quality of the model predictions are limited due to inherent model uncertainty. Model uncertainty of finite element models usually occurs in the modeling process due to simplifications of the geometry or boundary conditions. The latter highly affect the vibroacoustic properties of a thin-walled structure. The stiffness of the boundary condition is often assumed to be infinite or zero in the finite element model, which can lead to a discrepancy between the measured and the calculated vibroacoustic behavior. This paper compares two different boundary condition assumptions for the finite element (FE) model of a simply supported rectangular plate in their capability to predict the vibroacoustic behavior. The two different boundary conditions are of increasing complexity in assuming the stiffness. In a first step, a probabilistic model parameter calibration via Bayesian inference for the boundary conditions related parameters for the two FE models is performed. For this purpose, a test stand for simply supported rectangular plates is set up and the experimental data is obtained by measuring the vibrations of the test specimen by means of scanning laser Doppler vibrometry. In a second step, the model uncertainty of the two finite element models is identified. For this purpose, the prediction error of the vibroacoustic behavior is calculated. The prediction error describes the discrepancy between the experimental and the numerical data. Based on the distribution of the prediction error, which is determined from the results of the probabilistic model calibration, the model uncertainty is assessed and the model, which most adequately predicts the vibroacoustic behavior, is identified.
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Luboń, Wojciech, Grzegorz Pełka, Jarosław Kotyza, and Daniel Malik. "Design and Development of a Didactic and Research Stand for Exploitation Tests Under Defined Conditions." In Springer Proceedings in Energy, 511–18. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72371-6_50.

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Yi, Jiangang, and Siwei Ju. "The design of a multiple hydraulic components test stand system based on mixed field bus technology." In Machinery, Materials Science and Engineering Applications, 359–64. CRC Press, 2017. http://dx.doi.org/10.1201/9781315375120-59.

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Barthélemy, Laurent. "Optimizing Berthing of Crew Transfer Vessels against Floating Wind Turbines: A Comparative Study of Various Floater Geometries." In Wind Turbines - Advances and Challenges in Design, Manufacture and Operation [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102012.

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Securing the return on investment for commercial floating wind farms by a proper estimate of the operation and maintenance (O and M) downtime is a key issue to triggering final investment decisions. That is why crew transfer vessel (CTV) weather stand-by issues should be assessed together with new floating wind floater concepts, to boost their cost attractivity. However, such issues as the numerical investigation of the landing manoeuvre of a service ship against a floater reveal complex to calculate. Based on similarities with seakeeping, we investigate various floater geometries. To estimate the weather limitations associated with each configuration. Most recent works find that calculation compares with 5% accuracy to an experiment from a test tank at a model scale. Method description: (A) Vessel seakeeping: (1) assess vessel responses (amplitude and phase angles) and (2) compare them with vessel responses of available publications, as a benchmark. (B) Vessel berthing: (1) model both vessel and floater, (2) account for the wave masking effect of existing floater designs, and (3) compare the ratio of wave vertical force over wave horizontal force and the grip coefficient at the interface between the vessel fender and the floater boat landing. Findings: The wave masking effect calculation for a square floater is cross-checked favorably with an existing demonstrator.
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Zalinger, Jason. "The Story of Ethnochat." In Online Research Methods in Urban and Planning Studies, 86–98. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0074-4.ch006.

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Instant Messaging (IM) programs are powerful and unique tools for conducting semi-structured or unstructured online interviews. However, many unanswered questions exist surrounding the use of IM interviewing. This design chapter takes a storytelling approach to answer two specific research questions: (1) Do rich data collected via IM stand the test of time? (2) How can an IM program be built designed specifically for researchers? The chapter is organized into three parts. Part one reviews recent, related research. Part two takes a somewhat unusual approach to answer the research question regarding the long-term power of IM data by re-visiting the author’s experience from 2007 using IM to interview female participants about their feelings using online dating sites. Part three is a detailed description of a prototype IM program, Ethnochat. There are many IM clients in existence, but nothing has been made specifically for professional researchers for semi-structured or unstructured interviews. Having the best tool available will help urban planners conduct their research more efficiently and at a significantly reduced cost.
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Conference papers on the topic "Test stand design"

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Mondragon, Jose M., and James E. Hubbard. "Design, Build, and Test of a Thrust Test Stand." In 55th AIAA Aerospace Sciences Meeting. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-0104.

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GUSS, W., R. MYER, R. POST, and R. TORTI. "High throughput electric thruster test stand design." In 19th International Electric Propulsion Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-1026.

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Barros, José Eduardo Mautone, Ramón Molina Valle, Cláudio Pinto De Barros, and Renato Deslandes De Figueiredo. "Design of an Aeronautical Engine Test Stand." In International Mobility Technology Conference and Exhibit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-3256.

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Gallina, Alberto, Dawid Knapik, Krzysztof Kolek, Maciej Rosol, Andrzej Tutaj, and Pawel Zagorski. "Design of an ADCS test stand for nanosatellites." In 2022 26th International Conference on Methods and Models in Automation and Robotics (MMAR). IEEE, 2022. http://dx.doi.org/10.1109/mmar55195.2022.9874310.

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Hrbacek, Jan, Vladislav Singule, and Pavel Houska. "Design of PMSM-based electric motor test stand." In 2014 16th International Conference on Mechatronics - Mechatronika (ME). IEEE, 2014. http://dx.doi.org/10.1109/mechatronika.2014.7018327.

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Koopmans, Michael T., and Irem Y. Tumer. "Electromechanical Actuator Test Stand Coupling Design to Support Actuator Prognostic Model Development." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47869.

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Uncertainty assessment and management is becoming an increasingly essential aspect of good prognostic design for engineering complex systems. Uncertainty surrounding diagnostics, loads, and fault progression models is very real and propagating this uncertainty from component-level health estimates to the system-level remains difficult at best. In this work, a test stand is used to conduct real-time failure experiments aboard various aircraft platforms to collect failure response data, expanding the actuator knowledge base that forms the foundation of component health estimations. The research takes a step towards standardizing a test stand design to produce comparable and scalable failure data sets, fostering uncertainty reduction within the electromechanical actuator prognostic model. This paper specifically presents a method to optimize the actuator coupling for a commercially available actuator where a model was built to minimize the coupling deflection and estimate the coupling life. Using this model, researchers can rapidly develop their own electromechanical actuator test stands.
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Thomas, James C., Jacob M. Stahl, Gordon R. Morrow, and Eric L. Petersen. "Design of a Lab-Scale Hybrid Rocket Test Stand." In 52nd AIAA/SAE/ASEE Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-4965.

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Hrbacek, Jan, Vladislav Singule, and Pavel Houska. "Mechatronic design of four-quadrant electric drive test stand." In 2015 International Conference on Electrical Drives and Power Electronics (EDPE). IEEE, 2015. http://dx.doi.org/10.1109/edpe.2015.7325319.

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Taylor, Chase, Paul Humrickhouse, Thomas Fuerst, Robert Pawelko, and Masashi Shimada. "Conceptual design for a blanket tritium extraction test stand." In Technology of Fusion Engineering (TOFE), November 16-19, 2020, Fusion Safety Program, Idaho National Laboratory, Idaho Falls, ID 83402. US DOE, 2020. http://dx.doi.org/10.2172/1903777.

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Gul, Kamran A., and Douglas E. Adams. "Modeling and Torsional Vibration Analysis of Engine Cold-Test Stand Drivelines." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35647.

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Many large-scale engine manufacturers use cold-testing techniques to test engine assemblies for measuring transmission noise and diagnosing cylinder faults, valve-train and oil pump defects, which cannot be detected easily using traditional hot testing. Cold-testing is done by rotating the unfired engines by an external electrical drive and a driveline and analyzing the measured torque signal characteristics at various engine speeds. In this work, two different cold-test stands, which experience large torsional oscillations excited by various engine harmonics, are modeled. The excessive vibratory response of these stands not only makes the engine fault detection process difficult by degrading the measured torque signal, but can also cause structural failure. An appropriate driveline design is required to decrease the torsional vibration and noise levels and preserve the integrity of diagnostic signals. In an effort to prevent undesirable noise and vibration problems, models of engine cold-test stands are developed that involve modeling of driveline components, engine excitation model for cold-testing, and estimation of torsional vibratory response. The developed models are validated by comparing the model predictions with experimental responses. Model parameters that can help suppress the torsional resonances are determined using embedded sensitivity functions. It is shown that using a smaller-sized motor and a softer rubber coupling, the driveline torsional resonant frequencies excited during the speed sweep can be shifted out of the test range and the amplitudes can be decreased. The developed model is, therefore, used to help redesign the cold-test stand drivelines.
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Reports on the topic "Test stand design"

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Wilson, Thomas E., Avraham A. Levy, and Tzvi Tzfira. Controlling Early Stages of DNA Repair for Gene-targeting Enhancement in Plants. United States Department of Agriculture, March 2012. http://dx.doi.org/10.32747/2012.7697124.bard.

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Gene targeting (GT) is a much needed technology as a tool for plant research and for the precise engineering of crop species. Recent advances in this field have shown that the presence of a DNA double-strand break (DSB) in a genomic locus is critical for the integration of an exogenous DNA molecule introduced into this locus. This integration can occur via either non-homologous end joining (NHEJ) into the break or homologous recombination (HR) between the broken genomic DNA and the introduced vector. A bottleneck for DNA integration via HR is the machinery responsible for homology search and strand invasion. Important proteins in this pathway are Rad51, Rad52 and Rad54. We proposed to combine our respective expertise: on the US side, in the design of zincfinger nucleases (ZFNs) for the induction of DNA DSBs at any desired genomic locus and in the integration of DNA molecules via NHEJ; and on the Israeli side in the HR events, downstream of the DSB, that lead to homology search and strand invasion. We sought to test three major pathways of targeted DNA integration: (i) integration by NHEJ into DSBs induced at desired sites by specially designed ZFNs; (ii) integration into DSBs induced at desired sites combined with the use of Rad51, Rad52 and Rad54 proteins to maximize the chances for efficient and precise HR-mediated vector insertion; (iii) stimulation of HR by Rad51, Rad52 and Rad54 in the absence of DSB induction. We also proposed to study the formation of dsT-DNA molecules during the transformation of plant cells. dsT-DNA molecules are an important substrate for HR and NHEJ-mediatedGT, yet the mode of their formation from single stranded T-DNA molecules is still obscure. In addition we sought to develop a system for assembly of multi-transgene binary vectors by using ZFNs. The latter may facilitate the production of binary vectors that may be ready for genome editing in transgenic plants. ZFNs were proposed for the induction of DSBs in genomic targets, namely, the FtsH2 gene whose loss of function can easily be identified in somatic tissues as white sectors, and the Cruciferin locus whose targeting by a GFP or RFP reporter vectors can give rise to fluorescent seeds. ZFNs were also proposed for the induction of DSBs in artificial targets and for assembly of multi-gene vectors. We finally sought to address two important cell types in terms of relevance to plant transformation, namely GT of germinal (egg) cells by floral dipping, and GT in somatic cells by root and leave transformation. To be successful, we made use of novel optimized expression cassettes that enable coexpression of all of the genes of interest (ZFNs and Rad genes) in the right tissues (egg or root cells) at the right time, namely when the GT vector is delivered into the cells. Methods were proposed for investigating the complementation of T-strands to dsDNA molecules in living plant cells. During the course of this research, we (i) designed, assembled and tested, in vitro, a pair of new ZFNs capable of targeting the Cruciferin gene, (ii) produced transgenic plants which expresses for ZFN monomers for targeting of the FtsH2 gene. Expression of these enzymes is controlled by constitutive or heat shock induced promoters, (iii) produced a large population of transgenic Arabidopsis lines in which mutated mGUS gene was incorporated into different genomic locations, (iv) designed a system for egg-cell-specific expression of ZFNs and RAD genes and initiate GT experiments, (v) demonstrated that we can achieve NHEJ-mediated gene replacement in plant cells (vi) developed a system for ZFN and homing endonuclease-mediated assembly of multigene plant transformation vectors and (vii) explored the mechanism of dsTDNA formation in plant cells. This work has substantially advanced our understanding of the mechanisms of DNA integration into plants and furthered the development of important new tools for GT in plants.
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Mayfield, Colin. Capacity Development in the Water Sector: the case of Massive Open On-line Courses. United Nations University Institute for Water, Environment and Health, January 2017. http://dx.doi.org/10.53328/mwud6984.

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The Sustainable Development Goal 6 targets are all dependent on capacity development as outlined in SDG 6a “Expand international cooperation and capacity-building support to developing countries in water- and sanitation related activities and programmes “. Massive Open On-line Courses (MOOCs) and distance learning in general have a significant role to play in this expansion. This report examines the role that MOOCs and similar courses could play in capacity development in the water sector. The appearance of MOOCs in 2010/11 led within 4 years to a huge increase in this type of course and in student enrollment. Some problems with student dropout rates, over-estimating the transformational and disruptive nature of MOOCs and uncertain business models remain, but less “massive” MOOCs with more engaged students are overcoming these problems. There are many existing distance learning courses and programmes in the water sector designed to train and/ or educate professionals, operators, graduate and undergraduate students and, to a lesser extent, members of communities dealing with water issues. There are few existing true MOOCs in the water sector. MOOCs could supply significant numbers of qualified practitioners for the water sector. A suite of programmes on water-related topics would allow anyone to try the courses and determine whether they were appropriate and useful. If they were, the students could officially enroll in the course or programme to gain a meaningful qualification or simply to upgrade their qualifications. To make MOOCs more relevant to education and training in the water sector an analysis of the requirements in the sector and the potential demand for such courses is required. Cooperation between institutions preparing MOOCs would be desirable given the substantial time and funding required to produce excellent quality courses. One attractive model for cooperation would be to produce modules on all aspects of water and sanitation dealing with technical, scientific, social, legal and management topics. These should be produced by recognized experts in each field and should be “stand-alone” or complete in themselves. If all modules were made freely available, users or mentors could assemble different MOOCs by linking relevant modules. Then extracts, simplified or less technical versions of the modules could then be used to produce presentations to encourage public participation and for other training purposes. Adaptive learning, where course materials are more tailored to individual students based on their test results and reactions to the material, can be an integral part of MOOCs. MOOCs efficiently provide access to quality courses at low or no cost to students around the world, they enable students to try courses at their convenience, they can be tailored to both professional and technical aspects, and they are very suitable to provide adaptive learning courses. Cooperation between institutions would provide many course modules for the water sector that collectively could provide excellent programmes to address the challenges of capacity development for SDG 6 and other issues within the water sector.
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Stakes, Keith, and Joseph Willi. Study of the Fire Service Training Environment: Safety, Fidelity, and Exposure -- Acquired Structures. UL Firefighter Safety Research Institute, March 2019. http://dx.doi.org/10.54206/102376/ceci9490.

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Previous FSRI led research projects have focused on examining the fire environment with regards to current building construction methods, synthetic fuel loading, and best-practices in firefighting strategies and tactics. More than 50 experiments have been previously conducted utilizing furniture to produce vent-limited fire conditions, replicating the residential fire environment, and studying the methods of horizontal ventilation, vertical ventilation, and positive pressure attack. Tactical considerations generated from the research are intended to provide fire departments with information to evaluate their standard operating procedures and make improvements, if necessary, to increase the safety and effectiveness of firefighting crews. Unfortunately, there still exists a long standing disconnect between live-fire training and the fireground as evident by continued line of duty injury and death investigations that point directly to a lack of realistic yet safe training, which highlights a continued misunderstanding of fire dynamics within structures. The main objective of the Study of the Fire Service Training Environment: Safety, Fidelity, and Exposure is to evaluate training methods and fuel packages in several different structures commonly used across the fire service to provide and highlight considerations to increase both safety and fidelity. This report is focused on the evaluation of live-fire training in acquired structures. A full scale structure was constructed using a similar floor plan as in the research projects for horizontal ventilation, vertical ventilation, and positive pressure attack to provide a comparison between the modern fire environment and the training ground. The structure was instrumented which allowed for the quantification of fire behavior, the impact of various ventilation tactics, and provided the ability to directly compare these experiments with the previous research. Twelve full scale fire experiments were conducted within the test structure using two common training fuel packages: 1) pallets, and 2) pallets and oriented strand board (OSB). To compare the training fuels to modern furnishings, the experiments conducted were designed to replicate both fire and ventilation location as well as event timing to the previous research. Horizontal ventilation, vertical ventilation, and positive pressure attack methods were tested, examining the proximity of the vent location to the fire (near vs. far). Each ventilation configuration in this series was tested twice with one of the two training fuel loads. The quantification of the differences between modern furnishings and wood-based training fuel loads and the impact of different ventilation tactics is documented through a detailed comparison to the tactical fireground considerations from the previous research studies. The experiments were compared to identify how the type of fuel used in acquired structures impacts the safety and fidelity of live-fire training. The comparisons in this report characterized initial fire growth, the propensity for the fire to become ventilation limited, the fires response to ventilation, and peak thermal exposure to students and instructors. Comparisons examined components of both functional and physical fidelity. Video footage was used to assess the visual cues, a component of the fire environment that is often difficult to replicate in training due to fuel load restrictions. The thermal environment within the structure was compared between fuel packages with regards to the potential tenability for both students and instructors.
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Hodul, M., H. P. White, and A. Knudby. A report on water quality monitoring in Quesnel Lake, British Columbia, subsequent to the Mount Polley tailings dam spill, using optical satellite imagery. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330556.

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In the early morning on the 4th of August 2014, a tailings dam near Quesnel, BC burst, spilling approximately 25 million m3 of runoff containing heavy metal elements into nearby Quesnel Lake (Byrne et al. 2018). The runoff slurry, which included lead, arsenic, selenium, and vanadium spilled through Hazeltine Creek, scouring its banks and picking up till and forest cover on the way, and ultimately ended up in Quesnel Lake, whose water level rose by 1.5 m as a result. While the introduction of heavy metals into Quesnel Lake was of environmental concern, the additional till and forest cover scoured from the banks of Hazeltine Creek added to the lake has also been of concern to salmon spawning grounds. Immediate repercussions of the spill involved the damage of sensitive environments along the banks and on the lake bed, the closing of the seasonal salmon fishery in the lake, and a change in the microbial composition of the lake bed (Hatam et al. 2019). In addition, there appears to be a seasonal resuspension of the tailings sediment due to thermal cycling of the water and surface winds (Hamilton et al. 2020). While the water quality of Quesnel Lake continues to be monitored for the tailings sediments, primarily by members at the Quesnel River Research Centre, the sample-and-test methods of water quality testing used, while highly accurate, are expensive to undertake, and not spatially exhaustive. The use of remote sensing techniques, though not as accurate as lab testing, allows for the relatively fast creation of expansive water quality maps using sensors mounted on boats, planes, and satellites (Ritchie et al. 2003). The most common method for the remote sensing of surface water quality is through the use of a physics-based semianalytical model which simulates light passing through a water column with a given set of Inherent Optical Properties (IOPs), developed by Lee et al. (1998) and commonly referred to as a Radiative Transfer Model (RTM). The RTM forward-models a wide range of water-leaving spectral signatures based on IOPs determined by a mix of water constituents, including natural materials and pollutants. Remote sensing imagery is then used to invert the model by finding the modelled water spectrum which most closely resembles that seen in the imagery (Brando et al 2009). This project set out to develop an RTM water quality model to monitor the water quality in Quesnel Lake, allowing for the entire surface of the lake to be mapped at once, in an effort to easily determine the timing and extent of resuspension events, as well as potentially investigate greening events reported by locals. The project intended to use a combination of multispectral imagery (Landsat-8 and Sentinel-2), as well as hyperspectral imagery (DESIS), combined with field calibration/validation of the resulting models. The project began in the Autumn before the COVID pandemic, with plans to undertake a comprehensive fieldwork campaign to gather model calibration data in the summer of 2020. Since a province-wide travel shutdown and social distancing procedures made it difficult to carry out water quality surveying in a small boat, an insufficient amount of fieldwork was conducted to suit the needs of the project. Thus, the project has been put on hold, and the primary researcher has moved to a different project. This document stands as a report on all of the work conducted up to April 2021, intended largely as an instructional document for researchers who may wish to continue the work once fieldwork may freely and safely resume. This research was undertaken at the University of Ottawa, with supporting funding provided by the Earth Observations for Cumulative Effects (EO4CE) Program Work Package 10b: Site Monitoring and Remediation, Canada Centre for Remote Sensing, through the Natural Resources Canada Research Affiliate Program (RAP).
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