Dissertations / Theses on the topic 'Air Brakes'
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Coimbatore, Subramanian Shankar Ram. "A diagnostic system for air brakes in commercial vehicles." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5857.
Full textRamaratham, Srivatsan. "A mathematical model for air brake systems in the presence of leaks." Texas A&M University, 2008. http://hdl.handle.net/1969.1/86043.
Full textBowlin, Christopher Leland. "A pressure control scheme for air brakes in commercial vehicles." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4934.
Full textRipley, Ian, and ian ripley@qr com au. "An Investigation of Brake Application Delays in Australian Train Brake Systems." Central Queensland University. Engineering, 2005. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20060720.100110.
Full textStonawski, Ondrej. "NON-DESTRUCTIVE EVALUATION OF CARBON/CARBON BRAKES USING AIR-COUPLED ULTRASONIC INSPECTION SYSTEMS." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1674101471&sid=2&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Full text"Department of Mechanical Engineering and Energy Processes." Keywords: Air-coupled ultrasonic, Carbon/carbon brakes, Nondestructive evaluation. Includes bibliographical references (p. 114-115). Also available online.
Schick, Bastian. "A Digital Test Bench for Pneumatic Brakes." Thesis, KTH, Spårfordon, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290043.
Full textDet här examensarbetet omfattar formgivningen och implementeringen aven digital provbänk för tyckluftsbromssystemet på godståg. Provbänken skaanvändas för att vidareutveckla befintliga bromsmodeller hos Transrail SwedenAB. De används för beräkningen av optimerade hastighetsprofiler förtåg i förarassistanssystemet CATO. Arbetet baserar sig på undersökningenav den tekniska bakgrunden, samt ett metodiskt angreppssätt för fysikaliskmodellering. Verktyget är implementerat på ett modulärt sätt. Provbänkenger full flexibilitet för simuleringen av skräddarsydda tågkonfigurationer somanvänder det europeiska UIC-bromssystemet. Tåglängd och fordonsanordningkan anpassas enligt användarens behov, till exempel för simulering av fördeladtraktion. Systemparametrarna lagras i ett fordonsbiliotek som förenklar inmatningenav tågkonfigurationer. Fordonsbiblioteket kan utvidgas enligt behov.Simuleringen är baserad på en ekvivalent strömkretsmodell, som kompletterasmed modellerad dysströmning. Simuleringen beskriver trycket ihuvudledningen, bromscylindern och förrådsluftsbehållaren. Bromskrafternaapproximeras linjärt efter trycken för de enskilda vagnarna såväl som helatåget. Simuleringen återger beteendet av bromssystemet i alla driftsituationerpå ett verklighetsnära sätt, enligt validering med mätdata från Knorr-Bremse:stestanläggning. Ytterligare kalibrering behövs för att minimera avvikelserna isimuleringen och för att utvidga modellens giltighetsdomän. Provbänken harutvecklats i stegvis modellering och är väl förberedd för vidareutveckling ochanpassning. Ett exempel är anpassningen för att simulera det amerikanskaAAR-bromssystemet.Arbetet som presenteras här är lämplig för användning i liknande applikationer,såsom körsimulatorer. Metoden kan tillämpas allmänt på övrigaanvändningsområden av modulär simulering.
Lang, Allan M. "An investigation into heavy vehicle drum brake squeal." Thesis, Loughborough University, 1994. https://dspace.lboro.ac.uk/2134/7447.
Full textOues, Adnan Khalil. "PROTECTION OPTIMIZATION OF CARBON-CARBON COMPOSITES AGAINST AIR OXIDATION BY COATING WITH ANTI-OXIDANTS." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/dissertations/1376.
Full textMulchandani, Hiten. "An engine air-brake integration study." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/62880.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 109-112).
The feasibility of operating an engine air-brake (EAB) integrated with a pylon duct bifurcation in a realistic aircraft engine environment has been analyzed. The EAB uses variable exit guide vanes downstream of a high bypass ratio (BPR) fan rotor to produce drag quietly by swirling flow out of the fan nozzle. The swirling motion yields low pressure in the vortex core from simple radial equilibrium, thereby generating pressure drag. The 4-BB internal plug and 5-BB external plug nozzles of BPR 8 are chosen to provide a realistic environment for model-scale tests at the NASA Aero-Acoustic Propulsion Lab (AAPL). The objectives of this study are to quantify the impact of a pylon on the drag and noise of an EAB, and explore means to mitigate the potential loss of swirling flow and associated drag. Analysis is conducted at approach conditions on the 4-BB nozzle, with fan and core nozzle pressure and temperature ratios obtained from an engine cycle analysis. A pylon is designed to represent engine installations typically encountered in short-range jet aircraft. The pylon is a prismatic NACA 0012 airfoil geometry with swept leading, trailing edges and an extended internal fairing to facilitate compatibility with both nozzles in the AAPL facility. The EAB cases analyzed include three types of pylon/vane configurations: (1) the baseline pylon with un-deflected swirl vanes is used in the calculation of the equivalent drag coefficient (CD); (2) the pylon with the trailing edge (TE) flap deflected full-span by 35 degrees is used to set structural load limits for detailed design of the baseline pylon; and (3) configurations with the pylon TE flap deflected partial-span by 20 degrees and asymmetric swirl vanes are used to generate swirling outflow from the fan nozzle exhaust. The partial-span deflection cases are further categorized by the location of the asymmetric vanes: at the nozzle exhaust (aft) and further upstream. Computational results demonstrate the aft vanes generate CD in the range 0.35-0.61 and the upstream vane cases produce CD between 0.09-0.18. The difference in drag is because the flow avoids the majority of the duct bifurcation in the aft vanes cases to produce stronger swirling outflow. A CD value between 0.7-1.0 is required to achieve a 3-4 degree glidescope change and therefore an overall noise benefit of 2.5 dB for a conventional tube-and-wing aircraft on approach. The aft vane configurations show promise in reaching this target while the upstream vane installation concepts require further investigation.
by Hiten Mulchandani.
S.M.
Senkal, Doruk. "Haptic surgical aid system with magnetorheological brakes for dental implants." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Fall2009/d_senkal_111509.pdf.
Full textTitle from PDF title page (viewed on Jan. 4, 2010). "School of Engineering and Computer Science." Includes bibliographical references (p. 77-81).
Coimbatore, Subramanian Shankar. "Modeling the pneumatic subsystem of a S-cam air brake system." [College Station, Tex. : Texas A&M University, 2004. http://hdl.handle.net/1969.1/328.
Full text"Major Subject: Mechanical Engineering" Title from author supplied metadata (record created on Jul. 18, 2005.) Vita. Abstract. Includes bibliographical references.
Vilayannur, Natarajan Shankar. "Modeling the pneumatic relay valve of an s-cam air brake." Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/2363.
Full textJung, Ulrich Sebastian [Verfasser]. "Alternative Air Brake Concepts for Transport Aircraft Steep Approach / Ulrich Sebastian Jung." München : Verlag Dr. Hut, 2012. http://d-nb.info/1022535536/34.
Full textHigley, Joel. "The Brains of the Air Force: Laurence Kuter and the Making of the United States Air Force." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469180142.
Full textLee, Cho-Yu. "Computational and experimental study of air hybrid engine concepts." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/9205.
Full textJung, Ulrich Sebastian [Verfasser], Christian [Akademischer Betreuer] Breitsamter, and Mirko [Akademischer Betreuer] Hornung. "Alternative Air Brake Concepts for Transport Aircraft Steep Approach / Ulrich Sebastian Jung. Gutachter: Mirko Hornung. Betreuer: Christian Breitsamter." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1021499072/34.
Full textMelnik, Y., and T. Linnik. "Chemtrails impact on the environment and human brains." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/30866.
Full textKatz, Elliott. "Effect of Air-abrasion Preparation on Shear Bond Strength of Orthodontic Brackets to Enamel Surface." Thesis, NSUWorks, 2018. https://nsuworks.nova.edu/hpd_cdm_stuetd/75.
Full textKaranja, Bethuel, and Parsa Broukhiyan. "Commercial Vehicle Air Consumption: Simulation, Validation and Recommendation." Thesis, KTH, Maskinkonstruktion (Inst.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209657.
Full textI denna rapport beskrivs ett examensarbete som genomfördes på bromsavdelningen på Scania CV AB. Projektet innefattar utveckling av en numerisk modell (i Matlab) som beräknar och förutspår luftförbrukningen i en lastbil under olika körcykler. I rapporten beskrivs det tester och experiment som gjordes för att ta fram nödvändiga uppgifter för utvecklingen av modellen. Sedan presenteras modellen som skapades och alla valideringstester som genomfördes. Modellen är gjord så att användaren kan kombinera olika komponentkombinationer för lastbilar med olika lastningskonfigurationer och körcykler. Slutligen används modellen för att utvärdera luftförbrukningen i lastbilar under särskilt ansträngande körcykler. Den utvecklade modellen visade sig vara pålitlig och korrekt med en felmarginal på 7% med avseende på mängden luft som konsumeras. Med dess hjälp kunde flera rekommendationer ges om hur luftförbrukningen i kommersiella fordon kan förbättras. De bästa komponentkombinationerna hittades också och presenteras i denna rapport
Karlqvist, Rasmus. "Hydropneumatic suspension in a truck : Installation of a hydropneumatic suspension for a Scania truck." Thesis, Karlstads universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-78647.
Full textJíša, Martin. "Konstrukce brzdičky příze s mechanickým přidržováním stroje Air-Jet." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241705.
Full textLinn, Jane Ostergar. "A Coverage Metric to Aid in Testing Multi-Agent Systems." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6666.
Full textCury, Sérgio Elias Neves. "Exposição dos bráquetes ao meio bucal durante o tratamento ortodôntico e seu impacto no atrito." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/25/25144/tde-31082018-175858/.
Full textThe aim of this study was to evaluate the changes in bracket slots after clinical use and their impact on friction force. It is composed by a systematic review of the literature and a prospective study comparing the friction levels before and after the clinical use, as well as comparing two different materials for prophylactic blasting. The systematic review evaluated 7 articles that satisfied the inclusion criteria, based on electronic searches conducted in several databases, without limitations regarding publication year or language. The methodological quality and risk of bias were assessed according to a modified version of the Donws and Black checklist. 6 of the 7 articles presented significant increase in the friction force on retrieved brackets, after clinical use. The second study of the present study is a prospective in-vivo study which 16 patients were submitted to orthodontic treatment, divided in 3 groups according to the protocol of prophylactic control performed in brackets (Group 1 - patients submitted prophylaxis with sodium bicarbonate blasting, Group 2 - patients submitted to prophylaxis with glycine-based blasting, Group 3 - patients were not submitted to professional prophylaxis) Brackets were later removed from the oral cavity and subjected to friction force tests, in addition to qualitative analysis of surface roughness by scanning electron microscopy. The control group (CG) for comparison consisted of as received brackets (brand new brackets). The ANOVA test followed by the Tukey test were used to evaluate the differences between the 4 groups (GC, G1, G2 and G3). The retrieved groups presented an increase on friction force, but only the group that did not perform prophylactic blasting every appointment (G3) presented a statistically significant difference in comparison to the Control Group. There was no statistically significant difference also when comparing the two different materials used for prophylactic blasting.
Šproch, Daniel. "Návrh výroby držáku klimatizace." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230516.
Full textTurabi, Ali, and Алі Абутураб Торабі. "Preliminary design of a long-range passenger aircraft with a 364 passenger capacity." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/53185.
Full textThis diploma work is dedicated to preliminary design of the long-range aircraft with 364 passenger capacity. The process of development is analysis of the prototypes and selections of the most progressive involve decisions. The diploma work has drawings of project of the long-range airplane with 364 passenger capacity, calculations and drawings of the aircraft layout.
Ця дипломна робота присвячена ескізному проекту дальньомагістрального літака на 364 пасажири. Процес розробки - це аналіз прототипів і відбір найбільш прогресивних рішень. Дипломна робота містить креслення проекту дальньомагістрального літака на 364 пасажири, розрахунки та креслення компоновки літака.
Storm, Jessica L. "How External Factors Influence Higher Education Philanthropy." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1572006791377665.
Full textVice, President Research Office of the. "Livable Communities." Office of the Vice President Research, The University of British Columbia, 2009. http://hdl.handle.net/2429/9515.
Full textDhar, Sandeep. "Development of Diagnostic Algorithms for Air Brakes in Trucks." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8438.
Full text(9830255), Ian Ripley. "An investigation of brake application delays in Australian train brake systems." Thesis, 2004. https://figshare.com/articles/thesis/An_investigation_of_brake_application_delays_in_Australian_train_brake_systems/13422623.
Full textLin, Hsiu-Ching, and 林秀青. "Development and Evaluation of the Air Bag Monitoring System used in the Braces for Idiopathic Scoliosis." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/93346364241154843062.
Full text國立成功大學
醫學工程研究所
91
The conventional spinal orthoses have been confirmed to be effective in altering the natural history of adolescent idiopathic scoliosis (AIS) and their effectiveness varies from 72% to 89% of the cases being treated. In view of the biomechanics, to improve the correcting ability, the correction force provided by the orthosis should be maintained within the effective range considering its dynamic use condition during the long period of wearing. The conventional orthotic pad only can provide static and constant corrective force. The aim of this study was to investigate the treatment effect prospectively by applying a quasi-dynamic correction force on the scoliosis with the adjustable air bag. To quantify the correction pressure applied by the air bag and the interface pressure between the orthosis and body, a pressure monitoring system to detect the correction fore supplied by the air bag was developed and the feasibility was also evaluated. To develop this air bag pressure monitoring system, four sensors (BP-2KRS pressure sensor, FSR, PS-02 and PS-01) including force and pressure sensors, were evaluated and corresponding data loggers were established to examine the possibility of setting up a portable system. The developed pressure monitoring system was further evaluated on one normal subject and two AIS patients to assess its ability in detecting the pressure (force) changes during different postures of daily activities. The evaluation results indicated that the resolution of FSR and PS-02 sensors were too low to sense the pressure. The PS-01 force sensor was determined for the air bag pressure monitoring system, because the BP-2KRS sensor is too heavy and expensive. The follow-up results indicated that high correlation existed between the interface pressure of air bag measured by the BP-2KRS pressure sensor and the interface force of air bag measured by the PS-01 for all subjects (correlation coefficient = 0.985~0.734, p<0.05). Therefore, the design of a portable air bag monitoring system has the capability to measure the interface pressure change between the orthosis and body for clinical use. As for the postural effect, trunk flexion had larger influence on the correction force than trunk extension. The reasons might be the range of motion and a gap developed between the orthosis and the trunk. In the mean while, when the subject performed trunk side bending toward the ipsilateral side of the air bag did not increase the correction force by over-pressed on it. The research findings indicated that postures indeed affected the corrective force of the orthosis; hence, a pressure monitoring system to quantify the alteration of correction force in real-time is necessary. The objectives of this study were to develop an air bag pressure monitoring system installed within the spine orthosis system and to evaluate its feasibility. In the future, further refinement of this system is required for clinical use. The investigation of using air bag pressure monitoring system integrated with electrical stimulation for spinal curve correction is suggested for future work.
Hsueh, Tsung-Chih, and 薜宗智. "Computer Aid Analysis and Design of The Drum Brake Plate Motorcycle." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/24516719909563406736.
Full text國立中山大學
機械工程研究所
85
The main goal of this study is to study the effect of combining the computer-aided design and finite element method for alalysis and design on the drum brake of a motorcycle. Be utilizing the computeraided design package IDEAS which is signified with convenient drawing and construction of a complex model that is near the truth, the researcher transformed the model's information into the finite element method package MARC, and did the analysis of dynamic and contact problem. In accordance with the result of analysis, the researcher changed some parameters and did further analyse. After discussing the results of parameters, the researcher used those information to improve the mechanism of drum brkae.
Chien, Ming-Chun, and 簡名君. "The Research on Evaluation of Deterioration of Subsidiary on Building Exterior Wall –As a Case Study on Separate Type Air – Condition Bracket." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/7vnj43.
Full text國立臺北科技大學
建築與都市設計研究所
97
Having a healthy living environment is one of the important issues in the 21th century. In addition, the healthy diagnosis of the building is head for the process of legalization in the future. However, as time goes by, the life cycle of the buildings would be cut down to incapable depend on their materiels and structures. The critical problem is the damages caused by the falling could make people fear and cause doubts of the public safety. As a result, this research is written from the viewpoints of risk management. Also, risk control is to influence the distribution of the probability by means of the exterior wall accessories diagnosis and supervise the possibility of accidently rate. Therefore, the goal of this reasearch is to establish categories and deterioration evaluation, set up the SOP (Standard of Process) of the evaluation of air conditioner, increase the overall performance, build up the analysis of decision tree analysis, and bring up the solving strategies. The scope of the reasearch is limited to the mainly assembling rack of the air conditioner on building facade. Besides, the analysis of the case study and the interviews with air conditioner assemblers are combined to set up the standard of rank-estimating of the exterior wall accessories, in order to become module of evaluation of deterioration through academic analysis, field survey, and interviews. Base on the results of the research, the contribution of this report is to support building evaluators effectively and accurately in diagnosing the exterior wall accessories and evaluating the standard of deterioration rank. As the reference of safety maintainance and healthy diagnosis, three types of SOP are provided to evaluate the exterior wall accessories- the rack of air conditioner. 1.Type A diagnosis- Basic dianosis→Advanced diagnosis→Comprehensive diagnosis→Increase the overall performance 2.Type B diagnosis- Advanced diagnosis→Comprehensive diagnosis→Increase the overall performance 3.Type C diagnosis- Comprehensive diagnosis→Increase the overall performance