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Razvoj in nadgradnja preizkuševališča za polimerne zobnike
Kalister, Rok (Author), Vukašinović, Nikola (Mentor) More about this mentor... This link opens in a new window, Vrabič, Rok (Co-mentor)

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Abstract
Preizkuševališče za polimerne zobnike, ki se nahaja v laboratoriju LECAD, omogoča izvedbo različnih testov v sklopu smernic za konstruiranje polimernih zobnikov VDI 2736:2014. Te, med drugim, obsegajo porušitveni test in testiranje termičnih lastnosti zobnikov v odvisnosti od obremenitve. Na preizkuševališču, kakršno je sedaj, pa je moč karakteristike spremljati zgolj pri konstantni temperaturi okolice, prav tako pa je navor mogoče nastaviti in odčitati le ročno, brez dodatne kontrole v primeru izgub zaradi segrevanja ozobja. Ta način tudi ne omogoča nastavitve želenih vrtljajev gredi na minuto. Cilj te naloge je vgradnja dodatnih komponent, s pomočjo katerih bi lahko krmilili temperaturo, navor in obrate preizkuševališča ter napisati krmilni program, ki bi dosledno sledil spremembam in zagotavljal stabilne želene parametre. Delo zajema izbiro in umerjanje ustreznih senzorjev, aktuatorjev in ostalih elementov za vgradnjo tako na 3D modelu kot tudi na samem objektu ter določitev ustrezne krmilne sheme celotnega sistema. Prikazan je razvoj krmilnega programa v ustreznem programskem jeziku v povezavi s trenutnim PLK-jem in testiranje stabilnosti delovanja celotnega sistema. Tako bo ta sistem lahko omogočal zajem podatkov pri kontroliranih pogojih s pomočjo katerih lahko testiramo zobnike v širšem spektru obratovalnih pogojev.

Language:Slovenian
Keywords:polimerni zobniki, razvoj in nadgradnja, senzorji, programirljivi logični krmilnik, krmiljenje temperature, navora in obratov, PID krmilnik
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2020
Publisher:[R. Kalister]
Number of pages:XXII, 81 str., [1] f. zganj. pril.
UDC:621.833:678:681.5(043.2)
COBISS.SI-ID:25822467 Link is opened in a new window
Views:166
Downloads:118
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Secondary language

Language:English
Title:Development and upgrade of a polymer gear testing rig
Abstract:
The polymer gear testing rig which is located in LECAD laboratory offers the means to perform multiple different tests by guidelines for designing polymer gear according to VDI 2736:2014. For example, destructive tests or thermal properties of the gear depending on the load. The testing rig as it exists today, offers only the possibility to monitor these characteristics at fixed ambient temperature, as well as manual monitoring and setting of desired torque, without any control to compensate losses due to gear tooth heating up. This way it is also not possible to adjust the shaft revolution of the rig at all. The goal of this thesis is hence installation of additional components that would be used for controlling the temperature, torque and rotation speed and to write a control program that would consistently track changes and provide a stable set of desired parameters. The scope of this work thus covers the selection and later calibration of appropriate sensors, actuators and other elements required for installation on both the 3D model and the object itself and determining the appropriate control scheme for the entire system. This is followed by the development of a control program in the suitable programming language in conjunction with the current PLC and stability testing of the entire system. Thus, the system will enable the capture of data under controlled conditions, through which it is now possible to test gears in a wider range of operating conditions.

Keywords:polymer gears, development and upgrade, sensors, programmable logic controller, temperature, torque and rotation speed control, PID controller

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