Essays about: "Växellåda"

Showing result 11 - 15 of 32 essays containing the word Växellåda.

  1. 11. Sensors for intelligent and reliable components

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Pontus Lundman; [2020]
    Keywords : Wind turbine; Gearbox; Sensor; Condition monitoring; Cyber-physical system; Vindkraftverk; Växellåda; Sensor; Tillståndsövervakning; Cyberfysiskt system;

    Abstract : One way to tackle the climate change society is facing today is through the change to renewable energy sources, such as wind power. Today, a trend when it comes to technology is that products are evolving into becoming more cyber-physical systems (CPS) by integrating functions realized with mechanics, control and communication. READ MORE

  3. 12. Calibration and Estimation of Dog Teeth Positions in Synchronizers for Minimizing Noise and Wear during Gear Shifting

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Qianyin Kong; [2020]
    Keywords : Synchronizer engagement; gear shifting; dog teeth; particle swarm optimization; Synkroniserare; Växling; Dog-teeth; Partikelsvärmoptimering;

    Abstract : Electric motors are used more widely in automotive to reducing emissions in vehicles. Due to the decreased usage of internal combustion engines which used to be the main noise source, impacts from synchronizers cannot be ignored during gear shifting, not only causing noise and wear but also delaying gear shifting completion. READ MORE

  4. 13. Planetary Gear Analysis : deformation induced misalignment and optimization

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Martin Jonsson; [2020]
    Keywords : FEM; gears; KISSsoft; misalignment; planetary gears; FEM; KISSsoft; kugghjul; planetväxlar; vinkelfel;

    Abstract : A handheld heavy-duty nut runner, commonly used to assemble windmills and oil pipe lines, and capable of producing 4100 Nm of torque, experiences low cycle fatigue and usually fails after 20 000 cycles at the specified torque. A full assembly Finite element model of the last stage of the four-stage planetary gearbox is constructed and simulated over one complete load cycle. READ MORE

  5. 14. Analysis of Accuracy for Engine and Gearbox Sensors

    University essay from Uppsala universitet/Institutionen för teknikvetenskaper

    Author : Erkan Dogantimur; Daniel Johnsson; [2019]
    Keywords : statistical; analysis; engine; gearbox; sensor; sensors; rotation; rotational; speed; differential; pressure; performance; characteristics; trueness; precision; accuracy; Hall; inductive; induction; gauge pressure; reference; hysteresis; bias; noise; linearity; non-linearity; DEWESoft; DAQ; wheel; tooth; teeth; absolute; rotary; encoder; matlab; XOR; Gray; binary; LabView; sampling; measurement; measuring; statistisk; analys; motor; växellåda; sensor; sensorer; rotation; rotationell; hastighet; fart; differentiell; tryck; prestanda; karaktäristik; trueness; precision; accuracy; noggrannhet; onoggrannhet; Hall; induktiv; induktion; tryckskillnad; referens; hysteres; bias; avstånd; brus; linjäritet; linearitet; olinear; olinjär; olinearitet; olinjäritet; DEWESoft; DAQ; sampling; mätning; hjul; tand; tänder; absolut; rotationsgivare; givare; matlab; XOR; Gray; binär; LabView;

    Abstract : This thesis provides a standardized method to measure accuracy for engine and gearbox sensors. Accuracy is defined by ISO 5725, which states that trueness and precision need to be known to provide a metric for accuracy. However, obtaining and processing the data required for this is not straight forward. READ MORE

  6. 15. Bearing Diagnosis Using Fault Signal Enhancing Teqniques and Data-driven Classification

    University essay from Linköpings universitet/Fordonssystem

    Author : Benjamin Lembke; [2019]
    Keywords : Bearing diagnosis; rolling element bearings; predictive maintenance; signal processing; fault detection; gearbox diagnosis; support vector machine; svm; binary classification; one class classification; machine learning; feldetektion; diagnos; feldiagnos; växellåda; signalbehandling; maskininlärning;

    Abstract : Rolling element bearings are a vital part in many rotating machinery, including vehicles. A defective bearing can be a symptom of other problems in the machinery and is due to a high failure rate. Early detection of bearing defects can therefore help to prevent malfunction which ultimately could lead to a total collapse. READ MORE