creativity journey presentation
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Gearbox Creativity journey
GearboxCreativity journey Nhon VoSam RobertsonBrandon LayPandanikum Darren
Creativity journey Refining problem Solution: Tools and resources Initial design Future consideration
Refining problems1To design a gearbox that raises at least 8kg 1 metre as fast as possible, as small as possible and that uses the least electrical power.
How can we lift?
How can we achieve this?By exploring a large array of gearing systems and choosing an appropriate solution that is efficient and effective.
Types of Gears Spur gearsWorm gearsBevel gearsHelical gearsEpicyclic gears
Spur gearsAdvantages:Easily producedReliable and efficientParallel to its axisDisadvantages:SlowTeeth stressCan only transfer power parallel shafts
Worm gearsAdvantages:Compact designMeshing efficientHigh ratios are achievable in single stepDisadvantages:Difficult to manufacturePotential for high power loss
Bevel gearsAdvantages:Different operating anglesScalableDisadvantages:Difficult to machineMust be precisely mounted
Helical gearsAdvantages:DurabilityLoad distributionCan transmit motion to either parallel and right angle shaftDisadvantages:Difficult to machine
Epicyclic gearsAdvantages:Compact designHigh power densityHigh efficiencyDisadvantages:No room for errorAccuracy essential for assure load sharingCan only transfer power parallel shafts
Tools and resources2
SolidworksVisualising designs and drawingsFinite element analysisVisualising motionsAnalysing material,cost and sustainability.
Mathematical modelOptimizing the systemManipulating variablesAnalysing data
ReferencesEBSCOHOST Online researchTutor and lecturer
Reducing maximum axial lengthTriangular design improves compactness61 mm in picture shown61 mm can be further reduced
Prolong gear lifeMore cycles =fatiqueNon integer gear ratios between mating teethPrevious is 42:19On the left is 48:13
Mathematical Modeling Energy analysisFatiqueEfficiencyDerivation of overall tooth ratio
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