June 26, 2011
June 26, 2011
June 29, 2011
Division Experimentation & Lab-Oriented Studies
22.1029.1 - 22.1029.21
Machine Design Lab: Using Automotive Transmission Examples to ReinforceUnderstanding of Gear Train AnalysisIn teaching mechanical gear train analysis, some students appear to struggle withrelatively simple gear design concepts, and virtually all have difficulty with thecomplexities of planetary gear sets. This paper describes two labs developed for aundergraduate senior level machine design course. One lab uses a three speed manualsynchromesh transmission with parts of the case cut away to demonstrate the operation ofthe gears, shifting mechanism, bearings, and other aspects of the design. Students thencount teeth and analyze the gear ratios using standard gear train analysis methods. Theother lab uses a 1924 Ford Model T planetary transmission to observe how planetarygears can create two forward speeds and reverse from constant rotation of the engine.The students analyze the planetary gear set using relative velocity analysis, and theplanetary gear set is used to gain insight into basic principles of modern automatictransmissions. The two labs give students additional insight into gear train analysis andother related aspects of gear train design.
Beardsley, R. A., & Pringle, C. O. (2011, June), Machine Design Lab: Using Automotive Transmission Examples to Reinforce Understanding of Gear Train Analysis Paper presented at 2011 ASEE Annual Conference & Exposition, Vancouver, BC. https://peer.asee.org/18683
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