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Machine Design Lab: Using Automotive Transmission Examples to Reinforce Understanding of Gear Train Analysis

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Conference

2011 ASEE Annual Conference & Exposition

Location

Vancouver, BC

Publication Date

June 26, 2011

Start Date

June 26, 2011

End Date

June 29, 2011

ISSN

2153-5965

Conference Session

Pedagogical Innovations in Laboratory Education

Tagged Division

Division Experimentation & Lab-Oriented Studies

Page Count

21

Page Numbers

22.1029.1 - 22.1029.21

Permanent URL

https://peer.asee.org/18683

Download Count

328

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Paper Authors

biography

Roger A. Beardsley Central Washington University

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Roger Beardsley is an Assistant Professor in the Mechanical Engineering Technology program at Central Washington
University in Ellensburg, WA. He teaches courses in energy related topics (thermodynamics, fluids & heat transfer), along with the second course in the undergraduate sequence in mechanical design. Some of his technical interests include renewable energy, appropriate technology and related design issues.

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biography

Charles O. Pringle Central Washington University

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Charles Pringle is an Assistant Professor in the Mechanical Engineering Technology program at Central Washington University in Ellensburg, WA. He teaches courses in statics, mechanics of materials, and systems simulation, along with the first course in the undergraduate sequence in mechanical design at CWU. Some of his technical interests include systems, renewable energy, and the related design issues.

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Abstract

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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