Chebyshev lambda linkage: Difference between revisions

Revision as of 18:05, 3 December 2014

Revision as of 18:26, 16 January 2015

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[[File:Lambda mechanism.svg|upright=0.5|thumb|Lambda Mechanism]]

The '''Chebyshev's Lambda Mechanism'''<ref name="Wolfram">http://demonstrations.wolfram.com/ChebyshevsLambdaMechanism/</ref> is a [[four-bar mechanism]] that converts rotational motion to approximate [[straight-line motion]] with approximate constant velocity.<ref name=DOM>{{cite book |url=http://www.designofmachinery.com/DOM/ |title=Design of Machinery |year=2011}} </ref> It is named after Karl Hoecken (1874−1962). The precise design trades off straightness, lack of acceleration, and what proportion of the driving rotation is spent in the linear portion of the full curve.<ref name=DOM134>{{cite book |url=http://www.designofmachinery.com/DOM/Chap_03_3ed_p134.pdf |title=DOM p134 Hoecken linkage }}</ref>

The example to the right spends over half of the cycle in the near straight portion.