The Multiport Lever: A Mechanical Logical Element

[+] Author and Article Information
F. Freudenstein

Mechanical Engineering, Columbia University, New York, N. Y.

E. Söylemez

Mechanical Engineering, Middle East Technical University, Gaziantep, Turkey

J. Eng. Ind 99(2), 353-358 (May 01, 1977) (6 pages) doi:10.1115/1.3439227 History: Received May 27, 1976; Online July 15, 2010


In its basic form the multiport lever consists of a link that can pivot about one of a number of axes or ports, depending upon a force balance. The two-port lever occurs quite frequently in machinery and mechanical devices. As far as we know, however, multiport levers have not been recognized as a basic logical element. Neither do they appear to have been used for more than two ports. In this investigation we define and generalize the concept of a multiport-lever configuration, develop its analytical mechanics (Theorems 1–4) and consider the design of the lever as a switching element. The logical behavior of the multiport lever does not correspond to that of any known switching element, although similarities to threshold gates can be observed.

Copyright © 1977 by ASME
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