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Application of the California Institute of Technology Electric Analog Computer to Nonlinear Mechanics and Servomechanisms

McCann, G. D. and Wilts, C. H. and Locanthi, B. N. (1949) Application of the California Institute of Technology Electric Analog Computer to Nonlinear Mechanics and Servomechanisms. Transactions of the American Institute of Electrical Engineers, 68 (1). pp. 652-660. ISSN 0096-3860. https://resolver.caltech.edu/CaltechAUTHORS:20170823-175001964

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Abstract

This paper describes the non-linear elements and circuit techniques used with the California Institute of Technology electric analog computer. Their application to nonlinear mechanical vibratory systems and nonlinear servomotors is discussed in detail. These techniques have been found to be generally suitable for representing single valued nonlinear functions of a dependent variable. Nonlinear springs, spring loaded backlash, and nonlinear damping factors can be readily simulated as well as saturation effects and other single valued non-linearities in servomotors. Methods of analysis are illustrated for several typical problems including a nonlinear rotating mechanical system and an autopilot employing a solenoid-operated rate and position limited hydraulic motor. Numerous servos of this type have now been studied and correlation of computer solutions with actual servo test data have shown in every case that the mathematical equations presented here accurately describe this type of motor.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/0.1109/T-AIEE.1949.5059991DOIArticle
http://ieeexplore.ieee.org/document/5059991/PublisherArticle
Additional Information:© 1949 AIEE. Paper 19-165, recommended by the AIEE Computing Devices Committee and the AIEE Joint Subcommittee on Servomechanisms and approved by the AIEE Technical Program Committee for presentation at the AIEE Summer General Meeting, Swampscott, Mass., June 20-24, 1949. Manuscript submitted November 22, 1948; made available for printing May 5, 1949.
Issue or Number:1
Record Number:CaltechAUTHORS:20170823-175001964
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170823-175001964
Official Citation:G. D. McCann, C. H. Wilts and B. N. Locanthi, "Application of the California Institute of Technology Electic Analog Computer to Nonlinear Mechanics and Servomechanisms," in Transactions of the American Institute of Electrical Engineers, vol. 68, no. 1, pp. 652-660, July 1949. doi: 10.1109/T-AIEE.1949.5059991
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80758
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:24 Aug 2017 01:05
Last Modified:03 Oct 2019 18:34

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