NDLI: Heat treatment control by polytope methods

Content Provider	IEEE Xplore Digital Library
Author	Doumanidis, C.C.
Copyright Year	1995
Description	Author affiliation: Dept. of Mech. Eng., Tufts Univ., Medford, MA, USA (Doumanidis, C.C.)
Abstract	This article addresses the problem of thermal quality regulation in a variety of manufacturing processes involving heat treating of a part of 2D geometry by a localized, sequentially moving heat source, and formulates it as a distributed-parameter, feedback control problem of the developed temperature distribution. A numerical simulation of thermal processing is developed and validated experimentally on a plasma-arc system, with infrared temperature measurement on the part surface. The design of a thermal regulator is then based on minimization of the deviation of the measured temperature field from a desired thermal distribution. A robust and efficient constrained optimization algorithm based on the concept of polytopes is employed to define the torch trajectory and heat input distribution. This distributed-parameter control strategy is tested in closed-loop operation both computationally and in the laboratory, during heat treatment of steel plates.
Starting Page	1275
Ending Page	1279
File Size	690562
Page Count	5
File Format	PDF
ISBN	0780324455
DOI	10.1109/ACC.1995.520955
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-06-21
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heat treatment Temperature control Temperature measurement Temperature distribution Plasma measurements Plasma temperature Manufacturing processes Geometry Feedback control Numerical simulation
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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