Evaluation of an adaptive control algorithm for use in uniform droplet spray in droplet based manufacturing

This thesis presents the results of a simulation study comparing the current integral control system with an adaptive control system for potential use in a Uniform Droplet Spray Process. First, an adaptive control algorithm was derived. Then, this algorithm and the existing integral control algorithm were coded for use in MATLAB simulations. The simulations were performed against each other over various sampling periods and noise classes to compare the performance of both droplet diameter mean and standard deviation. Results showed that for the target diameter of 760 [mu]m, the adaptive controller could produce droplets with the mean diameter of 759.9 [mu]m and a standard deviation of 0.0066 [mu]m, while the integral controller produced droplets having the mean diameter and standard deviation of 759.7 [mu]m and 0.0084 [mu]m, respectively. Over the sampling periods experimented with, the adaptive controller could produce droplets with the mean diameter of 759.9 [mu]m and a standard deviation of 0.0061 [mu]m, while the integral controller produced droplets having the mean diameter and standard deviation of 759.9 [mu]m and 0.0074 [mu]m, respectively.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Mechanical Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2000

Author dc:creator

• Towell, Samuel Thurston, 1977-

Advisor dc:contributor.advisor

• Jung-Hoon Chun.

• Mechanical Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/26884

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/26884