2026-09-19T22:00:47Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/67021 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Fox, Daniel Bryan 2014-12-13T19:55:35Z 2014-12-13T19:55:35Z 10000-01-01 1980 1980 A composite optimization algorithm applicable to mixed integer, constrained, nonlinear problems is developed in this research. One major component of the composite algorithm is a modified version of the nonlinear simplex method. Significant modifications are made to this algorithm including the incorporation of a unidimensional search procedure and the use of a new method to treat constraints. Additional features of the composite algorithm include new acceleration strategies, a new decomposition approach, and a discrete grid algorithm. The components of the composite algorithm are tested on problems primarily selected to represent engineering design optimization applications. The performance of the new methods is compared to some existing techniques. Examples of the application of combinations of the composite components are included. The results indicate that the new algorithms obtain superior solutions and in most cases are more efficient than existing techniques. The success of the algorithm on problems of engineering design optimization indicates a wide area of potential application. Made available in DSpace on 2014-12-13T19:55:35Z (GMT). No. of bitstreams: 1 8017937.pdf: 5607434 bytes, checksum: 188826fecaefde34afe42353a4a5018c (MD5) Previous issue date: 1980 Embargo set by: Seth Robbins for item 67199 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 232 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1980. http://hdl.handle.net/2142/67021 (UMI)AAI8017937 eng Engineering, Mechanical A Composite Algorithm for Mixed Integer Constrained Nonlinear Optimization text Mechanical Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.