TY - GEN
T1 - Nested and simultaneous solution strategies for general combined plant and controller design problems
AU - Herber, Daniel R.
AU - Allison, James T.
N1 - Publisher Copyright:
© Copyright 2017 ASME.
PY - 2017
Y1 - 2017
N2 - In this article, general combined plant and controller design or co-design problems are examined. Previous work in co-design theory imposed restrictions on the type of problems that could be posed. This article lifts many of those restrictions. The problem formulations and optimality conditions for both the simultaneous and nested solution strategies are given. Due to a number of challenges associated with the optimality conditions, practical solution considerations are discussed with a focus the motivating reasons for using direct transcription in co-design. This article highlights some of the key concepts in general co-design including general coupling, the dierences between the feasible regions for each strategy, general boundary conditions, inequality path constraints, system-level objectives, and the complexity of the closed-form solutions. Three co-design test problems are provided. A number of research directions are proposed to further co-design theory including tailored solution methods for reducing total computational expense, better comparisons between the two solution strategies, and more realistic test problems.
AB - In this article, general combined plant and controller design or co-design problems are examined. Previous work in co-design theory imposed restrictions on the type of problems that could be posed. This article lifts many of those restrictions. The problem formulations and optimality conditions for both the simultaneous and nested solution strategies are given. Due to a number of challenges associated with the optimality conditions, practical solution considerations are discussed with a focus the motivating reasons for using direct transcription in co-design. This article highlights some of the key concepts in general co-design including general coupling, the dierences between the feasible regions for each strategy, general boundary conditions, inequality path constraints, system-level objectives, and the complexity of the closed-form solutions. Three co-design test problems are provided. A number of research directions are proposed to further co-design theory including tailored solution methods for reducing total computational expense, better comparisons between the two solution strategies, and more realistic test problems.
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U2 - 10.1115/DETC2017-67668
DO - 10.1115/DETC2017-67668
M3 - Conference contribution
AN - SCOPUS:85034788531
T3 - Proceedings of the ASME Design Engineering Technical Conference
BT - 43rd Design Automation Conference
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2017
Y2 - 6 August 2017 through 9 August 2017
ER -