TY  - JOUR
AB  - Purpose The purpose of this paper is to present numerical experimentation of three constraint detection methods to explore their main features and drawbacks in infeasibility detection during the design process.Design/methodology/approach Three detection methods (deletion filter, additive method and elasticity method) are used to find the minimum intractable subsystem of constraints in conflict. These methods are tested with four enhanced NLP solvers (sequential quadratic program, multi-start sequential quadratic programing, global optimization solver and genetic algorithm method).Findings The additive filtering method with both the multistart sequential quadratic programming and the genetic algorithm solvers is the most efficient method in terms of computation time and accuracy of detecting infeasibility. Meanwhile, the elasticity method has the worst performance.Research limitations/implications The research has been carried out for only inequality constraints and continuous design variables. This research work could be extended to develop computer-aided graphical user interface with the capability of including equality constraints and discrete variables.Practical implications These proposed methods have great potential for finding and guiding the designer to detect the infeasibility for ill-posed complex design problems.Originality/value The application of the proposed infeasibility detection methods with their four enhanced solvers on several mechanical design problems reduces the number of constraints to be checked from full set to a much smaller subset.
VL  - 16
IS  - 2
SN  - 1726-0531
DO  - 10.1108/JEDT-03-2017-0026
UR  - https://doi.org/10.1108/JEDT-03-2017-0026
AU  - Khorshid Emad
AU  - Alfadli Abdulaziz
AU  - Falah Abdulazim
PY  - 2018
Y1  - 2018/01/01
TI  - Application of constraint infeasibility detection methods in engineering design problems
T2  - Journal of Engineering, Design and Technology
PB  - Emerald Publishing Limited
SP  - 285
EP  - 312
Y2  - 2024/04/25
ER  -