Optimum Design of Four Mechanical Elements Using Cohort Intelligence Algorithm

In this study, Cohort Intelligence (CI) algorithm is implemented for solving four mechanical engineering problems such as design of closed coil helical spring, belt pulley drive, hollow shaft, and helical spring. As these problems are constrained in nature, a penalty function approach is incorporated. The performance of the constrained CI is compared with other contemporary algorithms such as Genetic Algorithm (GA), Particle Swarm Optimization, Artificial Bee Colony (ABC), Teaching–Learning-Based Optimization (TLBO), and TLBO with Differential Operator (DTLBO). The performance of the constrained CI was better than other algorithms in terms of objective function. The computational cost was quite reasonable, and the algorithm exhibited robustness solving these problems.

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