Nikhil Padhye

Learn More
Particle swarm optimization (PSO) has been in practice for more than 10 years now and has gained wide popularity in various optimization tasks. In the context to single objective optimization, this paper studies two aspects of PSO: (i) its ability to approach an 'optimal basin', and (ii) to find the optimum with high precision once it enters the region. of(More)
Over past few years, several successful proposals for handling multi-objective optimization tasks using particle swarm optimization (PSO) have been made, such methods are popularly known as Multi-objective Particle Swarm Optimization (MOPSO). Many of these methods have focused on improving characteristics like convergence, diversity and computational times(More)
In this paper, a multi-objective particle swarm optimization approach (popularly known as MOPSO) for topology optimization of compliant mechanism is proposed. Multi-objective strategy has a great advantage, over other single objective approaches, in finding a well distributed set of non-dominated solutions in a single run which makes post-processing and(More)
Particle swarm optimization (PSO) algorithms are now being practiced for more than a decade and have been extended to solve various types of optimization problems. Despite their widespread use, in this paper, we investigate standard PSO algorithms for their ability to (i) approach the optimal region and (ii) simultaneously focus in order to find the optimum(More)
This paper proposes an integrated approach to arrive at optimal build orientations, simultaneously minimizing surface roughness 'Ra' and build time 'T ', for object manufacturing in SLS process. The optimization task is carried out by two popularly known multi-objective evolutionary optimizers-NSGA-II (non-dominated sorting genetic algorithm) and MOPSO(More)
Interplanetary trajectory optimization studies mostly considered a single objective of minimizing the travel time between two planets or the launch velocity of spacecraft at the departure planet. In this paper, we have considered a simultaneous minimization study of both launch velocity and time of travel between two specified planets with and without the(More)