Purpose
– The purpose of this paper is to develop an optimal approach for optimizing the dynamic behavior of incremental linear actuators.
Design/methodology/approach
– First, a parameterized design model is built. Second, a dynamic model is implemented. This model takes into account the thrust force computed from a finite element model. Finally, the multiobjective optimization approach is applied to the dynamic model to optimize control as well as design parameters.
Findings
– The Pareto front resulting from the optimization approach (or the parallel optimization approach,) is better than the Pareto, which is obtained from the only application of MultiObjective Genetic Algorithm (MOGA) method (or parallel MOGA with the same number of optimization approach objective function evaluations). The only use of MOGA can reach the region near an optimal Pareto front, but it consumes more computing time than the multiobjective optimization approach. At each flowchart stage, parallelization leads to a significant reduction of computing time which is halved when using two-core machine.
Originality/value
– In order to solve the multiobjective problem, a hybrid algorithm based on MOGA is developed.
In order to minimize the oscillations and the overflow of the dynamic response of linear step actuators over two successive step displacements, a control approach, based on commutation instant optimization, is developed and applied to a linear step actuator. The obtained results are, then, validated using an experimental test bench.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.