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Communication Dans Un Congrès Année : 2014

Robust design of a vibro-impact electromechanical system

Résumé

In this paper, the robust design with an uncertain model of a vibro-impact electro-mechanical system is done. The electro-mechanical system is composed of a cart, whose motion is excited by a DC motor, and an embarked hammer into this cart. The hammer is connected to the cart by a nonlinear spring component and by a linear damper, so that a relative motion exists between them. A linear flexible barrier, placed outside of the cart, constrains the hammer movements. Due to the relative movement between the hammer and the barrier, impacts can occur between these two elements. The developed model of the system takes into account the influence of the DC motor in the dynamic behavior of the system. Some system parameters are uncertain, such as the stiffness and the damping coefficients of the flexible barrier. The objective of the paper is to perform an optimization of this electro-mechanical system with respect to design parameters (spring component, and gap of the barrier) in order to maximize the impact power under the constraint that the electric power consumed by the DC motor is lower than a maximum value. This optimization is formulated in the framework of robust design due to the presence of uncertainties in the model.
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Dates et versions

hal-01066576 , version 1 (21-09-2014)

Identifiants

  • HAL Id : hal-01066576 , version 1

Citer

R. Lima, Christian Soize, R. Sampaio. Robust design of a vibro-impact electromechanical system. XXI Congress on Numerical Methods and their Applications, MeCom - ENIEF 2014, Sep 2014, Bariloche, Patagonia, Argentina. pp.1-7. ⟨hal-01066576⟩
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