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Ingeniería mecánica, tecnología y desarrollo

versión impresa ISSN 1665-7381


LARA-LOPEZ, Arturo et al. Dynamic Analysis of Pneumatically Actuated Mechanisms. Ingenier. mecáni. tecnolog. desarroll [online]. 2010, vol.3, n.4, pp.123-134. ISSN 1665-7381.

The dynamic behavior of pneumatically driven systems is analyzed in this paper. First a basic model consisting of a single pivoted link pneumatically actuated against an external force is discussed. Resulting mathematical model is the basic foundation to formulate models for more complex mechanisms. Then, the analysis is extended to a four bar mechanism, where the input link is driven by a pneumatic cylinder and the external force is applied against the output link. Models for both systems were obtained from direct application of dynamic and thermodynamic principles and kinematics relations, incorporating physical characteristics of the mechanisms and the effect of air conditions, tank size and piston cushion. Such parameters can be manipulated for design purposes. Experimental apparatus were constructed to measure the dynamic response of both models (the single pivoted link and the four bar mechanism). Experimental data where compared with the theoretical response showing good agreement.

Palabras clave : Pneumatically actuated mechanisms; dynamics of mechanisms.

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