Force-Displacement Model of Compliant Mechanisms using Assur Sub-Chains
Fecha
2011-06
Autores
Durango, S.
Correa, J.
Ruíz, O.
Aristizábal, M.
Restrepo-Giraldo, J.
Achiche, S.
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Resumen
This article develops a modular procedure to perform force-displacement modeling of planar flexurebased compliant mechanisms (CMs) -- The procedure is mostly suitable for planar lumped CMs -- To achieve the position analysis of CMs requires: (i) to implement the kinematic analysis as for ordinary mechanisms, (ii) to solve equilibrium problem by means of an static analysis and (iii) to model the flexures behavior through a deflection analysis -- The novel contribution of this article relies on the fact that a division strategy of the CM into Assur subchainsm is implemented, so that any CM subjected to such disaggregation can be accurately modeled -- For this purpose a mathematical model for leaf-spring flexure type is presented and used through this paper -- However any other flexure model can be used instead -- To support the technique, a three Degrees–Of–Freedom (3-DOF) flexure-based parallel mechanism is used as case study -- Results are compared to a Finite Element Analysis (FEA)
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@inbook{force_displacement_durango,
title = "Force-Displacement Model of Compliant Mechanisms Using Assur Sub-Chains",
keywords = "Compliant mechanism, Assur group, Pseudo-Rigid Body Model, Force-displacement model, Large deflection analysis,",
author = "Sebastian Durango and Jorge Correa and Mauricio Aristizabal and Oscar Ruiz and Restrepo-Giraldo, {John Dairo} and Sofiane Achiche",
year = "2011",
pages = "A24--434",
booktitle = "The 13. World Congress in Mechanism and Machine Science",
}