Abstract
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 in the case of ordinary mechanisms,
(ii) to solve the equilibrium problem by means of a 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 sub-chains is implemented, so that any CM subjected to such disaggregation can be accurately modeled. For this purpose a mathematical model for the 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 Degree-Of-Freedom (3-DOF) flexurebased
parallel mechanism is used as case study. Results are compared with a Finite Element Analysis (FEA).
Original language | English |
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Title of host publication | The 13. World Congress in Mechanism and Machine Science : IFToMM 2011 |
Publication date | 2011 |
Pages | A24-434 |
Publication status | Published - 2011 |
Event | 13th World Congress in Mechanism and Machine Science - Guanajuato, Mexico Duration: 5 Sept 2011 → 8 Sept 2011 Conference number: 13th |
Conference
Conference | 13th World Congress in Mechanism and Machine Science |
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Number | 13th |
Country/Territory | Mexico |
City | Guanajuato |
Period | 05/09/2011 → 08/09/2011 |
Keywords
- Compliant mechanism
- Assur group
- Pseudo-Rigid Body Model
- Force-displacement model
- Large deflection analysis,