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Design and Analysis of Leaf Beam Single-Translation Constraint Compliant Modules and the Resulting Spherical Joints.
- Source :
-
Journal of Mechanical Design . Aug2024, Vol. 146 Issue 8, p1-16. 16p. - Publication Year :
- 2024
-
Abstract
- A wire beam is a single-translation constraint along its axial direction. It offers many applications in compliant mechanisms, such as being a transmitting/decoupling element connected to a linear actuator and being a fundamental constitutive element to design complex compliant joints and mechanisms. It is desired to find an alternative leaf beam single-translation constraint to equal a wire beam in order to improve the manufacturability and robustness to external loading. In this paper, we propose and model a new single-translation constraint compliant module, I-shape leaf beam design, to compare with a corresponding L-shape leaf beam design reported in the literature. Two spherical (S) joints using three I-shape leaf beams and three L-shape leaf beams, respectively, are then analytically modeled and analyzed. Three key geometric parameters are adopted to thoroughly assess four performance indices of each S joint, including stiffness ratio, rotation radius error, coupling motion, and parasitic motion. It shows that the I-shape leaf beam-based S joint performance indices are generally 10 times better than those of the L-shape leaf beam-based S joint. For each S joint, the optimal parameters are found under the given conditions. Finally, experimental tests are carried out for a fabricated S joint prototype using the I-shape leaf beams, the results from which verify the accuracy of the proposed analytical model and the fabrication feasibility. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COMPLIANT mechanisms
*FOLIAR diagnosis
*DESIGN
Subjects
Details
- Language :
- English
- ISSN :
- 10500472
- Volume :
- 146
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Journal of Mechanical Design
- Publication Type :
- Academic Journal
- Accession number :
- 178490375
- Full Text :
- https://doi.org/10.1115/1.4064415