A novel flexural lamina emergent spatial joint
TL;DR: In this article, a flexural Lamina Emergent Spatial (LES) joint is proposed to decompose large spatial rotations by employing the combination of a Out-of-plane Rotational Part (ORP) and a In-plane Rotation Part (IRP).
About: This article is published in Mechanism and Machine Theory.The article was published on 2019-12-01. It has received 19 citations till now. The article focuses on the topics: Compliant mechanism.
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TL;DR: In this article, a one-DoF rigid body model is developed focusing on the pole of the displacements associated to the poses of the free-end section, and two different cases are analyzed, depending on whether the pole is a proper point or an improper point.
17 citations
TL;DR: In this paper, the analysis of a variable stiffness filleted leaf hinge is presented, which consists of a flexible segment and 12 rigid supports, and the results show that the hinge is capable of variable stiffness, the stiffness can be changed in a large range.
14 citations
TL;DR: In this article, a compliant universal joint using four identical generic sheet flexures (short sheets) and a long wire beam is presented, which is robust to axial buckling in bi-direction.
11 citations
TL;DR: A corrugated flexure-based lamina emergent spatial (CF-LES) joint is introduced for the design and analysis of symmetrical compliant kaleidocycles and the potential applications are discussed.
11 citations
TL;DR: A design method to achieve large deformation of Lamina Emergent torsional (LET) joints in multiple directions through origami technology through a Foldable mortise-tenon structure (FMTS).
10 citations
References
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TL;DR: Optimisation de la cinematique d'un manipulateur utilisant un mecanisme parallele spherique a trois degres de liberte.
Abstract: Optimisation de la cinematique d'un manipulateur utilisant un mecanisme parallele spherique a trois degres de liberte
812 citations
TL;DR: In this article, the drawbacks of typical flexure connectors are investigated and cataloged, and several new designs for highly effective, kinematically-behaved compliant joints are proposed.
Abstract: Flexure joints are widely used to approximate the function of traditional mechanical joints, while offering the benefits of high precision, long life, and ease of manufacture. This paper investigates and catalogs the drawbacks of typical flexure connectors and presents several new designs for highly-effective, kinematically-behaved compliant joints. A revolute and a translational compliant joint are proposed (Figure 1), both of which offer great improvements over existing flexures in the qualities of (1) large range of motion, (2) minimal axis drift, (3) increased off-axis stiffness, and (4) reduced stress-concentrations. Analytic stiffness equations are developed for each joint and parametric computer models are used to verify their superior stiffness properties. A catalog of design charts based on the parametric models is also presented, allowing for rapid sizing of the joints for custom performance. Finally, two multi-degree-of-freedom joints are proposed as modifications to the revolute joint. These include a compliant universal joint and a compliant spherical joint, both designed to provide high degrees of compliance in the desired direction of motion and high stiffness in other directions.Copyright © 2002 by ASME
339 citations
TL;DR: The kinematic and dynamic modeling of the manipulator are conducted by resorting to compliance and stiffness analysis based on the matrix method, which are validated by finite-element analysis (FEA).
Abstract: In this paper, a concept of totally decoupling is proposed for the design of a flexure parallel micromanipulator with both input and output decoupling. Based on flexure hinges, the design procedure for an XY totally decoupled parallel stage (TDPS) is presented, which is featured with decoupled actuation and decoupled output motion as well. By employing (double) compound parallelogram flexures and a compact displacement amplifier, a class of novel XY TDPS with simple and symmetric structures are enumerated, and one example is chosen for further analysis. The kinematic and dynamic modeling of the manipulator are conducted by resorting to compliance and stiffness analysis based on the matrix method, which are validated by finite-element analysis (FEA). In view of predefined performance constraints, the dimension optimization is carried out by means of particle swarm optimization, and a prototype of the optimized stage is fabricated for performance tests. Both FEA and experimental studies well validate the decoupling property of the XY stage that is expected to be adopted into micro-/nanoscale manipulations.
336 citations
Book•
01 Jan 2013
TL;DR: Because compliant mechanisms are relatively new compared to more traditional devices, it is difficult to find examples and resources to guide the device designers in their work.
Abstract: pt. 1. Introduction to compliant mechanisms -- pt. 2. Modeling of compliant mechanisms -- pt. 3. Synthesis of compliant mechanisms -- pt. 4. Library of compliant mechanisms.
335 citations
143 citations