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RISType Synthesis of Two Degrees of Freedom 3 4R Parallel Mechanisms With Both Spherical Translation Mode and Sphere on Sphere Rolling Mode
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Parallel manipulators (PMs) with multiple operation modes are novel reconfigurable PMs, which use less number of actuators and can be reconfigured without disassembly. This paper deals with the type synthesis of 2DOF ...
Algebraic Method for Exact Synthesis of One-Degree-of-Freedom Linkages With Arbitrarily Prescribed Constant Velocity Ratios
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper addresses the synthesis of one degree-of-freedom (1DOF) linkages that can exactly transmit angular motion between coplanar axes (i.e., parallel axes or intersectant axes) with arbitrarily prescribed constant ...
Rigid-Compliant Hybrid Cellular Expansion Mechanisms With Motion Amplification and Superposition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Motivated by heat dissipation, the rigid-compliant hybrid cellular expansion mechanisms with motion amplification and superposition are proposed in this paper. Compared with existing studies, the expansion mechanism is not ...
Reconfiguration Analysis of a Two Degrees of Freedom 3 4R Parallel Manipulator With Planar Base and Platform1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper deals with a 2DOF (degreesoffreedom) 34R parallel manipulator (PM) with planar base and platform—a novel PM with multiple operation modes (or disassembly free reconfigurable PM) that can use the minimum number ...
Identification and Comparison for Continuous Motion Characteristics of Three Two-Degree-of-Freedom Pointing Mechanisms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two-degree-of-freedom (2DOF) pointing mechanisms, including the gimbal structure, the 1-RR&2-RRR spherical parallel mechanism (SPM), and the Omni-Wrist III, are increasingly applied in tracking devices, mechanical ...
Modeling of a Cartwheel Flexural Pivot
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A cartwheel flexural pivot has a small center shift as a function of loading and ease of manufacturing. This paper addresses an accurate model that includes the loading cases of a bending ...
An Analytical Approach for Synthesizing Line Actuation Spaces of Parallel Flexure Mechanisms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, we present an analytical approach for synthesizing line actuation spaces of a parallel flexure mechanism (PFM) that can help designers to arrange linear actuators within the PFM in a correct and optimal way. ...
Deterministic Design for a Compliant Parallel Universal Joint With Constant Rotational Stiffness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Compliant universal joints have been widely employed in high-precision fields due to plenty of good performance. However, the stiffness characteristics, as the most important consideration for compliant mechanisms, are ...
Design of Deployable Mechanisms Based on Wren Parallel Mechanism Units
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a series of deployable mechanisms based on n-UU (universal joint) Wren parallel mechanism (PM) units, which undergo one degree-of-freedom (DOF) Borel–Bricard motion. First, the PM unit is developed into ...
A Family of Novel Compliant Linear-Motion Mechanisms Based on Compliant Rolling-Contact Element Pivot
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Compliant linear-motion mechanisms are of great use in precision machines due to their excellent performances such as infinite resolution and low cost. The accuracy of the mechanisms is an important consideration for ...