A Two-Dimensional Adjustable Constant-Force Mechanism
Journal
Journal of Mechanical Design
Journal Volume
142
Journal Issue
6
Start Page
063304 EN
ISSN
10500472
Date Issued
2020
Author(s)
Kuo, Yuling
Abstract
Constant-force mechanisms (CFMs) can produce an almost invariant output force over a limited range of input displacement. Without using additional sensor and force controller, adjustable CFMs can passively produce an adjustable constant output force to interact with the working environment. In the literature, one-dimensional CFMs have been developed for various applications. This paper presents the design of a novel CFM that can produce adjustable constant force in two dimensions. Because an adjustable constant force can be produced in each radial direction, the proposed adjustable CFM can be used in applications that require two-dimensional force regulation. In this paper, the design formulation and simulation results are presented and discussed. Equations to minimize the output force variation are given to choose the design parameters optimally. A prototype of the two-dimensional CFM is tested to demonstrate the effectiveness and accuracy of adjustable force regulation. This novel CFM is expected to be used in machines or robots to interact friendly with the environment.
Subjects
Compliant Mechanism
Constant-force Mechanism
Design Of Innovative Devices Design Of Machine Elements
Planar Spring
Spring Design
Two-dimensional
Zero Stiffness
Compliant Mechanisms
Mechanisms
Constant Force Mechanisms
Design Of Innovative Device Design Of Machine Element
Device Design
Dimensional Constants
Machine Element
Output Force
Planar Spring
Spring Designs
Two-dimensional
Zero Stiffness
Machine Design
SDGs
Publisher
American Society of Mechanical Engineers (ASME)
Type
journal article