contributor author | Wu, Yi | |
contributor author | Lan, Chao | |
date accessioned | 2017-05-09T01:10:49Z | |
date available | 2017-05-09T01:10:49Z | |
date issued | 2014 | |
identifier issn | 1050-0472 | |
identifier other | md_136_12_122302.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/155731 | |
description abstract | A machine with an internal variablestiffness mechanism can adapt its output force to the working environment. In the literature, linear variablestiffness mechanisms (LVSMs) are rarer than those producing rotary motion. This paper presents the design of a class of novel LVSMs. The idea is to parallel connect two lateral curved beams with an axial spring. Through preload adjustment of the curved beams, the output forcetodisplacement curves can exhibit different stiffness. The merit of the proposed LVSMs is that very largestiffness variation can be achieved in a compact space. The stiffness can even be tuned to zero by assigning the appropriate stiffness to the axial spring. LVSMs with pinned curved beams and fixed curved beams are investigated. To achieve the largest stiffness variation with sufficient linearity, the effects of various parameters on the force curves are discussed. Techniques to scale an LVSM and change the equilibrium position are introduced to increase the usefulness of the proposed design. Finally, the LVSMs are experimentally verified through prototypes. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Linear Variable Stiffness Mechanisms Based on Preloaded Curved Beams | |
type | Journal Paper | |
journal volume | 136 | |
journal issue | 12 | |
journal title | Journal of Mechanical Design | |
identifier doi | 10.1115/1.4028705 | |
journal fristpage | 122302 | |
journal lastpage | 122302 | |
identifier eissn | 1528-9001 | |
tree | Journal of Mechanical Design:;2014:;volume( 136 ):;issue: 012 | |
contenttype | Fulltext | |