Membrane-Enhanced Lamina Emergent Torsional Joints for Surrogate Folds

被引:32
作者
Chen, Guimin [1 ,2 ]
Magleby, Spencer P. [2 ]
Howell, Larry L. [2 ]
机构
[1] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China
[2] Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA
基金
中国国家自然科学基金; 美国国家科学基金会;
关键词
DESIGN;
D O I
10.1115/1.4039852
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Lamina emergent compliant mechanisms (including origami-adapted compliant mechanisms) are mechanical devices that can be fabricated from a planar material (a lamina) and have motion that emerges out of the fabrication plane. Lamina emergent compliant mechanisms often exhibit undesirable parasitic motions due to the planar fabrication constraint. This work introduces a type of lamina emergent torsion (LET) joint that reduces parasitic motions of lamina emergent mechanisms, and presents equations for modeling parasitic motion of LET joints. The membrane joint also makes possible oneway joints that can ensure origami-based mechanisms emerge from their flat state (a change point) into the desired configuration. Membrane-enhanced LET (M-LET) joints, including one-way surrogate folds, are described here and show promise for use in a wide range of compliant mechanisms and origami-based compliant mechanisms. They are demonstrated as individual joints and in mechanisms such as a kaleidocycle (a 6R Bricard linkage), degree-4 origami vertices (spherical mechanisms), and waterbomb base mechanisms (an 8R multi-degrees-of-freedom origami-based mechanism).
引用
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页数:10
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