Amplification ratio analysis of a bridge-type mechanical amplification mechanism based on a fully compliant model

被引:73
|
作者
Choi, Kee-Bong [1 ]
Lee, Jae Jong [1 ]
Kim, Gee Hong [1 ]
Lim, Hyung Jun [1 ]
Kwon, Soon Geun [1 ]
机构
[1] Korea Inst Machinery & Mat, 156 Gajeongbuk Ro, Daejeon 34103, South Korea
基金
新加坡国家研究基金会;
关键词
Amplification ratio; Flexure hinge; Bridge-type mechanical amplification mechanism; Flextensional amplification mechanism; Piezo actuator; DISPLACEMENT AMPLIFICATION; PIEZOELECTRIC ACTUATORS; OPTIMIZATION; DESIGN; STIFFNESS; AMPLIFIER; RAINBOW; DRIVEN; HINGE;
D O I
10.1016/j.mechmachtheory.2017.11.002
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This study proposes a new mathematical model for the amplification ratio of a single-stair bridge-type amplification mechanism. To overcome the limitations of previous models, all members of the amplification mechanism are assumed to be compliant. The proposed model is compared to conventional models as well as analysis results using finite element models, after which the effects of the dimensions of each member are investigated. In addition, design optimization is carried out. Finally, the usefulness of this mathematical model is verified by an experiment using the optimally designed mechanism. As a result, the proposed mathematical model very aptly describes the displacement amplification ratio of the single-stair bridge-type amplification mechanism. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:355 / 372
页数:18
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