Design and experiment of a millimeter-range and high-frequency compliant mechanism with two output ports

被引：21
作者：
Chen, Shenglai [1 ,2 ]
Ling, Mingxiang [2 ]
Zhang, Xinong [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Aerosp, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Shaanxi, Peoples R China
[2] China Acad Engn Phys, Inst Syst Engn, Mianyang 621999, Peoples R China
来源：
MECHANISM AND MACHINE THEORY | 2018年 / 126卷
基金：
中国国家自然科学基金;
关键词：
Compliant mechanisms; Flexure hinge; Piezoelectric actuator; Multistage amplifier; Precision positioning stage; DISPLACEMENT AMPLIFICATION MECHANISM; POSITIONING STAGE; ACTUATOR; TENSILE; MODE;
D O I：
10.1016/j.mechmachtheory.2018.04.003
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper addresses a piezoelectric-actuated compliant mechanism with two output ports to provide tensile and compressive forces along with high dynamic motions for static tension and high-cycle dynamic fatigue testing of small-scale specimens or other precision flexible manipulation applications. A rhombus-type planar multistage displacement amplifier with a pair of guiding flexible beams is designed to realize a millimeter stroke while retaining high fundamental frequency. Improved effect of the guiding flexible beams on the vibration modes and attenuating impact on the output displacement are analyzed respectively by finite element analysis and theoretical kinematics modeling. A prototype is manufactured and the experimental performance evaluation shows a maximum stroke range of 1.44 mm (+/- 720 mu m) with the fundamental frequency of 628 Hz. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：201 / 209
页数：9
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