Linear Modeling for Input-Output Relations of a Rhombic Micro-Displacement Piezoelectric Actuator[J]. 2014, 48(5): 102-106.
DOI:
Linear Modeling for Input-Output Relations of a Rhombic Micro-Displacement Piezoelectric Actuator[J]. 2014, 48(5): 102-106.DOI: 10.7652/xjtuxb201405018.
Linear Modeling for Input-Output Relations of a Rhombic Micro-Displacement Piezoelectric Actuator
A rhombic micro-displacement piezoelectric actuator(RMPA)is proposed to deal with the displacement output of a positioning device. The RMPA consists of three parts
i.e.
a Pb based lanthanum doped zirconate titanate(PZT)actuator
a flexible hinge
and a rhombic amplification mechanism. The geometric amplification relations of amplification mechanism are analyzed. The mechanism can amplify the displacement output from 30 μm to 100 μm
and the magnification coefficient is proportionally magnified in a rated range and is related to the rhombic ring angle θ
which can provide a basis for design of rhombic amplification mechanism with greater magnification coefficient. A linear model of RMPA input and output relation is constructed
and the comparison between the linear model and experiments shows that the theoretical linear model has better expression for RMPA and higher accuracy.
关键词
Keywords
references
XU W, KING T. Flexure hinges for piezoactuator displacement amplifiers: flexibility, accuracy, and stress considerations[J]. Precis Eng, 1996, 19(1): 4-10.
OUYANG P R, ZHANG W J, GUPTA M M. A new compliant mechanical amplifier based on a symmetric five-bar topology[J]. J Mech Des, 2008, 130(10): 104501.
ZUBIR M N M, SHIRINZADEH B. Development of a high precision flexure-based microgripper[J]. Precis Eng, 2009, 33(4): 362-370.
TIAN Y, SHIRINZADEH B, ZHANG D. Development and dynamic modelling of a flexure-based Scott-Russell mechanism for nano-manipulation[J]. Mech Syst Signal Proc, 2009, 23(3): 957-978.
JAMES F T, ROBERT E N. Special issue correspondence doubly resonant cymbal-type transducers[J]. IEEE Trans Ultrason, Ferro Elect, Freq Contr, 1997, 44(5): 1175-1177.
ISHII Y, THUMME T, HORIE M. Dynamic characteristic of miniature molding pantograph mechanisms for surface mount systems[J] Microsyst Technol, 2005, 11(8/9/10): 991-996.
MURAOKA M, SANADA S. Displacement amplifier for piezoelectric actuator based on honeycomb link mechanism[J] Sensors and Actuators: A Physical, 2010, 157: 84-90.
WANG Longtai, ZHOU Zhiping, MA Zhixin. Analysis on magnification ability and loading capacity of displacement magnification mechanism of flexible hinge[J]. Journal of Machine Design, 2007, 24(7): 11-13.
LI Wanquan, GAO Changyin, FENG Diyun. Design on piezoelectric actuator based on hydraulic micro-displacement amplifying mechanism[J]. Machine Tool Hydraulics, 2011, 39(5): 88-89.
SHIN H C, CHOI S B. Position control of a two-link flexible manipulator featuring piezoelectric actuators and sensors[J]. Mechatronics, 2001, 11(6): 707-729.