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Study on Piezoelectric Precision Step Rotary Actuator

Author: YinDaLiang
Tutor: ShenJian
School: Hefei University of Technology
Course: Mechanical Design and Theory
Keywords: Stepping rotation Flexible hinge Micro - displacement mechanism
CLC: TH703
Type: Master's thesis
Year: 2009
Downloads: 47
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Abstract


Micro - displacement of electromechanical systems widely used in microelectronic engineering , measurement science and technology , precision engineering , bio-engineering , nano- science and technology and other fields . Micro- step rotary drive is one of the key components of the micro-displacement electromechanical systems . Designed a new micro- step rotary drive , the core component of the drive - the motion conversion mechanism - using spiral deformation theory and symmetrical structure , the the axial micro displacement of a piezoelectric actuator is converted into micro angular displacement output , sports the conversion mechanism compatible with clamp movement , micro- stepper output shaft of the rotary drive continuous rotation ; paper also analyzes the piezoelectric ceramic material of the drive and the operating mode , the rotary drive modeling ; simplified model of the motion conversion mechanism finite element analysis , obtained formula and verify its core components - output angular displacement axial displacement of the motion conversion mechanism into a linear relationship between the applied load and axial displacement of a linear relationship ; addition, on the state of the main structure of the rotary drive finite element analysis, this step rotary drive mode .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > General issues > Structure
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