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Based on the principle of triangulation amplified piezoelectric precision positioning institutional research

Author: DuXiBo
Tutor: ChenXiPing
School: Henan Polytechnic University
Course: Mechanical Design and Theory
Keywords: Piezoelectric Actuators Flexible hinge Triangulation Micro-displacement positioning mechanism Nanometer resolution
CLC: TH703
Type: Master's thesis
Year: 2009
Downloads: 78
Quote: 1
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Abstract


This article comes from \Through access to a large number of relevant literature , proposed a piezoelectric actuator as the driving element , triangular amplification principle of the flexible hinge mechanism as a displacement output supple positioning mechanism design. This paper first micro-displacement positioning mechanism of the basic composition and piezoelectric actuators basic theories do exposition elaborated multilayer piezoelectric ceramic actuator works, flexible hinge works , and the flexible hinge corner stiffness formulas are derived , and the preparation of the corresponding computer program . This article has been followed by micro-displacement machine positioning mechanism design, the overall structure of micro- displacement mechanism for the theoretical analysis and modeling agencies draw micro-displacement amplification and power output characteristics , and then using the finite element analysis software for micro-displacement positioning institutions statics analysis, the displacement of the agency relationship between input and output for the agency's stress check , and the hinge parameters were optimized. Finally designed a micro-displacement position shift mechanism of the prototype , and conducted displacement - voltage characteristics , the displacement resolution and other tests , the test results are analyzed , come to the conclusion: positioning mechanism stroke 3.5μm, a resolution of 18nm.

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