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Study on the Thermal Analysis and Control of the Giant Magnetostrictive Actuator Used for Precision Position

Author: GuiLiFei
Tutor: WangWen
School: Zhejiang University
Course: Mechanical Manufacturing and Automation
Keywords: Giant Magnetostrictive Actuator (GMA) Precision Positioning Thermal Deformation Structure optimizing Compulsive Cooling with Water Temperature Control
CLC: TH703
Type: Master's thesis
Year: 2008
Downloads: 146
Quote: 1
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Abstract


High precision drivers play a crucial role in modern industrial production and scientific research. Giant Magnetostrictive Actuator (GMA) driving accurate displacement based on GMM’s axial magnetostrictive effect, with great strain, great potential energy, rapid respond speed, and can work in a wide temperature. Driving coil heating and environmental temperature changing lead to heat distortion. In order to increase the driving accuracy, it necessary to analysis the reasons to the error, and do researching to eliminate or reduce the heat distortion.Chapter 1 describe some typical micro-displacement technology, introduced GMA and GMM. Expounded on the current situation at domestic and abroad, finally introduced the main content of this paper. Chapter 2 study the temperature and heat distortion, using finite element software to analysis GMA temperature field and the heat distortion. Chapter 3 optimize the coil size and design the heat transfer structure. Chapter 4 design a water cooling temperature control system. Chapter 5 is experiment study, including temperature control stability and robust experiment, temperature-displacement experiment. Finally, Chapter 6 provides an overview of the paper, and looking to the future direction for further work.

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