Derivation of Dynamical Governing Equations of Convex Mirrors with<br/>Network of Actuators

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Derivation of Dynamical Governing Equations of Convex Mirrors with
Network of Actuators

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45831 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Jalali, Mir Abbas
Abstract:
The turbulence in the atmosphere will limit the performance of astronomical telescopes on the ground thus a technique for solving this problem is needed that is Adaptive optics technique. We know Adaptive optics in its simplest definition as a process to improve the quality of image by means of deformation of the wave fronts to compensate the beam path anomalies. The main components of this system are the wave front sensor and deformable mirror. Deformable mirror is used in the system of this technique also plays an important role in the correction of anomalies of eye. Type of actuators that can be used for deformable mirror, pattern of them, and also the way of connecting the actuators to the mirror is effective on the resulting deformation of mirror. The aim of this project is present of a new method for changing the shape of secondary mirrors. In This project we consider the deformable mirror as a plate with initial curvature; we consider that the fabric of spider-shaped actuator is embedded on this plate and use of plate and shell's theory to the analysis of deformation of plate that affected by changing the length of the actuator
Keywords:
Adaptive Optics ; Deformable Mirror ; Circular Plate ; Galerkin Method

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