الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Compliant mechanism is a monolithic mechanism gains its motion from the flexibility of the mechanism. No friction, no assembly and miniaturization are the main advantages of this mechanism. The current work focuses on studying and analysing the compliant mechanism. The research is divided into four parts. The first part focuses on presenting the different approaches that explain the behaviour of the compliant mechanism. The pseudo rigid body model, one of the kinematics-based approach, is studied.
The rhombus type, one of the displacement amplification techniques is presented in the second part. The rhombus type is studied in detail by the pseudo model and the finite element analysis. The sensitivity analysis of the rhombus parameters by ISIGHT software is implemented and then optimization of the investigated rhombus is established. The new rhombus design is introduced to enhance the performance of rhombus and the results are promising. The study is implemented by the pseudo rigid body model and validated by the finite element analysis.
The third part is about the application of the rhombus technique in positioning stage compliant mechanism. The two-stage Z positioning compliant mechanism with traditional design and new rhombus design is analysed by the pseudo rigid body model, implemented on MATLAB, and the finite element analysis using ANSYS software. The optimization of new rhombus design is implemented using ISIGHT software integrated with MATLAB.
The new rhombus design improves the performance significantly. To enhance fundamental frequencies of investigated compliant mechanism, boundary constraint is modified using constraint beams with two stages. Fatigue failure of Z positioning stage compliant mechanism is investigated using ANSYS software.
In the fourth part of this work, XY positioning stage compliant mechanism is investigated by sensitivity analysis. Evaluation of friction loss in traditional linkage mechanism equivalent to XY positioning stage compliant mechanism is presented.