Optimum Design of a Planar 3-DOF Ultra-Precision Positioning Mechanism Using a Booster

2006 ◽  
Vol 306-308 ◽  
pp. 667-672
Author(s):  
Seok Yoon Han ◽  
J.O. Kim ◽  
J.Y. Park ◽  
Byung Ju Yi ◽  
G.B. Chung
Keyword(s):  
Natural Frequency ◽  
Optimum Design ◽  
Theoretical Approach ◽  
Close Agreement ◽  
Flexure Hinge ◽  
Functional Requirements ◽  
Optimal Parameters ◽  
Precision Positioning ◽  
Positioning Systems ◽  
Ultra Precision

Ultra-precision positioning systems basically require high natural frequency and sufficient workspace. To cope with this requirement, flexure hinge mechanisms have been proposed. However, previous designs have difficulty satisfying the functional requirements of the system due to problems in the modeling and optimization process since they are coupled. Therefore, this paper performs optimum design of a planar 3-D ultra-precision positioning mechanism using a booster based on axiomatic design. Based on preliminary kinematic analysis and dynamic modeling of the system, an optimum design is conducted. To examine the effectiveness of the optimal parameters obtained by a theoretical approach, a simulation is performed by FEM. The simulation result shows that a natural frequency of 200.53Hz and a workspace of 200 μm x 200 μm can be ensured, which is in very close agreement with the specified goal of design.

scholarly journals Approaches for Detailed Modelling of Ultra-Precision Positioning Systems

2016 ◽  
Vol 06 (01) ◽  
pp. 44-50 ◽  
Author(s):  
Dominik Dahlmann ◽  
Nesrine Sassi ◽  
Berend Denkena
Keyword(s):  
Precision Positioning ◽  
Positioning Systems ◽  
Detailed Modelling ◽  
Ultra Precision

Precision Positioning Systems: An Overview of the State of Art

2013 ◽  
Vol 336-338 ◽  
pp. 1170-1173 ◽  
Author(s):  
Francesco Aggogeri ◽  
Alberto Borboni ◽  
Rodolfo Faglia ◽  
Angelo Merlo ◽  
Sara de Cristofaro
Keyword(s):  
High Precision ◽  
Rapid Growth ◽  
The State ◽  
Flexure Hinge ◽  
Actual State ◽  
Positioning System ◽  
Precision Positioning ◽  
Positioning Systems ◽  
Innovative Solutions ◽  
State Of Art

In the industrial world the interest in Precision Positioning Systems is exponentially increasing in relation to the rapid growth of Ultra High Precision (UHP) machining. A greater attention is given to traditional techniques and developing of innovative solutions. This paper intends to present a review of the actual state of art in precision positioning system based on flexure hinge related to industrial machines, showing a comparison between different techniques.

scholarly journals Behavior Analysis of a Flexure Hinge Array

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Ngoc Le Chau ◽  
Ngoc Thoai Tran ◽  
Thanh-Phong Dao
Keyword(s):  
Optimization Algorithm ◽  
Compliant Mechanisms ◽  
High Accuracy ◽  
Analytical Models ◽  
Flexure Hinge ◽  
Optimal Parameters ◽  
Positioning Systems ◽  
Practical Applications ◽  
Moth Flame Optimization Algorithm ◽  
Theoretical Results

Compliant mechanisms have been well designed to reach an ultra-high accuracy in positioning systems. However, the displacement of compliant mechanisms is still a major problem that restricts practical applications. Hence, a new flexure hinge array (FHA) is proposed to improve its displacement in this article. This paper is aimed to design and optimize the FHA. The structure of FHA is constructed by series-parallel array. Analytical calculations of the FHA are derived so as to analyze the stiffness and deformation. The displacement of the FHA is optimized by moth-flame optimization algorithm. The results determined that optimal parameters are found at Lt1 of 20.58 mm, w t 1 of 1.92 mm, and w t 2 of 2.29 mm. Besides, the optimal displacement is about 27.02 mm. Through Kruskal–Wallis test, the results verified that the proposed MFO outperforms other optimization algorithms in terms of searching the largest displacement. Validations of the analytical models are verified through simulations and experiments. The theoretical results are close to the experimental results. Additionally, the displacement of the FHA is superior that of existing joints. The displacement in the z-direction is approximately 32 mm according to a displacement of 12 mm in the x-direction.

Sign in / Sign up

Export Citation Format

Share Document