Journal ArticleDOI
Design of single-axis flexure hinges using continuum topology optimization method
TLDR
In this article, a method for designing the single-axis flexure hinges in the topology level is presented, where two kinds of hinges, the translational hinge and the revolute hinge, are studied.Abstract:
The design of compliant hinges has been extensively studied in the size and shape level in the literature. This paper presents a method for designing the single-axis flexure hinges in the topology level. Two kinds of hinges, that is, the translational hinge and the revolute hinge, are studied. The basic optimization models are developed for topology optimization of the translational hinge and the revolute hinge, respectively. The objective for topology optimization of flexure hinges is to maximize the compliance in the desired direction meanwhile minimizing the compliances in the other directions. The constraints for accomplishing the translational and revolute requirements are developed. The popular Solid Isotropic Material with Penalization method is used to find the optimal flexure hinge topology within a given design domain. Numerical results are performed to illustrate the validity of the proposed method.read more
Citations
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Journal ArticleDOI
Design of compliant mechanisms using continuum topology optimization: A review
TL;DR: A survey of the state-of-the-art design advances in this research area over the past 20 years is presented and can be helpful to those engaged in the topology optimization of compliant mechanisms who desire to be apprised of the field’s recent state and research tendency.
Journal ArticleDOI
Design and analysis of a multi-notched flexure hinge for compliant mechanisms
TL;DR: In this article, a multi-notched flexure hinge with two right circular and two parabolic notches for positioning stages based on compliant mechanisms is presented, and the stiffness, rotational precision and stress levels of flexure hinges are investigated.
Journal ArticleDOI
General design equations for the rotational stiffness, maximal angular deflection and rotational precision of various notch flexure hinges
TL;DR: In this article, the rotational stiffness, maximal angular elastic deflection and rotational precision of various notch flexure hinges in dependence of the geometric hinge parameters are calculated on the basis of a nonlinear analytical model for a moment and a transverse force loaded beam with a variable contour height.
Journal ArticleDOI
Design and analysis of a high-accuracy flexure hinge
TL;DR: The new quasi-V-shaped flexure hinge obtained by using a topology optimization approach has a higher accuracy of rotation and better ability of preserving the center of rotation position but smaller compliance.
Journal ArticleDOI
Topology optimisation of bridge input structures with maximal amplification for design of flexure mechanisms
TL;DR: In this paper, bridge-type structures are developed which maximise the output displacement using topology optimisation, and the variation of the geometry due to changing mechanism stiffness is studied.
References
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Book
Topology Optimization: Theory, Methods, and Applications
Martin P. Bendsøe,Ole Sigmund +1 more
TL;DR: In this article, the authors proposed a topology optimization by distribution of isotropic material for truss structures with anisotropic materials, based on the topology design of truss structure.
Journal ArticleDOI
The method of moving asymptotes—a new method for structural optimization
TL;DR: In this article, a new method for non-linear programming in general and structural optimization in particular is presented, in which a strictly convex approximating subproblem is generated and solved.
Journal ArticleDOI
A level set method for structural topology optimization
TL;DR: A new approach to structural topology optimization that represents the structural boundary by a level set model that is embedded in a scalar function of a higher dimension that demonstrates outstanding flexibility of handling topological changes, fidelity of boundary representation and degree of automation.
Journal ArticleDOI
Structural optimization using sensitivity analysis and a level-set method
TL;DR: A new numerical method based on a combination of the classical shape derivative and of the level-set method for front propagation, which can easily handle topology changes and is strongly dependent on the initial guess.
Journal ArticleDOI
On the Design of Compliant Mechanisms Using Topology Optimization
TL;DR: In this paper, the authors present a method for optimal design of compliant mechanism topologies based on continuum-type topology optimization techniques and find the optimal mechanism topology within a given design domain and a given position and direction of input and output forces.