Journal ArticleDOI
Topology optimization of hinge-free compliant mechanisms with multiple outputs using level set method
TLDR
In this paper, a method for topology optimization of hinge-free compliant mechanisms with multiple outputs using level set method is presented, where two types of mean compliances are introduced and built in the proposed multi-objective function.Abstract:
A method for topology optimization of hinge-free compliant mechanisms with multiple outputs using level set method is presented in this paper. The focus of this paper is on how to prevent generating the flexible hinges during the process of topology optimization of compliant mechanisms. In the proposed method, two types of mean compliances are introduced and built in the proposed multi-objective function for topology optimization of hinge-free compliant mechanisms with multiple outputs, therefore, the spring model widely used for topology optimization of compliant mechanisms is no longer needed. Some numerical examples are presented 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
Topology optimization of compliant mechanisms with desired structural stiffness
TL;DR: In this paper, a bi-directional evolutionary structural optimization (BESO) method was developed for the topological design of compliant mechanisms, where the design problem was reformulated as maximizing the flexibility of the compliant mechanism subject to the mean compliance and volume constraints.
Journal ArticleDOI
Design of single-axis flexure hinges using continuum topology optimization method
TL;DR: 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.
Journal ArticleDOI
Design and static testing of a compact distributed-compliance gripper based on flexure motion
Guangbo Hao,Ronan Brendan Hand +1 more
TL;DR: In this article, a compliant gripper is obtained from a 2-PRRP (P: prismatic; R: revolute) kinematic mechanism, and uses distributed-compliance joints for avoiding stress-concentration and enabling large range of motion.
Journal ArticleDOI
A multi-objective method of hinge-free compliant mechanism optimization
TL;DR: In this article, a new multi-objective formulation for topology synthesis of hinge-free compliant mechanisms is presented based on the SIMP method and a weighted sum formed objective function is developed by taking into consideration the input and output mean compliances.
References
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Journal ArticleDOI
Hinge-free topology optimization with embedded translation-invariant differentiable wavelet shrinkage
TL;DR: The objective of this work is to present a new method to find hinge-free designs using multiscale wavelet-based topology optimization formulation using a translation-invariant wavelet shrinkage method.
Journal ArticleDOI
A topology-preserving level set method for shape optimization
Oleg Alexandrov,Fadil Santosa +1 more
TL;DR: In this paper, a logarithmic barrier penalty is proposed to enforce geometrical and topological constraints, which leads to an approximate solution to shape design problems, where the boundary of the unknown geometry is represented as the zero-level set of a function.
Journal ArticleDOI
Compliant Mechanism Optimization: Analysis and Design with Intrinsic Characteristic Stiffness
Michael Yu Wang,Shikui Chen +1 more
TL;DR: In this paper, the design formulation of compliant mechanisms is posed as a topology optimization problem, where the stiffness matrix of a single-input, single-output (SISO) mechanism is represented by the stiffness matrices of its structure with respect to the input-output ports.
Proceedings ArticleDOI
Designing Distributed Compliant Mechanisms With Characteristic Stiffness
Shikui Chen,Michael Yu Wang +1 more
TL;DR: A novel method is proposed to address the cutting-edge problem of topology optimization of distributed compliant mechanisms, which requires the design to possess both large output displacements and evenly distributed compliance simultaneously.
Proceedings ArticleDOI
Topology Optimization of Compliant Mechanisms Using Hybrid Discretization Model
TL;DR: In this article, a hybrid discretization model for topology optimization of compliant mechanisms is introduced, which allows any two contiguous design cells to be connected by four triangular analysis cells whether they are in the horizontal, vertical, or diagonal direction.