Journal ArticleDOI
Topology optimization of bistable mechanisms with maximized differences between switching forces in forward and backward direction
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TLDR
This study designs robust bistable mechanisms with maximized differences between the reaction forces at the desired critical points using topology optimization using additive hyperelasticity technique to ensure the convergence of the nonlinear finite element problems.About:
This article is published in Mechanism and Machine Theory.The article was published on 2019-09-01. It has received 24 citations till now. The article focuses on the topics: Topology optimization & Bistability.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.
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Topology optimization of a cable-driven soft robotic gripper
TL;DR: This work develops a cable-driven soft robotic gripper with multi-input and multi-output using topology optimization considering geometric nonlinearity, which not only performs adaptive grasping but also enables finer manipulations such as rotating or panning the target.
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A novel flexural lamina emergent spatial joint
TL;DR: In this article, a flexural Lamina Emergent Spatial (LES) joint is proposed to decompose large spatial rotations by employing the combination of a Out-of-plane Rotational Part (ORP) and a In-plane Rotation Part (IRP).
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Analytical Study of the Snap-Through and Bistability of Beams With Arbitrarily Initial Shape
TL;DR: In this paper, the authors derived the snap-through solution and the governing snapping force equations for an arbitrarily pre-shaped beam deflected under a mid-length lateral point force, and the exact solution was obtained based on the classical theory of elastic beams as a superposition of the initial shape and the modes of buckling.
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A multi-response optimal design of bistable compliant mechanism using efficient approach of desirability, fuzzy logic, ANFIS and LAPO algorithm
TL;DR: A new efficient hybrid methodology for solving the multi-objective optimization design for compliant mechanisms is presented, and the results demonstrate that the proposed method is more efficient than Taguchi-based fuzzy logic.
References
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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.
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On projection methods, convergence and robust formulations in topology optimization
TL;DR: It is shown that simple projection methods do not ensure localMesh convergence and a modified robust topology optimization formulation based on erosion, intermediate and dilation projections is proposed that ensures both global and local mesh-convergence.
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A curved-beam bistable mechanism
TL;DR: In this paper, a monolithic mechanically bistable mechanism that does not rely on residual stress for its bistability is presented, based on two curved centrally-clamped parallel beams, hereafter referred to as double curved beams.
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Broadband tristable energy harvester: Modeling and experiment verification
TL;DR: In this article, a broadband piezoelectric based vibration energy harvester with a triple-well potential induced by a magnetic field was proposed and the parameters of the linear energy harvesting system without magnetic force actuation were obtained through intelligent optimization of the minimum error between numerical simulations and experimental responses.
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Minimum length scale in topology optimization by geometric constraints
TL;DR: A density-based topology optimization approach is proposed to design structures with strict minimum length scale based on using a filtering-threshold topology optimized scheme and computationally cheap geometric constraints.