Journal ArticleDOI
Design of Planar Large-Deflection Compliant Mechanisms With Decoupled Multi-Input-Output Using Topology Optimization
Reads0
Chats0
TLDR
This paper presents a method for topology optimization of large-deflection compliant mechanisms with multiple inputs and outputs by considering the coupling issue and proposes a scheme to obtain a completely decoupled mechanism.Abstract:
This paper presents a method for topology optimization of large-deflection compliant mechanisms with multiple inputs and outputs by considering the coupling issue. First, the objectives of the design problem are posed by modeling the output loads using several springs to enable control of the input–output behavior. Second, a scheme is proposed to obtain a completely decoupled mechanism. Both input coupling and output coupling are considered. Third, with the implementation of an energy interpolation scheme to stabilize the numerical simulations, the geometrical nonlinearity is considered to appropriately capture the large displacements of compliant mechanisms. Finally, several numerical examples are presented to demonstrate the validity of the proposed method. Comparison studies with the obtained results without considering the coupling issues are also presented.read more
Citations
More filters
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 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.
Journal ArticleDOI
Nonlinear topology optimization of parallel-grasping microgripper
TL;DR: A piezo-driven microgripper which can realize parallel grasping in a large displacement range (more than 140 μ m) and the comparison of the convergence results shows that this method can find a better structure of microGripper and save computation time simultaneously.
Journal ArticleDOI
Topology optimization of compliant mechanism considering actual output displacement using adaptive output spring stiffness
TL;DR: This paper presents a new method for topology optimization of compliant mechanisms considering actual output displacement by maximizing the output displacement with artificial springs meanwhile optimizing theactual output displacement without artificial springs to the prescribed value.
Journal ArticleDOI
Topological Design of a Lightweight Sandwich Aircraft Spoiler.
TL;DR: In this study, a lightweight sandwich aircraft spoiler with a high stiffness-to-weight ratio was designed by the synthetic use of topology optimization, lattice structure techniques, and high-performance materials, i.e., titanium alloy and aluminum alloy.
References
More filters
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
Morphology-based black and white filters for topology optimization
TL;DR: In this article, the physical stiffness of an element is based on a function of the design variables of the neighboring elements, and a new class of morphology-based restriction schemes that work as density filters is introduced.
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.
Journal ArticleDOI
Topology optimization of non-linear elastic structures and compliant mechanisms
T.E. Bruns,Daniel A. Tortorelli +1 more
TL;DR: In this paper, the material density field is filtered to enforce a length scale on the field variation and is penalized to remove less effective intermediate densities to resolve the non-existent solution to the solid void topology problem.
Journal ArticleDOI
A critical review of established methods of structural topology optimization
TL;DR: In this paper, the authors evaluate and compare established numerical methods of structural topology optimization that have reached the stage of application in industrial software, and they hope that their text will spark off a fruitful and constructive debate on this important topic.