Results 271 to 280 of about 9,419 (308)

Reconfigurable Soft Flexure Hinges via Pinched Tubes

2020 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2020
Tuning the stiffness of soft robots is essential in order to extend usability and control the maneuverability of soft robots. In this paper, we propose a novel mechanism that can reconfigure the stiffness of tubular structures, using pinching to induce highly directional changes in stiffness.
Yuhao Jiang, Mohammad Sharifzadeh, Daniel M. Aukes   +2 more
openaire   +1 more source

Lumped-Parameter Inertia Model for Flexure Hinges

Mechanics Based Design of Structures and Machines, 2004
Abstract The article describes the analysis to derive the lumped-parameter inertia properties for variable cross-section flexure hinges for potential use in modeling, designing, and optimizing of these components in the resonant/dynamic range. Inertia fractions corresponding to one of the flexure's 6 degrees of freedom are formulated for single-, two-,
Nicolae Lobontiu, Ephrahim Garcia
openaire   +1 more source

Space focusing mirror assembly with flexure hinges

SPIE Proceedings, 2014
Focusing mirror assembly (FMA) is an important component of large space telescope. It can compensate the telescope's defocus caused by environmental factors. Telescope launching vibration and shock, as well as the structure stress of kinematic movement have great impact on focusing mirror assembly. To solve the problems of defocus result from vibration,
Quanfeng Guo, Wei Li, Ji-hong Dong, Yanchun Li, Kejun Wang   +4 more
openaire   +1 more source

Notch flexure hinges: An effective theory

Review of Scientific Instruments, 2002
This article presents effective tractable equations for rotational compliance (stiffness) of a simple monolithic flexure hinge with circular (radius R and crosspiece thickness t), elliptical [at semiaxis ax, ay, elliptical ratio ε (=ax/ay)] and other cross sections.
openaire   +1 more source

Piezomotors using flexure hinged displacement amplifiers

IEE Colloquium on `Innovative Actuators for Mechatronic Systems', 1995
The design and construction of two different piezomotors developed by the authors is briefly described. Both employ flexure hinged mechanical displacement amplifiers to increase the output movement of stack-type piezoelectric actuators to enable them to be applied to rotation generating mechanisms. The first example is a harmonic piezomotor.
openaire   +1 more source

Displacement loss of flexure-hinged amplifying mechanism

The Proceedings of the Multiconference on "Computational Engineering in Systems Applications", 2006
The amplifying factor is utilized to study displacement loss of flexure-hinged amplifying mechanism in the paper. Firstly, the amplifying factors of three typical amplifying mechanisms are theoretically calculated. Then, the actual amplifying factor of lever-type amplifying mechanism, which is widely used, is detailedly simulated by using parametric ...
Jianying Shen, Qinghua Zhou
openaire   +1 more source

Micropositioning System with Flexure Hinges for Microfactories

Key Engineering Materials, 2013
In this paper it is presented a ductile system for micropositioning in a two-dimensional coordinate system. Accuracy positioning results from usage of asymmetric flexure hinges. It also it is presented the modeling of the asymmetric flexure hinges, finite element analysis, and experimental work.
Daniel Lates, Simona Noveanu, Vencel Iosif Csibi   +2 more
openaire   +1 more source

Optimized High-Precision Flexural Hinge Shapes

2006
Results of a strength-based optimisation of flexural hinge shapes are given. Both pre-defined and freeform parametric shapes are considered. By employing non-linear parametric optimisation algorithms, shapes that are best suited for the desired applications are determined.
Zelenika, Saša, Munteanu, Mircea Gh., Henein, Simon   +2 more
openaire   +2 more sources

Flexure Hinge Based Fully Compliant Prosthetic Finger

2017
A prosthetic hand is usually made by rigid body mechanism with ropes and pulleys. Such a hand is not “soft” to patients and nor to objects to be manipulated by the hand. In this paper, the concept of compliant mechanism is applied to a prosthetic hand.
S. Q. Liu, H. B. Zhang, R. X. Yin, Ang Chen, W. J. Zhang   +4 more
openaire   +1 more source

Flexure Hinge Grating Suspension

Applied Optics, 1974
W H, Fletcher, J S, Rayside, W J, Wiley
openaire   +2 more sources