Results 21 to 30 of about 156,265 (340)

Multi-objective optimization of a type of ellipse-parabola shaped superelastic flexure hinge [PDF]

open access: yesMechanical Sciences, 2016
Flexure hinges made of superelastic materials is a promising candidate to enhance the movability of compliant mechanisms. In this paper, we focus on the multi-objective optimization of a type of ellipse-parabola shaped superelastic flexure hinge.
Z. Du, M. Yang, W. Dong
doaj   +1 more source

Theoretical, numerical, and experimental investigation on the compliance and natural frequency of sinusoidal flexure hinges

open access: yesEngineering Reports, 2023
To design a flexure hinge with high precision and high natural frequency, the sinusoidal flexure hinge is proposed in this article. First, the formulae for the compliance and precision factors of the hinge were derived based on the Euler–Bernoulli beam ...
Qiliang Wang   +4 more
doaj   +1 more source

Compliant Cross-Axis Joints: A Tailoring Displacement Range Approach via Lattice Flexures and Machine Learning

open access: yesApplied Sciences, 2022
Compliant joints are flexible elements that allow displacement due to the elastic deformations they experience under the action of external loading. The flexible parts responsible for these displacements are known as flexure hinges.
Christian Cáceres-C.   +2 more
doaj   +1 more source

Design and assessment of a micro-nano positioning hexapod platform with flexure hinges for large aperture telescopes.

open access: yesOptics Express, 2022
In order to compensate the optical system bias, which is caused by the change of elevation angle and thermal gradient during the optical alignment of the telescope, a novel high stiffness micro-nano positioning hexapod platform with flexure hinges is ...
Xuewen Wang   +5 more
semanticscholar   +1 more source

New empirical stiffness equations for corner-filleted flexure hinges [PDF]

open access: yesMechanical Sciences, 2013
This paper investigates the existing stiffness equations for corner-filleted flexure hinges. Three empirical stiffness equations for corner-filleted flexure hinges (each fillet radius, r, equals to 0.1 l; l, the length of a corner-filleted flexure hinge)
Q. Meng, Y. Li, J. Xu
doaj   +1 more source

Insights into Bending Stiffness Modeling of Elementary Flexure Hinges

open access: yesApplied Sciences, 2023
Flexure hinges are widely used in mechanical devices, especially for micro- or even nano-scale applications, where conventional joints based on conjugate surfaces prove unsuitable.
Simir Moschini, Matteo Palpacelli
doaj   +1 more source

Sliding-mode control of a flexure based mechanism using piezoelectric actuators [PDF]

open access: yes, 2012
The position control of designed 3 PRR flexure based mechanism is examined in this paper. The aims of the work are to eliminate the parasitic motions of the stage, misalignments of the actuators, errors of manufacturing and hysteresis of the system by ...
Acer, Merve   +2 more
core   +3 more sources

detasFLEX – A computational design tool for the analysis of various notch flexure hinges based on non-linear modeling [PDF]

open access: yesMechanical Sciences, 2018
Notch flexure hinges are commonly used in compliant mechanisms for precision engineering applications and yet important rotational properties of a hinge like the bending stiffness, maximum angular deflection and rotational precision are difficult to ...
S. Henning, S. Linß, L. Zentner
doaj   +1 more source

A flexure-based kinematically decoupled micropositioning stage with a centimeter range dedicated to micro/nano manufacturing [PDF]

open access: yes, 2015
Precision positioning stages with large strokes and high positioning accuracy are attractive for high-performance micro/nano manufacturing. This paper presents the dynamic design and characteristic investigation of a novel XY micropositioning stage ...
Liang, Cunman   +4 more
core   +1 more source

Analysis and design of symmetric notch flexure hinges

open access: yesAdvances in Mechanical Engineering, 2017
This article presents the analytic models of four types of flexure hinges (elliptic, circular, parabolic, and hyperbolic flexure hinges). The analytic models are developed based on the theory of elasticity and infinitesimal method.
Ning Xu, Ming Dai, Xiaoqin Zhou
doaj   +1 more source

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