Results 281 to 290 of about 173,287 (355)

A generalized model for conic flexure hinges

Review of Scientific Instruments, 2009
Flexure hinges have been used to produce frictionless and backlashless transmission in a variety of precision instruments. Many kinds of flexure profile were proposed during the past decade. The present work brings elliptical arc, parabolic, and hyperbolic profiles together by proposing a generalized conic flexure hinge model.
Guimin, Chen, Xiaoyuan, Liu, Hongwei, Gao, Jianyuan, Jia   +3 more
openaire   +2 more sources

A low frequency operation high speed stick-slip piezoelectric actuator achieved by using a L-shape flexure hinge

Smart materials and structures (Print), 2020
Motion speed is an important parameter of stick-slip piezoelectric actuators. However, most of the existing stick-slip piezoelectric actuators achieve a high motion speed by operating under a quite high driving frequency.
Hu Huang, Zhi Xu, Jiru Wang, Jingshi Dong   +3 more
semanticscholar   +1 more source

A Novel Fiber Bragg Grating Vibration Sensor Based on Orthogonal Flexure Hinge Structure

IEEE Sensors Journal, 2020
A novel two-dimensional (2-D) fiber Bragg grating (FBG) vibration sensor based on an orthogonal flexure hinge structure has been proposed in this paper.
Han Song, Qidong Wang, Mingyao Liu, Qihui Cai   +3 more
semanticscholar   +1 more source

Elliptical-Arc-Fillet Flexure Hinges: Toward a Generalized Model for Commonly Used Flexure Hinges

Journal of Mechanical Design, 2011
Flexure hinges have been used to produce frictionless and backlashless transmissions in a variety of precision mechanisms. Although there are many types of flexure hinges available, designers often chose a single type of flexure hinge (e.g., circular flexure hinges) without considering others in the design of flexure-based mechanisms.
Guimin Chen, Xiaoyuan Liu, Yunlei Du
openaire   +1 more source

A novel stick-slip piezoelectric rotary actuator designed by employing a centrosymmetric flexure hinge mechanism

Smart materials and structures (Print), 2020
Although the stick-slip piezoelectric linear actuators have been widely investigated, the design of stick-slip piezoelectric rotary actuators is rarely reported and the corresponding output performances could be further improved.
Yirui Wang, Zhi Xu, Hu Huang
semanticscholar   +1 more source

Optimized Flexural Hinges for Compliant Micromechanisms

Analog Integrated Circuits and Signal Processing, 2005
In this work a procedure for the optimal design of flexural hinges to be microfabricated by a lithographic process is proposed. The structural optimization problem is approached by coupling a parametric finite element model to an optimization algorithm.
F. De Bona, M. Gh Munteanu
openaire   +1 more source

Tractable model for concave flexure hinges

Review of Scientific Instruments, 2011
In this article we prove that approximate solutions previously developed by us, with inverse conformal mapping, for concave flexure notch hinges rotational compliance in correct applications are accurate enough in comparison with the more complicated “precision” solutions for the conic profiles based on the integration of differential equations, finite
openaire   +2 more sources

Design, modeling, and performance of a bidirectional stick-slip piezoelectric actuator with coupled asymmetrical flexure hinge mechanisms

, 2020
A stick-slip piezoelectric actuator with bidirectional motion is proposed and measured, which uses coupled asymmetrical flexure hinge mechanisms and symmetrical indenter to generate controllable tangential displacement.
Xiaohui Lu, Qiang Gao, Qi Gao, Yang Yu, Xiaosong Zhang, Guangda Qiao, Hongwei Zhao, Tinghai Cheng   +7 more
semanticscholar   +1 more source

Topology Optimization of Flexure Hinges

2018
This chapter is devoted to developing a systematic method for the topology optimization of flexure hinges. The main research work includes: (1) Developing basic topology optimization models for translational and revolute flexure hinges. The objective function for the topology optimization of flexure hinges is to maximize the compliance in the ...
Xianmin Zhang, Benliang Zhu
openaire   +1 more source

Research on zero-stiffness flexure hinge (ZSFH) based on spring four-bar linkage(4BSL)

, 2020
In order to overcome the spring back behavior of the conventional flexure hinge, the positive and negative stiffness matching method is used. The spring four-bar linkage(4BSL) is designed as a negative stiffness rotation mechanism, while the inner and ...
Tian Liu, S. Bi, Yanbin Yao, Zhaohui Dong, Qizi Yang, Lang Liu   +5 more
semanticscholar   +1 more source