Design and Performance Analysis of Double C-Type Flexure Hinges

2017 ◽  
Vol 9 (4) ◽  
Author(s):  
Lifang Qiu ◽  
Gang Huang ◽  
Siqi Yin
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Simulation Analysis ◽  
Flexure Hinge ◽  
Equivalent Stiffness ◽  
Bending Performance ◽  
Flexure Hinges ◽  
Element Simulation ◽  
And Performance ◽  
Better Than

This paper proposes a series of double C-type flexure hinges for lamina emergent mechanisms (LEMs), designs the structure, and deduces the formula of the equivalent stiffness of the double C-type flexure hinge. Theoretical calculation and finite element simulation analyses of the design examples are used to verify the correctness of the equivalent stiffness calculation formula. In order to improve the bending performance of the flexure hinges, we propose a method to remove some materials of the semicircle of the flexure hinges according to certain rules. Then, the structure of the double C-type flexure hinge is further improved. Finally, the performance of the improved and unimproved double C-type flexure hinges is compared through the finite element simulation analysis, and the results show that the bending performance of the improved double C-type flexure hinge is better than the unimproved double C-type flexure hinge, while the antitensile properties undergo no significant decline.

Corner-Filleted Flexure Hinges

2000 ◽  
Vol 123 (3) ◽  
pp. 346-352 ◽  
Author(s):  
Nicolae Lobontiu ◽  
Jeffrey S. N. Paine ◽  
Ephrahim Garcia ◽  
Michael Goldfarb
Keyword(s):  
Finite Element ◽  
Closed Form ◽  
Finite Element Simulation ◽  
Analytical Approach ◽  
Flexure Hinge ◽  
Closed Form Solutions ◽  
Flexure Hinges ◽  
Element Simulation ◽  
Model Predictions ◽  
The Right

The paper presents an analytical approach to corner-filleted flexure hinges. Closed- form solutions are derived for the in-plane compliance factors. It is demonstrated that the corner-filleted flexure hinge spans a domain delimited by the simple beam and the right circular flexure hinge. A comparison that is made with the right circular flexure hinges indicates that the corner-filleted flexures are more bending-compliant and induce lower stresses but are less precise in rotation. The finite element simulation and experimental results confirmed the model predictions.

3D Dynamic Finite Element Simulation Analysis of Single Abrasive Grain during Profile Grinding with Axial Feed

2013 ◽  
Vol 680 ◽  
pp. 410-416 ◽  
Author(s):  
Jun Ming Wang ◽  
Fu Yuan Tong ◽  
Xiao Xue Li
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Simulation Analysis ◽  
Tangential Force ◽  
Profile Grinding ◽  
Software Analysis ◽  
Dynamic Finite Element ◽  
Abrasive Grain ◽  
Element Simulation ◽  
Force Increase

By simplifying the geometric shape of abrasive grain in a cone-shape, the authors conduct the 3D dynamic finite element simulation on profile grinding with axial feed by single abrasive grain using deform-3D software. Analysis is made on the influence upon the grinding forces in case of the same grinding speed, the same grinding depth and the same friction factor between wheel and workpiece at different axial feed. The results show that the normal force and the tangential force increase with the increase of axial feed, but the axial force decreases with the axial feed.

FINITE ELEMENT SIMULATION AND PERFORMANCE ANALYSIS OF A NOVEL BIOABSORBABLE STENT FOR THE TREATMENT OF AORTIC COARCTATION

2021 ◽  
Author(s):  
Flávio Santos ◽  
Bruno Agostinho Hernandez ◽  
Mateus Piccin Duarte de Souza ◽  
Aron Andrade ◽  
EDSON CAPELLO SOUSA
Keyword(s):  
Finite Element ◽  
Performance Analysis ◽  
Finite Element Simulation ◽  
Aortic Coarctation ◽  
Element Simulation ◽  
And Performance

scholarly journals Strenght analysis chassis of UM electric cars using finite element method

2018 ◽  
Vol 204 ◽  
pp. 07017 ◽  
Author(s):  
Mardji ◽  
Andoko ◽  
Dani Prasetiyo
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Simulation Analysis ◽  
Equivalent Stress ◽  
Safety Level ◽  
Electric Cars ◽  
Know How ◽  
Electric Car ◽  
Weight Support ◽  
Element Simulation

Chassis on the vehicle serves as the main weight support vehicle. Designing a precise chassis will give optimal results between the safety level and the size of the construction, so that finite element simulation analysis is required to know how strong the chassis sustains the load on it. The purpose of this research is to get the result of chassis simulation on UM electric car when getting the loading by using ANSYS 18.1 software. As for the step this study started from chassis modeling using Autodesk Inventor Professional 2018 software and finite element simulation using static structural feature in software ANSYS 18.1. From the simulation result obtained Equivalent Stress 59,983MPa, Equivalent Elastic Strain 33,25x10-5 mm / mm Total Deformation 2,43mm and safety factor 3,55.

Finite Element Simulation and Experimental Research on Micro-Milling Process of Titanium Alloy

2012 ◽  
Vol 522 ◽  
pp. 245-248 ◽  
Author(s):  
Hai Tao Liu ◽  
Ya Zhou Sun ◽  
De Bin Shan ◽  
Yan Quan Geng
Keyword(s):  
Finite Element ◽  
Titanium Alloy ◽  
Finite Element Simulation ◽  
Large Scale ◽  
Simulation Analysis ◽  
Cutting Speed ◽  
Micro Milling ◽  
Element Analysis ◽  
Element Simulation ◽  
Cutting Heat

There are lots of titanium alloy parts which have large-scale micro-structures in astronautic structure and medical implants, so the micro milling becomes one of the effective processing methods in getting the surface micro-structure. Because the titanium alloy has high caking property in processing, it needs a research on the cutting heat and force in order to get better machining precision and surface quality. According to the finite element theory in elastic and plasticity, the influence of cutting speed to the cutting heat and force is got by finite element simulation analysis to the titanium material TC4 in cutting process. It can get the simulation results of cutting heat and force in the micro milling processing by finite element analysis, and then compared, the basic influence which the cutting speed to the cutting heat and force is got. The correctness of the result is checked through cutting experiments.

Design and Characterization of a Soft Vacuum-Actuated Rotary Actuator

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Liancun Zhang ◽  
Qiang Huang ◽  
Wenkang Wang ◽  
Kangjian Cai
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Simulation Analysis ◽  
Experimental Testing ◽  
Large Change ◽  
Mechanical Analysis ◽  
Ring Structure ◽  
Rotary Actuator ◽  
Element Simulation ◽  
Highly Correlated

Abstract This study provides a type of soft vacuum-actuated rotary actuator. The structures in the actuator are based on different elastomeric structures that comprise a number of interacting elastic radial beams, elastic circumferential beams, and interconnected, deformable sector ring structure air chambers. When negative pressure is applied to the structure, the radial beams bend reversibly into serpentine shapes until adjacent circumferential beams contact each other. This bending results in a large change in the circumferential angle of the structure, but a smaller change in its radial width. Thus, the structure produces rotational motion in its circumferential direction. The design, fabrication, and mechanical analysis of the actuator are introduced, respectively. Moreover, finite element simulation analysis and experimental testing are carried out to study the corresponding relations between the air pressure, rotation angle, and force of the actuator. In addition, the stimulation results and the experimental results of the actuator are statistically analyzed by statistical product and service solutions (spss) statistical software. The test results of the experimental platform are highly correlated with the results of the finite element simulation.

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