Study on a Fast Tool Servo (FTS) Driven by Piezoelectric Ceramic

2014 ◽  
Vol 635-637 ◽  
pp. 1335-1340 ◽  
Author(s):  
Ke Tian Li ◽  
Xin Chen ◽  
Xin Du Chen ◽  
Qiang Liu ◽  
Huan Wei Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Pressure Sensor ◽  
Piezoelectric Ceramic ◽  
Laser Interferometer ◽  
Driving Voltage ◽  
Fast Tool Servo ◽  
Element Analysis ◽  
Flexible Hinge ◽  
Stiffness Model

It is designed a Fast Tool Servo (FTS) device which based on piezoelectric ceramic and jointed by flexible hinge. The flexible hinge has been analyzed and optimized both by the theoretical calculation and finite element analysis; and it has been physically manufactured and tested by means of pressure sensor and laser interferometer. The stiffness model was established. The driving voltage and displacement relationship has been revealed. The results indicate that this FTS system can reach a travel range for 60μm,the frequency response precedes 150Hz within 39μm travel range.

Experiment Study of the Fast Tool Servo (FTS) by Laser Interferometer

2014 ◽  
Vol 625 ◽  
pp. 178-181 ◽  
Author(s):  
Rong Li Zhao ◽  
Xin Chen ◽  
Ke Tian Li ◽  
Xin Du Chen ◽  
Qiang Liu
Keyword(s):  
Piezoelectric Ceramic ◽  
Laser Interferometer ◽  
Driving Voltage ◽  
Fast Tool Servo ◽  
Experiment Study ◽  
Flexible Hinge ◽  
Output Displacement ◽  
Structure Simulation ◽  
Nature Frequency ◽  
Voltage Frequency

This paper introduced a kind of fast tool servo (FTS). Base on in the frame rack, flexible hinge, piezoelectric ceramic driver, tool base, diamond tools and so on. Laser interferometer is used for displacement measuring of the fast tool servo. The structure simulation was done to the FTS and the nature frequency was obtained. The output displacement of FTS was measured by Laser interferometer. Four kinds of different sin wave sign were given and the frequency of driving voltage ranged from 10Hz to 400 Hz. The relation of the displacement and the driving voltage frequency and the relation of displacement and the driving voltage had been established by experiment.

The Analyse on Stiffness Model of 3-PPSR Flexible Parallel Robot

2014 ◽  
Vol 716-717 ◽  
pp. 1643-1647
Author(s):  
Yu Liang Luan ◽  
Wei Bin Rong ◽  
Li Ning Sun
Keyword(s):  
Finite Element ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Parallel Robot ◽  
Force Balance ◽  
Element Analysis ◽  
Flexible Hinge ◽  
Stiffness Model ◽  
The Finite Element Analysis ◽  
The Mathematical Model

In order to achieve greater workspace motion, it’s designed a high aspect ratio 3-PPSR flexible parallel robot, driven by a piezoelectric motor, connected by flexible hinges, which has the advantages of simple structure, non singular, seamless, high motion precision. Because of the stiffness of the system directly affecting the motion accuracy, load bearing performance, according to the characteristics of high aspect ratio flexible hinge, It’s established the mathematical model of flexible hinge through finite element method. Using method of integral stiffness, conbined coordination equation with force balance equation, the flexible stiffness model of system is obtained. Finally, through using Ansys, it’s confirmed the validity of the theoretical model by comparing of the theoretical stiffness model results with the finite element analysis of the model results, to provide a reliable guarantee for optimization and analysis of kinematics and dynamics of flexible parallel robot.

Sensitivity characterization of pressure sensor using ionic liquid by finite element analysis

2017 ◽  
Vol 2017.8 (0) ◽  
pp. PN-98
Author(s):  
Yusuke TSUJI ◽  
Yu NAKANO ◽  
Yoshikazu HIRAI ◽  
Ken-ichiro KAMEI ◽  
Toshiyuki TSUCHIYA ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Ionic Liquid ◽  
Pressure Sensor ◽  
Element Analysis

Study on the Fast Tool Servo (FTS) with the Replaceable Flexible Hinge

2014 ◽  
Vol 625 ◽  
pp. 398-401 ◽  
Author(s):  
Ke Tian Li ◽  
Xin Chen ◽  
Xin Du Chen ◽  
Qiang Liu ◽  
Huan Wei Zhou
Keyword(s):  
Finite Element ◽  
Piezoelectric Ceramic ◽  
The Other ◽  
Fast Tool Servo ◽  
Flexible Hinge ◽  
Diamond Tools ◽  
Front End ◽  
Finite Element Technology

It is a FTS with flexible hinge that can be replaceable. It includes flexible hinges, a movable block, piezoelectric ceramic driver and framework. The flexible hinge is installed on inner side of the frame, and the other side is connected with the movable block. The piezoelectric ceramic driver is installed in movable block, and its other end is installed on the end beam of the frame. There is a tool base in the front end of the movable block on which the diamond tools can be fixed. Under the support of the flexible hinges, the tool can move back and front driven be piezoelectric ceramic driver. Through the simulation analyses with finite element technology and experiment, it is certify that the design of FTS is successful and practical to further study.

The Stiffness Model of Leaf-Type Isosceles-Trapezoidal Flexural Pivots

2008 ◽  
Vol 130 (8) ◽  
Author(s):  
Pei Xu ◽  
Yu Jingjun ◽  
Zong Guanghua ◽  
Bi Shusheng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rigid Body ◽  
Compliant Mechanisms ◽  
Nonlinear Finite Element Analysis ◽  
Nonlinear Finite Element ◽  
Leaf Segment ◽  
Element Analysis ◽  
Leaf Type ◽  
Stiffness Model

A leaf-type isosceles-trapezoidal flexural pivot can be of great practical use for designing compliant mechanisms. The analysis of load-deflection behavior for such a pivot is essential to the study of the mechanisms that are comprised of them. Based on the analysis of a single special loaded leaf segment, a pseudo-rigid-body four-bar model is proposed. The four-bar model is further simplified to a pin-joint model for some simple applications. The accuracy of both models is demonstrated by comparing results to those of nonlinear finite element analysis. At last, the two models are applied to analyze the cartwheel hinge as an example.

Sign in / Sign up

Export Citation Format

Share Document