Design and analysis of a dual-mode driven parallel XY micromanipulator for micro/nanomanipulations

2012 ◽  
Vol 226 (12) ◽  
pp. 3043-3057 ◽  
Author(s):  
Hui Tang ◽  
Yangmin Li ◽  
Jiming Huang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Properties ◽  
Dynamics Modeling ◽  
Lagrange Equations ◽  
Element Analysis ◽  
Modeling And Analysis ◽  
The Matrix ◽  
High Bandwidth ◽  
Novel Design

This article presents a novel design of a flexure-based, piezoelectric actuated, completely decoupled, high-bandwidth, highresolution, and large stroke parallel XY micromanipulator with two amplification levers. The monolithic mechanism is featured with dual working modes, which meets different kinds of requirements in terms of high resolution and large workspace in micro/nano fields. In order to reduce the displacement loss, the modeling and analysis of bending motion of the levers are conducted; thereafter, compliance and stiffness modeling by employing the matrix method are established. Furthermore, the dynamics modeling and analysis via Lagrange equations are performed to improve the dynamic properties of the mechanism. The simulation results of finite element analysis indicate that the cross-coupling between the two axes is kept to 1.2%; meanwhile, the natural frequency of the mechanism is about 700 Hz, and the amplifier ratio is approximately 2.32. Both theoretical analysis and finite element analysis results well validate the performance of the proposed mechanism.

scholarly journals Research on a 3-DOF Motion Device Based on the Flexible Mechanism Driven by the Piezoelectric Actuators

Micromachines ◽  
2018 ◽  
Vol 9 (11) ◽  
pp. 578 ◽  
Author(s):  
Bingrui Lv ◽  
Guilian Wang ◽  
Bin Li ◽  
Haibo Zhou ◽  
Yahui Hu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Machining Process ◽  
Element Analysis ◽  
3D Motion ◽  
Compliance Modeling ◽  
The Matrix ◽  
Static Performance ◽  
Flexible Mechanism

This paper describes the innovative design of a three-dimensional (3D) motion device based on a flexible mechanism, which is used primarily to produce accurate and fast micro-displacement. For example, the rapid contact and separation of the tool and the workpiece are realized by the operation of the 3D motion device in the machining process. This paper mainly concerns the device performance. A theoretical model for the static performance of the device was established using the matrix-based compliance modeling (MCM) method, and the static characteristics of the device were numerically simulated by finite element analysis (FEA). The Lagrangian principle and the finite element analysis method for device dynamics are used for prediction to obtain the natural frequency of the device. Under no-load conditions, the dynamic response performance and linear motion performance of the three directions were tested and analyzed with different input signals, and three sets of vibration trajectories were obtained. Finally, the scratching experiment was carried out. The detection of the workpiece reveals a pronounced periodic texture on the surface, which verifies that the vibration device can generate an ideal 3D vibration trajectory.

Research on the Application of Periodic Truss-Core Structures to Structural Design of Machine Tool

2011 ◽  
Vol 194-196 ◽  
pp. 1977-1981
Author(s):  
Dong Qiang Gao ◽  
Zhi Yun Mao ◽  
Zhong Yan Li ◽  
Fei Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Machine Tool ◽  
Dynamic Properties ◽  
Response Analysis ◽  
Optimized Design ◽  
Element Analysis ◽  
Truss Core ◽  
The Finite Element Analysis ◽  
Harmonic Response Analysis

The modal analysis and harmonic response analysis of the machine tool table with periodic truss-core structures are analyzed and calculated by finite element analysis software-ANSYS Workbench, then we get the finite element analysis results. After comparing the results with finite element analysis results of the original machine tool table, we come to the conclusion that the dynamic properties of the machine tool table with periodic truss-core structures are better than the original machine tool table’s. It makes a base for optimized design and remanufacturing.

scholarly journals Vibration and Modal Analysis of Low Earth Orbit Satellite

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Asif Israr
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Integrity ◽  
Center Of Mass ◽  
Low Earth Orbit ◽  
Element Analysis ◽  
Satellite Structure ◽  
Modeling And Analysis ◽  
Material Optimization ◽  
Theoretical Predictions

This paper presents design, modeling, and analysis of satellite model used for remote sensing. A detailed study is carried out for the design and modeling of the satellite structure focusing on the factors such as the selection of material, optimization of shape and geometry, and accommodation of different subsystems and payload. The center of mass is required to be kept within the range of (1-2) cm from its geometric center. Once the model is finalized it is required to be analyzed by the use ofAnsys, a tool for finite element analysis (FEA) under given loading and boundary conditions. Static, modal, and harmonic analyses inAnsysare performed at the time of ground testing and launching phase. The finite element analysis results are also validated and compared with the theoretical predictions. These analyses are quite helpful and suggest that the satellite structure does not fail and retains its structural integrity during launch environment.

The Study of ANSYS-Based Finite Element Calculation Model for Push-Back Rack

2013 ◽  
Vol 712-715 ◽  
pp. 1111-1115
Author(s):  
Bei Li ◽  
Zhuan Wang ◽  
Yi Li Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Calculation Model ◽  
Finite Element Calculation ◽  
Element Calculation ◽  
Element Analysis ◽  
Modeling And Analysis ◽  
The Finite Element Analysis ◽  
Load Characteristics ◽  
Calculating Model

A kind of calculating model was proposed according to the structure and load characteristics of push-back rack. On the basis of study on modeling and analysis technology using ANSYS, the finite element analysis of push-back rack was realized, which can provide reference to the design and calculation of push-back rack.

Finite Element Analysis of Pressure Device in Die-Cutting Based on the ANSYS Workbench

2010 ◽  
Vol 156-157 ◽  
pp. 1195-1198
Author(s):  
Shao Hua Shen ◽  
Xiang Dong Shi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Properties ◽  
Structural Parameters ◽  
Structure Type ◽  
Scientific Basis ◽  
Element Analysis ◽  
Calculated Stress ◽  
Stress And Strain Distribution ◽  
Ansys Workbench

The important component--- pressure device in die-cutting is analyzed by Solidworks and ANSYS Workbench. With analyzing the structure of the pressure device, some simplification is made, and the tool of draft mirror and feature mirror is often used in building the model in the Solidworks. Loads of the pressure device in different load conditions are analyzed and calculated. Stress and displacement of the pressure device are plotted after static finite element analysis. Its stress is analyzed by ANSYS. Stress and strain distribution is found. Which can provides mechanical simulation for the design of the pressure device, and provides scientific basis for selecting structure type, deciding structural parameters, increasing static and dynamic properties, reducing manufacture cost of the integral body of the pressure device.

Automatic Analysis on Parametric of Truck Crane Boom Based on APDL and VB

2013 ◽  
Vol 288 ◽  
pp. 228-232
Author(s):  
Ye Fei ◽  
Yan Jun Liu ◽  
Yuan Yuan Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Automatic Analysis ◽  
Structure Parameter ◽  
Element Analysis ◽  
Automatic Modeling ◽  
Modeling And Analysis ◽  
Ansys Apdl ◽  
Basic Parameters ◽  
Analysis System

In this paper, by defining and associating the boom structure parameter characteristic of truck crane, we build a parameterized automatic analysis system of truck crane boom, based on the VB platform with the ANSYS APDL language. In the system, the basic parameters of the crane structural finite element analysis can be obtained by human-computer exchange, achieving the finite element automatic modeling and analysis of boom structure under the driving of the parameters. Engineering examples show that the system is reliable and accurate results.

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