CAD APPLICATIONS[MAE 577]

Mechanism Simulation using Autodesk Inventor 2011

ByJinmiao HuangSidhant SharmaAnagha Pradhan Date: 11/17/2010

Agenda Introduction

A word about Autodesk Intro to Autodesk Inventor Intro to Mechanism Simulation

Mechanism Simulations Live demo-1 : Slider Crank Live demo-2: Reciprocating Saw

Comparison with SolidWorks Features Comparison Current User Growth Market Share

ApplicationsReferences

Introduction

A word about Autodesk Intro to Autodesk Inventor Intro to Mechanism

Simulation

A Word About Autodesk, IncAn American multinational corporation Focuses on 2D and 3D CAD/CAE packagesFounded in 1982 by John Walker

ProductYear of

development

Developed by Applications

AutoCAD 1982 Autodesk, Inc Architecture, Engineering and Construction

Maya 1998 Alias/Wavefront

Media and Entertainment Division

Softimage

2000 Softimage Media and Entertainment Division

3ds MAX 2009 Autodesk, Inc Media and Entertainment Division

Autodesk Inventor

1999 Autodesk, Inc Manufacturing and Engineering

Intro to Autodesk Inventor3D mechanical solid modeling design softwareDeveloped by Autodesk, Inc. in 1999

Working Environments Part Modeling Assembly Design Sheet Metal Design Frame Generator (structural members, joints) Tube and Pipe Cable and Harness Dynamic Simulation Stress Analysis (ANSYS)

Capabilities

Compatibility with other

CAE Softwares

Parametric Optimization

Simulation

FEA

Mechanisms

Thermal

Fluid Flow

Electrical Routing

3D Modeling and Assembly

Tool and Mold Design

What can we do in Autodesk Inventor 2011?

Intro to Mechanism Simulation Input driving loads, friction characteristics, and dynamic

components

Run dynamic simulation tests to see how a product will work under real-world conditions

Optimize strength and weight, identify high-stress areas, identify and reducing unwanted vibrations, and size motors and actuators to reduce energy consumption

Inventor Features: Condition definitions (materials, load, etc) Point trace (path) Graphing Animated visualization/videos Custom report generation

Mechanism Simulations

Live demo-1 : Slider CrankLive demo-2: Reciprocating

Saw

Steps for Mechanism Simulation

1. Open the assembly file

2. Check all the mates and constraints

3. Switch to Dynamic simulation environment from Applications Tab(2009) or Environment(2011)

4. Calculate Standard joints (automatic) and Insert remaining joint types (example: for gear meshing)

5. Apply motion, force conditions, etc

6. Generate plots using Output Grapher

Live Demo1: ‘the’ Slider Crank Mechanism

http://www.youtube.com/watch?v=LhJCi1RUyPk

Results ComparisonC

M P

osi

tion

-X(i

nch

)

CM

Posi

tion

-X(i

nch

)

Time(sec)

Autodesk Inventor

SolidWorks MATLAB

As seen in the three figures, the solutions given by Inventor, SolidWorks, and MATLAB are very agreeable.

X-Position of the Piston

Results contd…

Autodesk Inventor

SolidWorks MATLAB

CM

Velo

city

-X(i

nch

/sec) As seen in the three figures, the solutions given by Inventor is slightly greater than the analytical solution.

Solidworks is more accurate.

X-Velocity of the Piston

Results contd…

Autodesk Inventor

SolidWorks MATLAB

CM

Acc

ele

rati

on

-X

(in

ch)

As seen in the three figures, the solutions given by Inventor is slightly greater than that given by SolidWorks and MATLAB

Solidworks is more accurate.

X-Acceleration of the Piston

Live Demo2:Reciprocating Saw

http://www.youtube.com/watch?v=V4mE4mR_2nY

Comparison with SolidWorks

Features ComparisonCurrent User Growth Market Share

Features Comparison

Solidworks is more intuitive as compared to Inventor

Modeling is easier in SolidworksInventor has a great weakness in applying mates

as direction has to be specified as positive or negative

SolidWorks gives the direction toggle option for mating thus easing assembly

SolidWorks can automatically detect joint types, whereas you have to specify them in Inventor

Better animations can be created in Inventor

Comparison contd…Criterion User Interface SolidWorks Autodesk Inventor

Tutorials SolidWorks Autodesk Inventor

Solution Accuracy

SolidWorks Autodesk Inventor

Solution speed SolidWorks Autodesk Inventor

Cost Autodesk Inventor

SolidWorks

Current User Growth

2004

2006

2008

2010

020000400006000080000

100000120000

Trends in User Growth of Autodesk Inventor

(2004-2010)

User Number of Au-todesk Inventor

2004

2006

2008

2010

800000

850000

900000

950000

1000000

1050000

Trends in User Growth of Solidworks(2004-2010)

User Number of SolidWo...

http://www.google.com/insights/search/#

Current Market Share

1 2 3 4 5 6

Pro/Engineer SolidWorks Autodesk Inventor ANSYS UG NX Abaqus

43.31% 29.77% 11.89% 7.59% 4.97% 2.47%

Applications

Applications Mainly used in manufacturing industries

Automobile Aerospace/Aeronautics Marine Automation

Design Projects Tooling and Machine Design Packaging Layout Design Medical equipments Artificial Implant Design

Education Construction Architecture

Applications contd..

Automobile

Architecture

Construction

Transportation

http://artist-3d.com/free_3d_models/dnm/model_disp.php?uid=840

http://www.fmctraining.com/fmc.asp?v=Autodesk&g=Inventor&i=743

http://www.3dexport.com/img-lego-technic--pneumatic-crane-13787.htm

http://geospatial.blogs.com/geospatial

Medical Aerospace

Education Automation

http://www.technology4design.com/?tag=autodesk-inventor-2011

http://lorancepharma.com/Company.aspx

http://artist-3d.com/free_3d_models/dnm/model_disp.php?uid=1299

http://www.eng.fea.ru/modules.php?name=News&file=article&sid=436

References Autodesk Tutorial

http://www.google.com/insights/search/#

http://www.solidworks.com

http://usa.autodesk.com/adsk/servlet/pc/index?siteID=123112&id=13717655

http://en.wikipedia.org/wiki/Autodesk_inventor

http://usa.autodesk.com/adsk/servlet/pc/index?siteID=123112&id=13717655

http://www.aaadrafting.com/solidworks/solidworks-autodesk-inventor.html

Thank you!!Questions??