Mechanical Engineering P Introduction to e t “The contents seem to be quite logical and appropriate for this book. After explaining the r o theory, special examples with increasing complexity are worked out in detail.” v Static Analysis Using a —Alois Steindl, Vienna University of Technology, Austria “I loved the way the author guides the reader through intricate relationships in a very simple SolidWorks Simulation® way, thus making of science of construction mathematical concepts, indeed very complex by their nature, as simple as solving a first degree equation!” —Vincenzo Fine, Clyde Bergemann Materials Handling Ltd, Doncaster, UK Uses Finite Element Analysis (FEA) as Implemented in SolidWorks Simulation I n t Outlining a path that readers can follow to ensure a static analysis that is both accurate and sound, r o Introduction to Static Analysis Using SolidWorks Simulation effectively applies one of the d most widely used software packages for engineering design to the concepts of static analysis. u This text utilizes a step-by-step approach to introduce the use of a finite element simulation S c within a computer-aided design (CAD) tool environment. It does not center on formulae and o t the theory of FEM; in fact, it contains essentially no theory on FEM other than practical li io d guidelines. The book is self-contained and enables the reader to progress independently without n W an instructor. It is a valuable guide for students, educators, and practicing professionals who t wish to forego commercial training programs but need to refresh or improve their knowledge oo of the subject. r kS st Classroom Tested with Figures, Examples, and Homework Problems a St ii The book contains more than 300 illustrations and extensive explanatory notes covering the mc features of the SolidWorks (SW) Simulation software. The author presents commonly used A u examples and techniques highlighting the close interaction between CAD modelling and FE ln a analysis. She describes the stages and program demands used during static analysis, details a t different cases, and explores the impact of selected options on the final result. In addition, the il oy book includes hands-on exercises, program commands, and a summary after each chapter. ns ®i s Introduction to Static Analysis Using SolidWorks Simulation equips students, educators, and practicing professionals with an in-depth understanding of the features of SW Simulation U applicable to static analysis (FEA/FEM). s i n g K23105 Radostina V. Petrova 6000 Broken Sound Parkway, NW Suite 300, Boca Raton, FL 33487 ISBN: 978-1-4822-3618-7 711 Third Avenue 90000 an informa business New York, NY 10017 2 Park Square, Milton Park www.crcpress.com Abingdon, Oxon OX14 4RN, UK 9 781482 236187 w w w. c r c p r e s s . c o m Introduction to Static Analysis Using SolidWorks Simulation® Introduction to Static Analysis Using SolidWorks Simulation® Radostina V. Petrova CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2015 by Taylor & Francis Group, LLC CRC Press is an imprint of Taylor & Francis Group, an Informa business No claim to original U.S. Government works Version Date: 20140514 International Standard Book Number-13: 978-1-4822-3619-4 (eBook - PDF) This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the valid- ity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint. 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Visit the Taylor & Francis Web site at http://www.taylorandfrancis.com and the CRC Press Web site at http://www.crcpress.com To my loving family CONTENTS Foreword ............................................................................................................................xi Preface .............................................................................................................................xiii Acknowledgments ............................................................................................................xv Author ............................................................................................................................xvii Chapter 1 Introduction ........................................................................................................................1 1.1 Objectives of the Book .....................................................................................1 1.2 Basics Concepts of FEM ...................................................................................1 1.3 Basic Steps of All Engineering Software, Based on FEM ...............................2 1.4 SW Simulation as a Package for FEA ...............................................................3 Chapter 2 Development of a Finite Element Model of a Body (Pre-Processor Stage) .....................5 2.1 Description of Functions of Physical Model ....................................................5 2.2 Development of the Geometrical Model in SolidWorks .................................6 2.3 Some More Perquisite Knowledge before Development of SW Simulation Model ......................................................................................15 2.3.1 Main Features of Linear Static Analysis .............................................15 2.3.2 Starting SolidWorks Simulation..........................................................16 2.3.2.1 Activate SW Simulation Toolbox .........................................16 2.3.2.2 Open the CAD Model .........................................................17 2.3.2.3 Getting Access to Help Files ...............................................18 2.4 Introducing the Material of the Body ............................................................26 2.4.1 How SW Simulation Handles Material Properties ............................26 2.4.2 Defining the Material of the Chisel ...................................................30 2.5 Introducing the Fixtures to the Body ............................................................31 2.5.1 Different Fixtures Supported by SW Simulation ...............................31 2.5.2 Defining the Fixtures to the Chisel ...................................................37 2.6 Introducing the Loads to the Body ................................................................39 2.6.1 Different Structural Loads, Which Can Be Introduced by SW Simulation.....................................................................................39 2.6.2 Defining the Loads to the Chisel .......................................................43 vii Contents Chapter 3 Development of a Finite Element Model of a Body (Processor Stage) .........................49 3.1 How Does Finite Element Analysis Work? ....................................................49 3.2 What Are the FEs and the Mesh? ...................................................................50 3.3 Meshing of the Analysed Body ......................................................................58 3.4 Running the FEA .............................................................................................60 Chapter 4 Visualising and Systematising the Results of FEA (Post-Processor Stage) .....................65 4.1 Setting the Analysis and the Results Preferences ..........................................65 4.2 Different Ways to Systematise and Plot the Results of FEA ..........................75 4.2.1 Results Display through Simulation Advisor .....................................75 4.2.2 Results Display through Results Folder in the Analysis Tree ...........85 4.2.3 Results Display through Icons on the SW Simulation Command Bar ..................................................................................111 4.3 Listing the Results of the Analysis ...............................................................117 4.4 Drawing Graphs of the Analysis Results .....................................................123 Chapter 5 Impact of Mesh Density and Viewing Mode on Final Results .....................................129 5.1 Different Types of FEs, Regarding the Geometry of the Model .................129 5.2 Impact of Mesh Density, When Standard Solid Mesh Is Used ...................132 5.2.1 Coarse Mesh Calculations ................................................................132 5.2.2 Fine Mesh Calculations ....................................................................135 5.2.3 Control Mesh Calculations ...............................................................137 5.2.4 Comparison of Results and Conclusions .........................................142 5.3 Impact of Mesh Density, When Curvature-Based Solid Mesh Is Used ......146 5.3.1 Development of CAD Model of Hole Puncher ...............................146 5.3.2 Development of Hole Puncher Model – Pre-Processor Stage ........148 5.3.3 Coarse Mesh Calculations ................................................................150 5.3.3.1 Scenario 1 ..........................................................................150 5.3.3.2 Scenario 2 ..........................................................................151 5.3.4 Fine Mesh Calculations ....................................................................153 5.3.5 Control Mesh Calculations ...............................................................155 5.3.5.1 Scenario 3 ..........................................................................155 5.3.5.2 Scenario 4 ..........................................................................158 5.3.6 Comparison of Results and Conclusions for Curvature-Based Mesh .....................................................................160 5.4 Impact of Mesh Density on Calculation Time and Accuracy .....................163 5.5 Comparison between the Node Mode and the Element Mode ..................165 5.6 Final Recommendations on Selection of Mesh Type ..................................165 Chapter 6 Static Analysis of Solid Body with Circular or Planar Symmetry ................................167 6.1 Development of CAD Models of the Analysed Bodies ...............................167 6.1.1 Geometrical Model of a Body with Circular Symmetry .................167 6.1.2 Geometrical Model of a Body with Planar Symmetry ...................177 6.2 Static Analysis of the Designed Symmetrical Machine Unit with Circular Symmetry ........................................................................................189 6.2.1 Why Use Symmetry and How It Works ..........................................189 viii