ME 160: Solid ModelingLecture 01: Introduction and First Solid Model

Lecture Instructor Lab Instructor

Jackson Jaworski Omar AlGafri

jawojm01@pfw.edu algao01@pfw.edu

MW | 5:00 – 6:00 p.m. MF: 12:00 – 1:00 p.m.

Overview

• Who are your professors?

• Introduction of course/syllabus

• Overview of SolidWorks

• Creating your first model

• Homework

Who are your professors?

Jackson Jaworski

Education• Bachelors in Mechanical Engineering – PFW• Masters in Engineering w/ concentration in

Mechanical Engineering – PFW• Applying for Ph.D. programs

Background• Research in heat transfer• Certified SolidWorks Associate• Taught ME160 in spring 2019• Other courses: Engr 127 (lab), Control Systems

Hobbies• Ultimate frisbee & disc golf• Playing saxophone and bass guitar

Omar AlGafri

Education• Bachelors in Mechanical Engineering – AUS• Masters in Engineering w/ concentration in

Mechanical Engineering – PFW

Background• Research in Solid Mechanics and Composites• Teaching ME 293• Experienced engineer in the field

of construction (MEP)• Fundamentals of Engineering Exam NCEES-U.S

Hobbies• Music• Travel and Food

Student Design Examples

Student Design Examples

Personal Design Examples

Personal Design Examples

Textbook

SyllabusObjectives

• Learn solid modeling techniques

• Master modeling skills using SolidWorks

• Utilize solid models for advanced engineering design

William E. Howard and Joseph C. Musto, Introduction to Solid Modeling Using

SolidWorks 2019, ISBN-9781260113303, McGraw Hill Higher Education.

(Not required but recommended)

Grades

SyllabusGrades and Final Exam

In-Class Exercises: 5%

Quizzes: 5%

Homework: 15%

Project: 30%

Midterm Exam: 20%

Final Exam: 25%

Total: 100%

Final Exam

Section 1: May 7 at 6:15 pmSection 2: May 5 at 5:45 pm

SyllabusCourse Outcomes

• Basic/advanced modeling skills (Today!)

• Create dimensioned drawings

• Illustrate design concepts

• Communicate through technical memos and presentations

• Use SolidWorks simulation and motion studies

SyllabusCourse Polices

• Do not submit another students electronic files.• Check email and website regularly.• No internet surfing, no music, and no playing games.• Silence cell phone during lecture.• Deadlines:

• Show exercises to instructor BEFORE leaving, no makeups.• Submit quizzes and tests when time has expired, no makeups.• Homework's BEFORE start of next class (-20% per day).

• Students with disabilities should contact the SSD office at Walb 113 (481-6657) for a description of services available.

SyllabusCourse Topics

• Introduction of SolidWorks (Today!)• Overview of Solid Modeling Techniques• Basic Part Modeling• Part Drawings• Advanced Part Modeling• Parametric Modeling• Basic Assemblies• Advanced Assemblies• Engineering Design Applications

• Static Simulation• Thermal Simulation• Flow Simulation

Downloading SolidWorks

1. Uninstall any/all previous versions of SolidWorks2. Go to www.solidworks.com/SDK using the SDK-ID: 92018SDK3. Download SolidWorks 2019-20204. During the download, you will receive an email with the 24-character serial

number needed to install and activate the license.

Refer to the handout online for any other questions.

SolidWorks?

Solidworks

Solid-works

Solid works

Solid Works

SolidWorks

Solid Modeling in Engineering Design

Evolution of Mainstream CAD (70’s)?

• Difficult to Visualize• Prone to Errors• Time Consuming to Change• Will the design work?

UNIX

???***!!!

Evolution of Mainstream CAD (80’s)

• Complex to Use• Expensive to Own• Difficult to Learn• Dedicated Users

Evolution of Mainstream CAD (90’s - today)

• Powerful• Affordable• Quick to Learn• Easy to Use

Design Skills

What you Can Learn – I

• 3D Models (part)• Bill of Materials (assembly)• Mechanisms (machine)• Surface Modelling (ergonomics)• Drawings (production

Simulation Skills

What you Can Learn – II

• Advanced Mechanisms• (Design concept, motion study)• Rendering (visualization)• Animation (communication)

FEA Skills

What you Can Learn – III

• Static Analysis (Solid Mechanics)• Heat Transfer (Thermal Dynamics)• Buckling (Stability)• Fatigue Analysis (Time Factor)

FEA (Flow Simulation) Skills

What you Can Learn – IV

• Aerofoil• Pipe Flow• Valve• Electrical Enclosure

Certified SolidWorks Associate

What you Should Get

• Spring 2019: Over 80% pass rate• Counts for 12.5% of your grade!

Operators

Constructive Solid Geometry

Union: Combining the sets of points of two discrete solids.

Intersection: Defining the common set of points to be found in both solids.

Difference: Producing the difference of two sets of points (note: Order matters!)

Hint: This will be on a homework, quiz, midterm, and final ☺

How to Open SolidWorks

SolidWorks – Getting Started

Creating a New File

.sldpart.sldasm

.slddrw

SolidWorks Interface

Command Manager

Head-Up View Toolbar

Feature Manager Design Tree

Status Bar

Task Pane

Menu Bar

Graphics Area

The SolidWorks Interface (cont.)

• Allows the user to toggle between Sketch tools, Feature tools, Assembly tools, etc…

The Heads-Up View – Perspective

Angles between faces are equal

Two of the three angles between faces are equal

No angles between faces are equal – Front Face is

emphasized

The Heads-Up View – Orientation

The Heads-Up View – Style

Hidden Lines Visible

Hidden Lines Removed

Wireframe

Shaded

Shaded with Edges

System Options vs Document Options

System Options:Apply to all documents

Document Properties:Apply to current

documents

Document Options in First Model – 1

• Under Document Properties: Go to Drafting Standardand select ANSI (American National Standards Institute) – Typical for US drawings

Document Options in First Model – 2

• Under Document Properties: Grid/Snap: Display Grid• This displays a grid when in 2D sketching mode

Document Options in First Model – 3

❑Under Document Properties: Units: IPS, three decimal places shown for lengths, none for angles

IPS (inches, pounds, seconds) are commonly used in the textbook.

Note: You may change the units at any time and SolidWorks will convert existing dimensions to the new unit system

Exercise I

• Create the flange shown in the figure on the left.

• Follow the proceeding tutorial or on pg.’s 5-29 in the book.

• When completed, raise hand and the instructor will check exercise.

• Once marked off, you are free to leave, ask questions, and/or work on homework.

Exercise I

• Be familiar with the SolidWorks part modeling environment

• Use these features:• Extruded Boss/Base• Extruded Cut• Circular Pattern• Fillet• Chamfer

• Learn how to create a new Reference Plane• Learn to consider the Design Intent when

planning a model

New Toys!

Exercise I – Step 1

• Draw a circle of Ø5.50• Use the Boss-Extrude tool to

extrude the model to a depth of 0.75 along positive Z-axis

Extrude Base

Exercise I – Step 2

• Sketch a Reference Plane offset from the front plane by 2.25

• Draw a circle of Ø2.75

Construction Plane

Design intent is the consideration of the end use of a part, and possible changes to the part, when

creating a solid model.

What is Design Intent?

What are some other ways we could have made this part?

Exercise I – Step 3

• Use the Boss-Extrude tool to extend the model to the next surface• i.e. Up to Next

Extrude Base

How would this have been done differently if we extruded the part from

the top surface?

Exercise I – Step 4

• Use the Extruded Cut tool to remove part of the model through the entire model of Ø1.50• i.e. Through All

Extruded Cut

How would the other cut through options possibly effect the design intent

of the part?

Exercise I – Step 5

• Create a Construction Circle of Ø4.25 with the center aligning with the center of the part.

• Create a Construction Line running vertically down the center of the part.

• Where the two meet (notice orange diamond), create a circle of Ø0.50

• Use the Cut-Extrude tool to cut the bolt hole Through All

First Bolt Hole

SolidWorks Tip: Naming Features

Unnamed Feature Tree Named Feature Tree

Which is easier to understand? Which is easier

to modify if you come back to this part in a few weeks?

Exercise I – Step 6

• Use the Circular Pattern feature under the Linear Pattern dropdown menu.

Parameters• Select an edge for which to repeat the

pattern around.• Choose how many instances the

pattern needs to be repeated (4).• Equal Spacing should be selected.• Select Bolt Hole as the feature to

pattern.

Circular Hole Pattern

Exercise I – Step 7❑Use the Fillet tool to create fillets

at specific edges.

Parameters❑Constant size.❑Select edges to fillet.❑Select Tangent propagation❑Select Full Preview❑Radius of 0.250

Fillets

Is it better to create all the fillets at once or as three individual fillets?

SolidWorks Tip: Fillet and Chamfer

Should you fillet or chamfer every edge in a part because of this?

Fillets and chamfers reduce stress concentrations in a part. A edge has a higher stress concentration then a

fillet or chamfer.

Exercise I – Step 8• Use the Chamfer tool to create fillets at

specific edges.• Can be found under Fillet tab in the

dropdown menu.

Parameters• Select Angle Distance.• Distance of 0.080• Angle of 45°• Select “Select Through Faces”• Select Tangent Propagation• Select Partial View

Chamfer

Completed!

Exercise I: Completed

Material: 1023 Carbon Steel Sheet (SS)

What is the mass of the part (lbs)?

6.23 lbs

Congratulations! You have completed your first model in SolidWorks!

Questions?Homework

Always due a week from when assigned unless told otherwise and due BEFORE the next class.

• Complete HW_01 CAD drawing• Submit on an engineering memo and

answer the following questions.• Review the online questions, not due.