Volume Calculations of Parts using Solidworks



SolidWorks Lesson Template for Teachers to Contribute

Cover Sheet for Exemplary Lessons/Units Project

Faculty Member Name:_Jeff Toomey_____________________________ Date: 9/21/06__

School District: ___Northern New Mexico College___________________________

Teacher’s School email address: __jtoomey@nnmc.edu__________________________

Title of Lesson/Unit: ___Volume Calculations of Parts using SolidWorks_____

Science, Technology, Engineering and Math) STEM Concepts Addressed: __Geometry (Volume Calculations)_______________________________________

Length of instruction period: _50 min.__

How many periods needed to implement lesson unit: _3 50 min periods

Grade Level(s) for use: ____7-13___________________________________________

Objectives:

Demonstrate calculation of volumes of simple geometric shapes

Calculate volumes of machine parts using calculator

Acquire volumes of machine parts using Solidworks’ Mass Properties

Reinforce and practice basic modeling skills developed in Lesson 2

Materials:

Volume formula sheet

Calculator

Dimensioned machine part drawings

Procedures:

Start by reviewing volume formula calculations, including volume of a box (rectilinear prism), sphere, cylinder, wedge, cone, etc. Handout a sheet with volume formulas and a sheet with some sample problems to solve in class.

Move on to calculating volumes of 3 fairly simple machine parts. This gives students a better understanding of how volumes of machine parts are determined.

Create the 3 models using SolidWorks. Students should be able to complete the 3 machine parts with competencies acquired in Lesson 2: Basic Functionality from the SolidWorks STEM Teacher Guide. After the model completion, the student should be able to use the Mass Properties tool to ascertain part volume. Student can compare software obtained volumes with those calculated by the student.

Once students have the volume calculation process in hand, then one could go on to discuss material density, mass and calculations thereof.

Assessment:

Develop several simple models that students calculate the volume of. Then have students create the solid models and determine volumes using the Mass Property function. Students can compare hand calculations with those performed with Solidworks.

Resources Used: _________________________________________________________

Copyrighted Materials: ___________________________________________________

• What materials did you employ from published sources?

Volume Calculations of Parts using Solidworks

Objectives:

Demonstrate calculation of volumes of simple geometric shapes

Calculate volumes of machine parts using calculator

Acquire volumes of machine parts using Solidworks’ Mass Properties

Reinforce and practice basic modeling skills developed in Lesson 2

Materials:

Volume formula sheet

Calculator

Dimensioned machine part drawings

Procedure:

Start by reviewing volume formula calculations, including volume of a box (rectilinear prism), sphere, cylinder, wedge, cone, etc. Handout a sheet with volume formulas and a sheet with some sample problems to solve in class.

Move on to calculating volumes of 3 fairly simple machine parts. This gives students a better understanding of how volumes of machine parts are determined.

Create the 3 models using SolidWorks. Students should be able to complete the 3 machine parts with competencies acquired in Lesson 2: Basic Functionality from the SolidWorks STEM Teacher Guide. After the model completion, the student should be able to use the Mass Properties tool to ascertain part volume. Student can compare software obtained volumes with those calculated by the student.

Once students have the volume calculation process in hand, then one could go on to discuss material density, mass and calculations thereof.

Assessment:

Develop several simple models that students calculate the volume of. Then have students create the solid models and determine volumes using the Mass Property function. Students can compare hand calculations with those performed with Solidworks.

Volume Formulas

Cube = a3 [pic]

Rectangular prism = a b c [pic]

Irregular prism = b h [pic]

Cylinder= b h = ( r2 h [pic]

Pyramid = (1/3) b h [pic]

Cone = (1/3) b h = 1/3 (r2 h [pic]

Sphere = (4/3) (r3 [pic]

Ellipsoid = (4/3) ( r1 r2 r3 [pic]

Calculate the following:

[pic]

[pic]

[pic]

Calculate the volume of the following parts:

Example:

[pic]

Volume Calculation:

Volume Rectangular Prism = L x W x H = 3.00”x2.00”x.5” = 3.00 cu. in.

Volume of Cylinder (hole) = (R2 x H = 3.14x.252x.50 = .09 2 Holes = .18 cu in

Total volume of part = Volume of Prism- Volume of 2 holes = 3.00-.18 = 2.82 cu in

Using the SolidWorks Mass Property tool, the volume equals 2.80 cu in.

Attached find the drawings of 3 parts. Determine the volumes of each part first by calculating the volume, then by using the Mass Property tool.

[pic]

[pic]

[pic]

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