TECHNOLOGY EDUCATION

Problem Solving Activity "CRASH TEST VEHICLE"

NAME:______

PROBLEM: Following the Problem Solving Method AND the Systems Diagram described in class, design, build, AND test a Restraint Design that should protect your egg passenger in a front end crash. Your design will include a Vehicle Body Design(VBD) & Safety Restraint Device(SRD).

LIMITS/CONSTRAINTS:

1. Carefully, accurately measure the car body with all its features (VBD specifications).

2. Approved materials may be used on the vehicle. (Ask your teacher!)

3. Bumper Design must not exceed 1" from the front of the car

4. NO Braking mechanism can be used!

5. Egg passengers must be upright, and have the "ability" to see and breathe.

6. Driver must be able to enter/exit the SRD easily.

Courses II requirements

1)Drive Specification (Egg Math)

2)CTV CAD proposal

  1. Title page
  2. Orthographic drawings (top and profile)
  3. Oblique drawing
  4. Safety features
  5. Fastening methods
  6. Chart of parts
  7. Performance log

3)Task and resource list

4)Construction


Systems

Technology Resources

  • People
  • Information
  • Materials
  • Tools/Machines
  • Energy
  • Capital (money)
  • Time

Problem Solving Steps

  1. Understand the Problem
  2. Define
  3. Limits and Constraints
  4. Gather Information
  5. Research/Apply
  6. Develop Possible Solutions
  7. Descriptions/Sketches
  8. Choose Best Solution and Plan it
  9. Final Solution
  10. Create the Solution
  11. Assembly
  12. Evaluate the Solution
  13. Test/Compare

Crash Test Vehicle (CTV)Grading Policy

Name:______

Computer proposal(General deductions: spelling, line type, format, etc.)

Requirements / Possible point / Point earned
Title page / 10
Top view / 10
Profile view / 20
Oblique view / 20
Safety Features / 10
Fastening Methods / 10
Chart of parts / 10
Performance log / 10

Total Points Earned______/100____

Task/Resource listYou will be graded based on the accurately and completeness of the Task and Resource

sections for each of the following categories.

Required categories / Possible Points / Points earned
Transfer vehicle design to your block and shaping and forming vehicle body
Spelling / 10
Lettering/Neatness / 10
The proper resource(s) are being used for each task / 10
First step layout, second step processing material, and third step fastening method / 10
Bumper design and assembly
Spelling / 10
Lettering/Neatness / 10
The proper resource(s) are being used for each task / 10
First step layout, second step processing material, and third step fastening method / 10
Safety Restraint Device design and assembly
Spelling / 10
Lettering/Neatness / 10
The proper resource(s) are being used for each task / 10
First step layout, second step processing material, and third step fastening method / 10

Total Points Earned______/120___

Grade Sheet grade____/100__

Grading Policy continued on back

Crash Test Vehicle Evaluation

In this section you will be rated on your level of achievement:

10 Outstanding quality of work

9 Very good quality of work

8 Satisfactory quality of work

7 Work needs improvement

6-0 Poor quality works or incomplete work

CTV Performance Log (Four entries with only one change made to original vehicle design)

Performance log entry / Possible points / Points earned
First test / 10
Second test / 10
Third test / 10
Fourth test / 10

Total Points Earned______/40___

Grade Sheet grade____/100__

CTV Construction-Evidence of proper use of:

Construction process / Possible points / Points earned
Tools/Machines / 10
Fastening / 10
Evidence of layout / 10

Total Points Earned______/30___

Grade Sheet grade____/100__

CTV Safety Features-Comparison of your Computer Proposal to your Final Vehicle Design.

Construction process / Possible points / Points earned
Safety restraint / 10
Bumper / 10
Block design / 10

Total Points Earned______/30___

Grade Sheet grade____/100__

CTV Ramp Performance Testing- Egg is “dead” when the yolk is seeping out of a crack in the shell.

Egg Survival / Cracked Shell / Uncracked Shell
Survives level 1 / 60 / 65
Survives level 2 / 65 / 70
Survives level 3 / 70 / 75
Survives level 4 / 75 / 80
Survives level 5 / 80 / 85
Survives level 6 / 85 / 90
Survives level 7 / 90 / 95
Survives level 8 / 95 / 100

Grade Sheet grade____/100__

Egg Math

Name: ______

This equation can be used to find the Circumference, Diameter and Radius of any circle.

C = π • d

C = Circumference d = Diameterr = Radiusπ = 3.14

The Radius of a circle is half the distance across a circle

The Diameter of a circle is the full distance across a circle

The Circumference of a circle is the distance around the out side of a circle

Example 1: / The radius of a circle is 2 inches. What is the diameter? /
Solution:
Example 2: / The diameter of a circle is 3 centimeters. What is the circumference? /
Solution:
Example 3: / The radius of a circle is 2 inches. What is the circumference? /
Solution:
Example 4: / The circumference of a circle is 15.7 centimeters. What is the diameter? /
Solution:

Why does this matter? Well for you to design a Safety Restraint system for your CTV you need to find out the size of an egg. By using this equation (C = π •d) you will be able to determine the size of an egg.

Step one

Eggs come in many different sizes, so the first step is determining the size of the egg you are measuring. Egg range in size from small, medium, large, extra large, and jumbo.

What is the size labeled on your egg carton? ______

Step two

What is the circumference of the tall part of your egg? ______

So what is the diameter (height) of your egg?______

Use this equation C = π • d

Step Three

What is the Circumference of the short part of your egg? ______

So what is the diameter (width) of your egg?______

Use this equation C = π • d

Safety Restraint Device

Name: ______Period: ______

Description of your Safety Restraint Device (SRD)

Use sentences to accurately describe the Design and Safety Features (3-5) Sentences

______

______

______

______

Profile view of SRD (Include labels for each part)

Bill of Materials

Part Name / Material / Where material comes from / Size (Length, Width, Height)

Fastening Details

Use sentences to accurately describe how each part will be fastened to themselves and the vehicle.

Example: The bumper will be fastened to the front of the block by hot glue.

______

______

______

______

1