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
- Title page
- Orthographic drawings (top and profile)
- Oblique drawing
- Safety features
- Fastening methods
- Chart of parts
- Performance log
3)Task and resource list
4)Construction
Systems
Technology Resources
- People
- Information
- Materials
- Tools/Machines
- Energy
- Capital (money)
- Time
Problem Solving Steps
- Understand the Problem
- Define
- Limits and Constraints
- Gather Information
- Research/Apply
- Develop Possible Solutions
- Descriptions/Sketches
- Choose Best Solution and Plan it
- Final Solution
- Create the Solution
- Assembly
- Evaluate the Solution
- Test/Compare
Crash Test Vehicle (CTV)Grading Policy
Name:______
Computer proposal(General deductions: spelling, line type, format, etc.)
Requirements / Possible point / Point earnedTitle 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 earnedTransfer 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 earnedFirst 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 earnedTools/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 earnedSafety 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 ShellSurvives 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.
______
______
______
______
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