Background:
For this project we were tasked with creating a helmet of our choice using the Autodesk Fusion 360™ 3D modeling program. We had to complete research regarding the safety and physics behind how helmets work.
Terms to Know From STEM Website:
ACCELERATION: change in speed over a period of time; the higher the acceleration, the faster the change in speed. For example, if a car goes from 0 miles per hour (mph) to 60 mph in 2 seconds, it is a higher acceleration than if the car goes from 0 mph to 40 mph in 2 seconds. Acceleration is a rate of change of speed; NO change means NO acceleration. If something is moving at constant speed, it is NOT accelerating.
COEFFICIENT OF FRICTION: measurement of the level of friction embodied in a particular material. The formula is μ = f/N, where μ is the coefficient of friction, f, is the amount of force that resists motion, and N is the normal force. Normal force is the force at which one surface is being pushed into another.
CRUMPLE ZONES: areas of an object designed to deform and crumple in an impact, as a means to absorb the energy of a collision. The fronts of most automobiles are designed as crumple zones to protect the passengers from frontal collisions.
DRAG: term used in fluid dynamics that is sometimes referred to as air resistance or fluid resistance. Friction is one of multiple factors that influence the amount of drag encountered by a body moving through a fluid such as air or water.
INERTIA: when an object remains still or moves in a constant direction at a constant speed.
G FORCE: a force acting on a body as a result of acceleration or gravity, informally described in units of acceleration equal to one g.
FRICTION: force that resists motion when two objects or surfaces come in contact.
FORCE: causes masses to accelerate;they are influences that cause a change of movement, direction, or shape. When you press on an object, you are exerting a force on it. When a robot is accelerating, it does so because of the force its wheels exert on the floor. Force is measured in units such as pounds or newtons. For instance, the weight of an object is the force on the object due to gravity (accelerating the object towards the center of the earth).
KINETIC FRICTION (or dynamic friction): occurs when two objects are moving relative to each other and rub together (like a sled on the ground).
BELOW ARE LINKS TO THE RESEARCH REPORT AND EXPLANATION DESIGN:
For this project we were tasked with creating a helmet of our choice using the Autodesk Fusion 360™ 3D modeling program. We had to complete research regarding the safety and physics behind how helmets work.
Terms to Know From STEM Website:
ACCELERATION: change in speed over a period of time; the higher the acceleration, the faster the change in speed. For example, if a car goes from 0 miles per hour (mph) to 60 mph in 2 seconds, it is a higher acceleration than if the car goes from 0 mph to 40 mph in 2 seconds. Acceleration is a rate of change of speed; NO change means NO acceleration. If something is moving at constant speed, it is NOT accelerating.
COEFFICIENT OF FRICTION: measurement of the level of friction embodied in a particular material. The formula is μ = f/N, where μ is the coefficient of friction, f, is the amount of force that resists motion, and N is the normal force. Normal force is the force at which one surface is being pushed into another.
CRUMPLE ZONES: areas of an object designed to deform and crumple in an impact, as a means to absorb the energy of a collision. The fronts of most automobiles are designed as crumple zones to protect the passengers from frontal collisions.
DRAG: term used in fluid dynamics that is sometimes referred to as air resistance or fluid resistance. Friction is one of multiple factors that influence the amount of drag encountered by a body moving through a fluid such as air or water.
INERTIA: when an object remains still or moves in a constant direction at a constant speed.
G FORCE: a force acting on a body as a result of acceleration or gravity, informally described in units of acceleration equal to one g.
FRICTION: force that resists motion when two objects or surfaces come in contact.
FORCE: causes masses to accelerate;they are influences that cause a change of movement, direction, or shape. When you press on an object, you are exerting a force on it. When a robot is accelerating, it does so because of the force its wheels exert on the floor. Force is measured in units such as pounds or newtons. For instance, the weight of an object is the force on the object due to gravity (accelerating the object towards the center of the earth).
KINETIC FRICTION (or dynamic friction): occurs when two objects are moving relative to each other and rub together (like a sled on the ground).
BELOW ARE LINKS TO THE RESEARCH REPORT AND EXPLANATION DESIGN:
SKETCH OF HELMET
3D Modeling:
Reflection:
This project was nothing short of frustrating. Learning to use the software was no easy feat. It took awhile to get the hang of it, but I eventually figured it out. Another difficulty in this project was understanding how the key concepts connected to helmets and how they worked. Something that was interesting about this project was researching helmets and gaining a better understanding of an everyday object. It was also a gratifying feeling when I finally finished since it was so hard to understand the software in the first place. Overall I'm happy I was able to complete this project as I have gained many new skills. I now know more about helmets and how to use 3D modeling.
This project was nothing short of frustrating. Learning to use the software was no easy feat. It took awhile to get the hang of it, but I eventually figured it out. Another difficulty in this project was understanding how the key concepts connected to helmets and how they worked. Something that was interesting about this project was researching helmets and gaining a better understanding of an everyday object. It was also a gratifying feeling when I finally finished since it was so hard to understand the software in the first place. Overall I'm happy I was able to complete this project as I have gained many new skills. I now know more about helmets and how to use 3D modeling.