Personalized 3D Helmet
Helmets are a very important part of life. A head injury means a brain injury, and helmets are used to prevent head injuries and will provide some protection for your head, face, or neck. 1.6-3.8 million sports related concussions occur in the United States each year. According to the Cosumer Reports National Research Center, 58 percent of Americans don't wear a helmet while cycling and in 2007, 92 percent of rider killed while cycling were not helmeted.
Helmets are used in various sports and activities. They are worn by baseball players, construction workers, and other athletes and workers who have a higher chance of getting a head injury.
Skateboarding and longboarding are amongst the trends of the culture and a lot of accidents occur while performing these activites; people run into eachother, they fall, etc. For this project I decided to design a model of a typical skateboard/longboard helmet. This type of helmet is a bucket shape with a hard exterior made from ABS plastic, fiberglass composition carbon fiber. Beneath the shell, there is a light and stiff styrofoam material called EPS or expanded polystyrene. More impact absorption and distribution qualities are found in helmets with ESP liners that are approved for both bike and skate. In my design, I included a strong outer shell, comfort padding, and a helmet strap for extra security and protection.
http://www.protectthebrain.org/Brain-Injury-Research/What-is-a-Concussion-.aspx
http://www.bikehugger.com/posts/consumer-reports-58-percent-do/
https://www.allsportprotection.com/How_to_Choose_a_Skateboard_Helmet_s/694.htm
Helmets are used in various sports and activities. They are worn by baseball players, construction workers, and other athletes and workers who have a higher chance of getting a head injury.
Skateboarding and longboarding are amongst the trends of the culture and a lot of accidents occur while performing these activites; people run into eachother, they fall, etc. For this project I decided to design a model of a typical skateboard/longboard helmet. This type of helmet is a bucket shape with a hard exterior made from ABS plastic, fiberglass composition carbon fiber. Beneath the shell, there is a light and stiff styrofoam material called EPS or expanded polystyrene. More impact absorption and distribution qualities are found in helmets with ESP liners that are approved for both bike and skate. In my design, I included a strong outer shell, comfort padding, and a helmet strap for extra security and protection.
http://www.protectthebrain.org/Brain-Injury-Research/What-is-a-Concussion-.aspx
http://www.bikehugger.com/posts/consumer-reports-58-percent-do/
https://www.allsportprotection.com/How_to_Choose_a_Skateboard_Helmet_s/694.htm
Reflection
I was somewhat confused when we were asked to design a 3D helmet on the computer. I had never done any sort of designing on a computer before, but I was excited for the challenge. The Fusion program was somewhat frustrating because it took so long to download, but watching the tutorial videos helped me better understand what I was about to do. It took a lot of messing around with different things before I really knew what I was doing but I sort of got the hang of it and ended up deciding to design a motorcycle type helmet that has full head protection.
Key Concepts
ACCELERATION is a change in speed over a period of time; the higher the acceleration, the faster the change in speed.
COEFFICIENT OF FRICTION is the 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 are 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 is a 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 is a 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).
NEWTON'S SECOND LAW OF MOTION
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
COEFFICIENT OF FRICTION is the 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 are 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 is a 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 is a 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).
NEWTON'S SECOND LAW OF MOTION
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.