HElmet project
Safety:
My helmet meets the safety standards that are agreed upon in the International Consensus Standards for Commercial Diving and Underwater Operations. It includes extremely strong UL level 4 glass. This makes the helmet visor very resistant to being cracked even in a collision. The structure of the helmet is made of titanium, which is used in some of the deepest diving submarines to further ensure they helmet is prepared for anything.
Materials:
My helmet was created to be used underwater. I had to take into consideration that when underwater, some materials will perform better than others that may do better on land. For inspiration on what to use, I did some research on submarines. I found that Titanium was the best metal for my helmet, since it can handle water pressure more than 350 meters deep. For my glass visor, I chose to use UL level 4 glass, because of its capability to stop a .50 caliber bullet, which will make sure it is ready for any impact. For my lights I chose to use LED bulbs over incandescent bulbs, they provided more durability, less risk of failure, brighter output, and less energy consumption which were all important in the design of a small but powerful light that a user may rely on.
Key Concepts:
-acceleration is a 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 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 is when an object remains still or moves in a constant direction at a constant speed.
-g force is when 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).
Unfortunately I don't have the pictures of my design right now, they are on the computer at school that I worked on the helmet for this project. I will upload them shortly.
My helmet meets the safety standards that are agreed upon in the International Consensus Standards for Commercial Diving and Underwater Operations. It includes extremely strong UL level 4 glass. This makes the helmet visor very resistant to being cracked even in a collision. The structure of the helmet is made of titanium, which is used in some of the deepest diving submarines to further ensure they helmet is prepared for anything.
Materials:
My helmet was created to be used underwater. I had to take into consideration that when underwater, some materials will perform better than others that may do better on land. For inspiration on what to use, I did some research on submarines. I found that Titanium was the best metal for my helmet, since it can handle water pressure more than 350 meters deep. For my glass visor, I chose to use UL level 4 glass, because of its capability to stop a .50 caliber bullet, which will make sure it is ready for any impact. For my lights I chose to use LED bulbs over incandescent bulbs, they provided more durability, less risk of failure, brighter output, and less energy consumption which were all important in the design of a small but powerful light that a user may rely on.
Key Concepts:
-acceleration is a 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 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 is when an object remains still or moves in a constant direction at a constant speed.
-g force is when 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).
Unfortunately I don't have the pictures of my design right now, they are on the computer at school that I worked on the helmet for this project. I will upload them shortly.