At the beginning of this unit we were given tutorials on how to design our own 3D helmet model. At the beginning of this project, we were required to go through a series of tutorials on how to build a standard helmet in Fusion 360, so that we could learn how to operate the program. Once we watched all the tutorials we went onto designing our 3D helmet.
Concepts:
Acceleration: Acceleration is a measurement of velocity over time. Abrupt changes in velocity can be very dangerous to humans, as they impart a lot of force. Acceleration is also covered here.
Coefficient Of Friction: The coefficient of friction of a material is the measurement of the level of friction it has. 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 forces involved with the collision between the objects that is causing the friction.
Crumple Zones: The areas of a device designed to absorb an impact by deforming are crumple zones. In our helmet the crumple zone is the inner lining, though the outer lining will also crumple under enough force.
Drag: Also known as air resistance, drag is the amount an object will slow down when it moves through the atmosphere due to air displacement. A good helmet has little drag; a good parachute has lots of drag.
Inertia: Inertia is a object's tendency to resist change. If an object is motionless, it can be hard to get it to start moving, and once it starts moving, it will resist attempts to slow it down, or alter its direction.
G Force: The force acting on the body due to acceleration, measured in units of earth gravity. Unless you are moving very fast right now, you are likely experiencing 1 G. The body can't take too many Gs, so it is important to try and negate as much acceleration as possible during a crash.
Friction: Friction is the force that resists the motion of 2 objects against one another. It prevents everything from being slippery all the time.
Force: A force is any influence that causes a change in movement, direction, or shape. Typing exerts force on the keyboard; a motorcyclist exerts force on the ground to move. There is a force behind any movement. You can calculate force using the equation F=MA.
Kinetic Friction: A force that acts on moving objects that touch each other. Each object will experience a force in the opposite direction to that which they are moving. The strength of the force is decided by the coefficient of friction.
Acceleration: Acceleration is a measurement of velocity over time. Abrupt changes in velocity can be very dangerous to humans, as they impart a lot of force. Acceleration is also covered here.
Coefficient Of Friction: The coefficient of friction of a material is the measurement of the level of friction it has. 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 forces involved with the collision between the objects that is causing the friction.
Crumple Zones: The areas of a device designed to absorb an impact by deforming are crumple zones. In our helmet the crumple zone is the inner lining, though the outer lining will also crumple under enough force.
Drag: Also known as air resistance, drag is the amount an object will slow down when it moves through the atmosphere due to air displacement. A good helmet has little drag; a good parachute has lots of drag.
Inertia: Inertia is a object's tendency to resist change. If an object is motionless, it can be hard to get it to start moving, and once it starts moving, it will resist attempts to slow it down, or alter its direction.
G Force: The force acting on the body due to acceleration, measured in units of earth gravity. Unless you are moving very fast right now, you are likely experiencing 1 G. The body can't take too many Gs, so it is important to try and negate as much acceleration as possible during a crash.
Friction: Friction is the force that resists the motion of 2 objects against one another. It prevents everything from being slippery all the time.
Force: A force is any influence that causes a change in movement, direction, or shape. Typing exerts force on the keyboard; a motorcyclist exerts force on the ground to move. There is a force behind any movement. You can calculate force using the equation F=MA.
Kinetic Friction: A force that acts on moving objects that touch each other. Each object will experience a force in the opposite direction to that which they are moving. The strength of the force is decided by the coefficient of friction.
Reflection: During this project we designed our own 3D helmet. Our group did not start on this project til a few days after it had been assigned which already had us crammed for time. I would say during this unit I wasn't as focused on this part of the project but more working on our capstone project. Another group member worked on most of our 3D model which I focused on researching more on the capstone project. While working on the capstone project I gave out ideas and advice on how it could look better and tools to use while making it. Overall I would say this project was a great success! Next time we need to work on more communication. Throughout this project my group and I were often caught working on other stuff which wasn't good but next time we will change that. After this project I would say it was very successful and a lot of fun!