Technical Description Memorandum Essay

The bicycle is a common form of transportation recognized by most people in the world. However, it is a machine with many different aspects necessary for it to function.

Because of its place in everyday life, and its mechanical complexity, l, an student, have been asked to write this document describing a conventional bicycle in order to practice technical writing about a subject related to my major. DETAILS: The bicycle is a two-wheeled transportation mechanism, mechanically powered by most commonly a single rider. Unlike various other transportation mechanisms, for example a motorcycle, the bicycle is a completely environmentally friendly means of transportation, due to its reliance on the rider’s energy instead of fossil fuels.

A bicycle also differs from other two-wheeled transportation mechanisms, which rely on the rider’s energy to move forward, such as a kick scooter, in that it has also has a seat for the rider. Physical The appearance of a bicycle is largely made up of a metal frame, most commonly either steel or aluminum, and two wheels.The frame, which is made up of five tubes forming wow triangles, and has a handlebar attached above the front tire, a triangular, cushioned seat positioned closer to the back tire, and pedals below the seat attached to the back tire via a rotating chain. The two wheels are located at the front and rear Of the bicycle. They are equal sized and covered in black tires made of rubber.

Each wheel contains about thirty- to-forty spokes, or thin metal rods running through the centre of the wheel. Functional Each part of a bicycle has multiple functions.The frame, for example, connects all the efferent components of the bicycle while also supporting and distributing the rider’s weight, to keep from buckling. Without the frame a bicycle would be a unicycle and a separate single tire connected to a handlebar. Additionally, because a rider leans forward the frame distributes the riders weight evenly over the two wheels by having the rider sitting farther back and not in the center of the bicycle.

The frame also acts as a shock absorber to create a more comfortable experience for the rider.In addition to the frame, the wheels also take part in supporting the riders eight because ultimately they are what holds the entire bicycle upright. All of the rider’s weight is balanced be;en the two tires. However, TV&’0 simple metal rings alone would not be able to support an average person’s weight, this is where the thirty or so spokes, on each wheel, come into play. The spokes are used to further distribute the bicycle’s load, and to keep the wheels from buckling. This support is achieved by spreading the rider’s weight across all the spokes.

In this way each spoke only needs to bear a tiny fraction f the rider’s total weight Other components of a bicycle are not only necessary for it to function properly but also for the rider’s convenience. The handlebar is needed for the rider to be able to lean forward while holding onto something, to steady themselves, to turn, and to brake. Changing direction is as easy turning the handlebar. Also by having the braking levers attached to the handlebar, braking is always at the rider’s fingertips. Operational A bicycle requires multiple different features in order to operate.First often crank deals, are used to turn the rider’s energy into kinetic energy, which causes the bicycle to move forward. As the rider applies a downward force to the pedals, the crank spins, rotating the chain, which is also connected to the rear wheel.

This rotation, in turn, spins the back wheel, which then drives the front tire forward as well. Additionally, in order to function properly a bicycle also necessitates a way to maneuver and turn, which comes in the form of a handlebar. When a rider wants to change direction, a simple turn of the handlebar is all that is needed.By turning the handlebar in a direction, right or left, the head tube, which connects the handlebar to the front wheel, also turns, ultimately causing the front wheel to turn, too. When the front wheel changes its forward direction the frame and the rear back wheel follow. Although the main purpose of a bicycle is to transport the rider, it must also be able to stop at a moments notice.

Braking is achieved by pressing the brake levers on the handlebar, as mentioned above. When the levers are pressed, they cause the breaks to empress onto the rims of the front and back wheels.This compressing produces friction, which turns the kinetic energy the wheels possess into heat, initiating slowing down of the bicycle and its ultimate complete stop. Conclusion The bicycle is an effective, environmentally friendly means of transportation used by many daily. Although belonging to a class consisting Of other similar mechanisms, it is distinctive in many ways. Additionally, it is made up of many different components, each having a unique functional necessary for a bicycle to operate properly.