Scientific principles and techniques Essay Example | Topics and Well Written Essays - 1500 words

Scientific principles and techniques - Essay ExampleMechanics are based on a few laws of nature which are evident without proof or argument. Mechanics is a highly developed branch of physics which is tasked with the determination and description of the motion of bodies and the investigation of the forces that are associated with the motion (Gross, et al. 2009). Suspension system The recess system of a car is a collection of important systems that are located on the lower part of the car and are part of the chassis. These let in the frame, suspension system, steering system and tires and winds. The suspension of a car is mainly composed of three systems namely springs, dampers and anti-sway obstacles. Springs are based on four designs roll springs which are the most common and are made of a heavy-duty taphousericade that is coiled around an axis. They compress and expand when a force is utilize on them to absorb the motion of the wheels leaf springs which are made up of several layers of metal that are bound together to perform as a single unit. They absorb shock in trucks and heavy-duty automobiles to reduce the force exerted on the wheels torsion bars which are made of a steel bar that is coiled and air springs which are made up of a cylindrical chamber of air placed between the wheel and the body of the car. Manufacture The strong is commonly used is alloys of steel such as high-carbon, chrome vanadium and stainless steel. The manufacture butt against of the springs involves coiling, hardening and a final stage of finishing. folio springs are made from bars of flat stock and are heated to elevated temperatures. They are then formed by the use of a automobile or by hand. Car springs are made by hot winding which involves heating the metal to very high temperatures to make it formable. When red hot, the bar is then coiled around a mandrel until it acquires the required shape then it is quickly removed from the mandrel and dipped in oil to coolheaded and harden it. To ensure the spring acquires the required strength it is heat treated appropriately. For the leaf springs, the flat ends are attained by grinding. The bar is mounted in a jig and is held against an abrasive wheel that is rotating until the required flatness is achieved. A coarse wheel is used first then a finer wheel is used to ensure a fine finish and a cooling lubricant is used to ensure a role finish and to increase rotating shaft life. In a subsequent processes, the spring is exposed to bombardment with tiny steel balls that hammer the steel and make it smooth and this ensures that the steel can stick out fatigue and cracking after years of use. The spring is then compressed fully in order to achieve the desired pitch and length and this process is sometimes repeated severally. The coating process which is aimed at preventing corrosion of the metal is the next step. The entire surface of the metal is either painted, dipped in smooth rubber or plated with ano ther metal for example chromium or zinc though electroplating. The spring is then tested through various quality control checks to ensure it adheres to the standards. Function They support the weight, absorb and reduce shock and help to maintain contact by the tire on the road surface. 1. Statics. At simplicity the coil spring is extended with the only force acting on it being the weight of the car. The leaf spring is curved at rest or when no force is acting on it. 2. Strength of materials. The springs in a car are made of a strong heavy-duty bar that is made of steel. This