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On May 18, 1905, the state of Oregon passed a law that required vehicles to have "a light, a muffler, and efficient brakes". [10]The legality of altering a motor vehicle's original equipment exhaust system varies by jurisdiction; in many developed countries such as the United States, [11] Canada, [12] and Australia, [13] such modifications are highly regulated or strictly prohibited.
The deletion of parts on a vehicle is an easy way for designers and vehicle owners to reduce parasitic and frontal drag of the vehicle with little cost and effort. Deletion can be as simple as removing an aftermarket part, or part that has been installed on the vehicle after production, or having to modify and remove an OEM part, meaning any ...
It frequently has a larger pipe than the rest of the exhaust system. This produces a final reduction in pressure and is sometimes used to enhance the car's appearance. In the late 1950s, in the United States, manufacturers had a fashion in car styling to form the rear bumper with a hole at each end through which the exhaust would pass.
Result of transmission loss (duct acoustics) calculation - a simple example (one chamber silencer). c=520m/s at 400°C; l=0.5m; h=1/3. Considering we have the most simplest reactive silencer with only one expansion chamber (length l and cross-sectional area S2), with inlet and outlet both having cross-sectional area S1).
Lightweighting is a concept in the auto industry about building cars and trucks that are less heavy as a way to achieve better fuel efficiency, battery range, acceleration, braking and handling. [ 1 ] [ 2 ] In addition, lighter vehicles can tow and haul larger loads because the engine is not carrying unnecessary weight. [ 3 ]
Gross vehicle weight (GVW): This is the curb weight plus all of the extras like passengers, ... How much does a small car weigh? A small car typically weighs somewhere around 2,500 pounds.
A diagram of an aquaplaning tire Two vehicles aquaplaning through large puddles on the road's surface. Aquaplaning or hydroplaning by the tires of a road vehicle, aircraft or other wheeled vehicle occurs when a layer of water builds between the wheels of the vehicle and the road surface, leading to a loss of traction that prevents the vehicle from responding to control inputs.
Sound reflections: by limiting the reflection using many methods, e.g. by using acoustic absorption (deadening) materials, trapping the sound, opening a "window" to let sound out, etc. By analyzing the entire sequence of events, from the source to the observer, an acoustic engineer can provide many ways to quieten the machine.