1
What is?
refers to a non automobile suspension system the weight of the support, including tires, wheels, brakes and the like.
2
[ 123] What’s the use?
unsprung mass of great significance for the stability and handling of the car, reduce the effectiveness of quality under one kilogram is equivalent to reduce the unsprung mass on 15KG spring. In the case of the sprung mass unchanged, reducing the unsprung mass can effectively enhance the car’s acceleration, stability and handling.
3 [ 123] principle:
vehicle acceleration of the process requires a lot of energy, and let the wheels from standstill to scroll up might be a lot of energy, the more energy the more heavy wheels needed Great impact acceleration wt wheels (tires or wheels) of the automobile is particularly important.
by weight of the wheel reduced, it will be smaller inertia, uneven surfaces encountered potholes faster the reaction of the corresponding (Of course, the impact of the suspension is very large), stability and handling will naturally rise.
on the integrated sprung mass, there is a simple formula: ÷ unsprung mass of the sprung mass = better.
Since the tire ground contact pressure is provided by the vehicle weight, body weight if large, naturally the tire ground contact pressure increase, but when pressed rough road, the tire would have a mass of the moving speed of the upper and lower suspension greatly affected, the greater the unsprung mass, the longer the time required to change direction (in a fixed setting for the suspension ) will result in reduced tracking performance undulating road, the vehicle weight if small, can not be effectively suspending the effective pivot fixed in position relative to the ground on the fluctuation, so that, when the tire had a chance to move when the degree of change, the body would float up.
4
reading:
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