Suspension is the floorboard of unit of all the link that send force between automobile body and wheel. Its action is what attend road surface function at the wheel is perpendicular return power (the force that prop up) , fore-and-aft return power (traction and force of apply the brake) the moment of force that opposes force and these to turn over force to cause with side direction delivers automobile body to go up, in order to assure the normal travel of the car.
Although car suspension has the different configuration in each, but it is commonly by stretch component, 3 parts comprise vibrating absorber and oriented orgnaization. Because the road surface of car travel cannot be absolutely even, road surface action what go up at the wheel is perpendicular returning power often is concussion sex, tell this kind of wallop when travel to will reach very great numerical value on bad road surface especially. When wallop passes automobile body, the likelihood causes the inchoate damage of car parts; When sending the member that multiply and goods, the member that will make multiply feels extremely uncomfortable, goods is injured possibly also. For alleviation concussion, in car travel department, besides the pneumatic tire that uses flexibility, generation vibration. The member that persistent vibration makes easily multiply feels uncomfortable with exhaustion. Reason suspension system still should be had decrease display vigour to use, in order to make oscillatory speed attenuation, amplitude speed is reduced, for this, set special vibrating absorber in the suspension system of a lot of forms.
When wheel photograph is jumpy to automobile body, wheel (change direction especially annulus) athletic contrail should accord with particular demand, operate with respect to what affect a car otherwise stability, accordingly, oriented orgnaization still should be had in suspension system, beat in order to make the wheel presses certain contrail with automobile body relatively.
The 3 shares of above rise cushion respectively, decrease brace up with oriented action, however 3 person collective task is to send force. On most car and passenger car, change direction to prevent automobile body to be in etc had happened below the circumstance big transverse tilt, still set auxiliary and stretch component in suspension system, stabilizer anti-roll bar.
Suspension system asks to have only afore-mentioned each functions, be not on the structure must set these sole plant, the leaf spring that exemple as usual sees, besides having amortize effect as stretch component, go up in the car when him fore-and-aft find a place for, when and one aspect of the matter and frame do fixed hinge joining, can load the job that has contrail of decision wheel motion, not was necessary to install other again consequently oriented orgnaization, in addition, general leaf spring is multichip those who fold, itself has certain damping capacity namely, be opposite consequently when damping demand is not high, in using leaf spring to regard the suspension of stretch component as the system, need not install shock absorber (the rear overhang of medium-sized van is worn and shock absorber is not installed in heavy truck suspension commonly)
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