cca1p1 1701 molnar short long arms
DESCRIPTION
proiect, in lb engleza suspensie ,TRANSCRIPT
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Short long arms suspension (SLA)
Is also known as an unequal length double wishbone suspension. The upper arm is typically
an A‐arm, and is shorter than the lower link, which is an A‐arm or an L‐arm, or sometimes a pair of
tension/compression arms.
Double wishbones are usually considered to have superior dynamic characteristics as well as
load‐handling capabilities, and are still found on higher performance vehicles.
Advantages:
‐ when the vehicle is in a turn, body roll results in positive camber gain on the lightly loaded inside
wheel, while the heavily loaded outer wheel gains negative camber.
‐provides the engineer more free parameters, suspension can be tuned easily and wheel motion can
be optimized
‐ They also provide increasing negative camber gain all the way to full jounce travel, unlike the
MacPherson strut, which provides negative camber gain only at the beginning of jounce travel and
then reverses into positive camber gain at high jounce amounts.
Disadvantages:
‐braking and cornering forces are higher, needs better burshing into the chassis.
‐poorer kingpin geometry
‐bigger dimension
‐creates negative amber angle as the suspention jounces
Is very common on front suspensions for medium‐to‐large cars for example:
‐Peugeot 407
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‐Mercedes Benz SL/SLS:
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Bibliography:
http://en.wikipedia.org/wiki/Double_wishbone_suspension
http://en.wikipedia.org/wiki/Short_long_arms_suspension
www.topspeed.com
www.caranddriver.com
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