被动悬架资料(英文版)

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被动悬架资料(英文版)

5.3.1 Foreword
The modern automotive vehicle has come a long way since the days when just
being self propelled was enough to satisfy the vehicles driver. Improvement
in vehicular suspension， increased strength and durability of components， and
advances in wheel and tyre design and co nstruction have made large contributions
to riding comfort and driving safety.
On a summer day in 1904 a young man by the name of William Brush helped
bring about the modern vehicular suspension system. Driving his brother
Alansons Crestmobile ， Brush was rolling along too fast for the unpaved roads
of the day and went into a curve at 48 km/h (30 mph). The vehicles right front
wheel skittered onto the dirt shoulder and whammed into a deep rut. Almost
at once， the wheel started to shimmy viol ently. The undulations of the jarred right
front elliptic leaf spring had sent shock waves across the solid I-beam axle to the
left side of the vehicle. This set the entire front of the vehicle to vibrating
furiously. Brush was caught unawares and lost control. The vehicle crashed
through a barbed wire fence， hit a ditch and overturned in a cow pasture. Several
hours later young William fussed up to Alanson， whose demeanour switched from
stern to thoughtful， since he was trying to design a better automotive vehicle. That
vehicle， dubbed the Brush Two-Seat Runabout ， finally appeared in 1906.
It featured a revolutionary vehicular suspension that incorporated two innovations
never before assembled together: front coil springs and devices at each wheel that
dampened spring bounce - shock absorbers -- mounted on a flexible hickory axle.
Principally， conventional passive ABW AWA suspension (Fig. 5.9) refers to the
use of front and rear springs to suspend a vehicles frame， body， engine and
powertrain above the wheels [DAS 2006].