APPLICATI S r eccls Tandem bike customized to team riders FOR
CYCLISTS
who
to ride comfortably a tandem
bicycle
lors the carbon frame’s
want
USA,
has
in pairs,
ZXT
tandem,
design
tai-
fibrelepoxy
geometry
for
both
developed
fabricated dent,
by company
Mark
turing
Enders,
with primary
the ‘steerer’ on the front seat.
the main
Science
Arts
of Ogden,
and Utah,
divided
the
lar-shaped
and
weight
presiand fea-
a monocoque
the ‘stoker’ on the rear seat and Composite
designed
frame
load bearing
beam
rather
among
than
tubes
lugs as in traditional
in and
triangu-
frames. of the
22 kg; when Enders 79-83
fully outfitted,
kg. The ZXT frame
is
USE
Zytel*
glass reinforced
(PA) for several com-
tailored
for optimum
perfor-
to the arm,
leg and
ponents
of
maker
Dolmar’s
torso
length
of each rider in
the tandem
pair. Frame
uses
dry,
12K carbon resin
GPa
reduced
3K
previous
fibre
with
the
8 to 20 plies. The high
handle,
designers
and bottom
an impact
stress area at the cen-
ter of the main
beam.
Brake
fibre the
grinder’s moulded
enhance
uses
Algor
Inc,
Pennsylvania, ing finite determine
loads,
ution
stiff,”
Enders
so that
dampened.
obser-
road
bracket
from
is
is espe-
in the bot-
to focus
the crank
motion,”
com-
shock
Stiffness
cially important tom
mating
energy
into forward
halves
Composite
Dolmar’s of
metal.
The
that
The
use of reinforced vibration,
bishment
programme stations,
chosen
sheet moulding
pound
(SMC)
or panels pillars.
for its
Shell
has com-
for the exteri-
of its information Using
low
SMC
produced
firm
Astar,
parts
have dimensions
profile
by Spanish the
moulded of up
to 2 m x 2 m. Reinforced Plastics December 1998
approximately stations
in
a global
figure
12 500 petrol Europe
of 30 000-40
In coperation Science,
to determine
is confident
that
be a strong
candidate
Shell
requir-
included
an
appearance, maintenance
and a minimum ten years.
in petrol
stations took 18 months.
specifications
initial
project to the first
000 stations.
Design attractive
mrbishment
parts being installed
low costs
lifetime
of
future
SMC
Zarbock,
and
of con-
to cut down
and vibration.
The
power won
tool
will
standing
for
one at the Industrie
prizes
design,
Design SMC
includ-
location
and how
weight
optithe best
Shell
Alliance; tel: t 49-69-250922;
company
studies,
recently
projects.
Ursula
the
comprehensive
functionality,
shape
it
for App-
studies
of the re-
weight
with the
Corp
7%2-6753;
approval
plas-
to work
out
From
the
making
lied
in the region
ed
by
with
made
for the user
Fraunhofer
for
unwieldy.
tics is said to reduce
trols,
petrol
tank,
of die-cast
and
AS PART
involves
sheet
heavy
Shell chooses SMC for petrol station information panels programme
fuel was
carried
fm:+I,%Ol-629-
was
and
magnesium
mum
The
previous
tool
easier
are
housing cast
example,
ing motion
refur-
which
Arts and Science; tel: + l-%019945.
part, in two
together.
the
with.
he explains.
Mark Enders,
grip and the fuel
made
and
a
PA 6. The
moulded
model
is
are
73G30,
is one integrated
In
frame
the
housing
then welded
frame
ZXT
ves, “but also vertically pliant
to
deflections,
lowest
“The
laterally
includ-
analysis
stress distrib-
at the
of
in Zytel
injection
construction
with optimized weight.
Pittsburgh,
USA,
laminate
tank
glass
PA 6. All
parts
new hand
software
element
modified
glass reinforced
aerodynamics.
Enders
and
to
inte-
Dolmar’s
used Zytel73G30T,
other
routed
the frame
with
reinforced
and gear cables are internally within
by
double-bot-
grated
lowest
of its
model
ranges
with the
14
25%.
For
stress areas are the head tube
from
weight
metal
fuel tank
bracket,
tool
PC-73
tomed
which
poly-
is said to have
the
about
DuPont’s
power
grinder-cutter
impregnated
prior to lay-up, from
lam-
227
unidirectional
epoxy
of a global
of
mance
and
Composite biqcle madp for two.
THE amide
modulus
(right).
is 17-
says the ZXT weighs
inate
Carbon jbrelepoxy frame (lej) dejects less than titanium
Final
frame
Prize winning grinder-cutter uses Zytel
in
has
for out-
including Forum
Hannover,
Germany. DuPont
UK
http://www.kunststoffiueb.de/
+44-1442-218500;
rmcalliance
1442-21%646
Ltd;
tel:
fm:+44-