Pavement skid-resistant performance plays an important role in Expressway Safety. Due to the complexity of the state of contact between the pavement and tires as well as the complexity of the texture of asphalt pavement surface itself, existing research results cannot reveal the interaction mechanism between pavement and tires objectively. Refer to the first principle knowledge of tribology, fluid mechanics and solid-fluid coupling effects, tire/fluid/pavement contact models were built. Together with other lab and field tests, as well as the existing data, the influence of surface texture were discussed and summarized. Firstlythrough combining data from the real asphalt pavement, this research used the IFS (Iterated Function System) to achieve the simulation

sisterpurpleΜηχανική

24 Οκτ 2013 (πριν από 3 χρόνια και 5 μήνες)

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Pavement skid
-
resistant performance plays an important role in Expressway
S
afety. Due to the
complexity of the
state of
contact between the pavement and tires as well as the complexity of the
texture of
asphalt pavement surface itself, existing research re
sults cannot reveal
the
interaction
mechanism
between

pavement and tires objectively.
R
ef
er to
the first principle knowledge of
tribology,

fluid mechanics and solid
-
fluid coupling
effects
, tire/fluid/pavement

contact models
were
built
.

Together with other
lab and field test
s
, as well as

the existing data, the influence of
surface texture
were

discussed and summarized
.

First
ly

through

combining data from the real
asphalt pavement, this research use
d

the IFS

(
Iterated Function System
)

to achieve the simulatio
n
of
3
-
D
imensional

asphalt surface. The result can be input into ABAQUS directly

which can
provided data support for further research

on

c
ontact between
tire

and
asphalt

surface
.

Second
ly
,
the model for standard smooth tire was built and verified. The
valu
e
of tire
squat
under different
calculated in light of finite element software ABAQUS was compared with the
empirical value
.

Then, the adhesion coefficient was used as an index to evaluate asphalt pavement skid resistance

by
reference to the fluid mechanic
s and solid
-
fluid coupling principle
.

Finally, refer to solid
mechanics, fluid dynamics and fluid
-
structure interaction theory, the
tire/fluid/pavement

contact
model was established
by
using the finite element method (ABAQUS). The

skid
-
resistant
performance

of different pavements under wet condition

was

evaluated, which

provides a
theoretical basis for

improv
ing

road safety from the road surface.