Page 36 - 《摩擦学学报》2020年第3期

302 摩 擦 学 学 报 第 40 卷

[7]
method , and the parameters remain unchanged except the surface of the friction lining can be effectively
for the parameters discussed in the calculation. The reduced.
geometrical parameters of the friction lining are r =
o
5.70
140 mm, r =115 mm, h =1μm, h =1 μm, n =12, n =360,
p
r
i
0
c
γ=2, S =22%. Physical parameters are p =0.1 MPa, 5.65
p
a
−5
μ=1.8×10 Pa·s, ω=19.1 rad/s, β=60°.
Load/N 5.60
3.1 Influence of the slenderness ratio on the load
capacity
Fig.5 shows the effect of slenderness ratio of the 5.55
elliptical texture on the load capacity of the gas film. It
can be seen from Fig.5, the greater the slenderness ratio 5.50
0 15 30 45 60 75 90
of the elliptical texture, the greater the load capacity of Inclination angle/(°)
the gas film. It can be seen that under the condition of Fig. 6 The influence of inclination angle on the load capacity

other parameters being constant, the load capacity of the
3.3 Influence of the texture depth on the load
gas film can be increased with the increase of the
capacity
slenderness ratio of the elliptical texture. So the
clearance of the friction surface can also become large. Fig.7 shows the effect of micro-elliptical texture
Thereby it is effective to reduce the friction and wear of depth on the load capacity of gas film. From Fig.7, it can
the friction surface by increasing the slenderness ratio of be seen that the load capacity of gas film increases and
the elliptical texture. then decreases with the increase of elliptical texture
depth, and finally tends to a constant value. When the

5.70
depth of elliptical texture is 1 μm, the load capacity of
gas film is the largest. The result shows that the texture
5.65
depth can be designed to 1 μm when designing friction
Load/N 5.60 lining with elliptical texture, which can play a very good

anti-wear effect. If the micro-elliptical texture is too
5.55 deep or too shallow, the anti-wear effect will be affected.

5.70
5.50
1.0 1.5 2.0 2.5 3.0
Slenderness ratio
5.65
Fig. 5 Effect of slenderness ratio on the load capacity

3.2 The influence of the inclination angle on load Load/N 5.60
capacity
5.55
Fig.6 shows the influence of micro-ellipse texture
inclination angle on the load capacity of gas film. It can
5.50
0 1 2 3 4 5
be seen from Fig.6 that the load capacity of the film Depth/μm
increases and then decreases with the increase of the
Fig. 7 Effect of texture depth on the load capacity
inclination angle of elliptical texture. The results show
that there is an optimal value of the inclination angle of 3.4 Influence of the clearance on the load
the elliptic texture, which can maximize the load capacity
capacity. In the model discussed, the optimal value is Fig.8 shows the influence of the clearance on the
45°, and it also shows that when the inclination angle of load capacity of the gas film. It is shown from Fig.8 that
the micro-ellipse texture is 45°, the friction and wear on the load capacity of the gas film decreases with the