Page 122 - 《摩擦学学报》2020年第6期

第 6 期 袁伟, 等: 高频循环载荷下球面滑动副摩擦学特征研究 805

10
5
D1 0
−5
−10
0 50 100 150 150 250
10
5 Local pulsation Obviously oscillating
D5 0
−5
−10
0 50 100 150 150 250
10
5 Running-in duration
A5 0
−5
−10
0 50 100 150 150 250
Time/min
(a) Test1
50

D1 0

−50
0 10 20 30 40 50 60 70 80 90 100
40
High amplitude pulsation
20 Continuous lnfluence
D5
0
−20
0 10 20 30 40 50 60 70 80 90 100
150
Marked rise
100
A5
50 Sharp
deterioration
0
0 10 20 30 40 50 60 70 80 90 100
Time/min
(b) Test2

Fig. 5 Friction force signal components
图 5 摩擦力信号成分

Side flowing
Plastic deformation
Fatigue
Side flowing
material

Plowing groove

100 μm 100 μm
Plowing

(a) Test1 (b) Test2

Fig. 6 SEM micrographs of the washer wear scars
图 6 垫片磨痕形貌的SEM照片