Table 4 Experimental measurements and numerical results for c = 1 mm and Ra = 3.2
From: Contact Model of Revolute Joint with Clearance Based on Fractal Theory
Experiment no. | Measured initial velocity (m/s) | Measured contact force (N) | Theoretical contact force (N) | Relative error |
|---|---|---|---|---|
1 | 0.101 | 174.56 | 190.6 | 9.2% |
2 | 0.127 | 249.63 | 256.2 | 2.6% |
3 | 0.253 | 652.16 | 623.3 | − 4.4% |
4 | 0.262 | 624.69 | 651.8 | 4.3% |
5 | 0.297 | 746.77 | 766 | 2.6% |
6 | 0.305 | 822.75 | 792.8 | − 3.6% |
7 | 0.354 | 1044.31 | 959.2 | − 8.1% |
8 | 0.378 | 1011.05 | 1044.5 | 3.3% |
9 | 0.383 | 1084.9 | 1062.3 | − 2.1% |
10 | 0.391 | 1130.68 | 1090.9 | − 3.5% |
11 | 0.392 | 1036.99 | 1094.4 | 5.5% |
12 | 0.402 | 1197.2 | 1130.1 | − 5.6% |
13 | 0.419 | 1176.76 | 1190.7 | 1.2% |
14 | 0.423 | 1163.02 | 1204.9 | 3.6% |
15 | 0.448 | 1313.78 | 1297.7 | − 1.2% |
16 | 0.480 | 1448.97 | 1419.2 | − 2.1% |
17 | 0.484 | 1395.57 | 1434.5 | 2.8% |
18 | 0.499 | 1580.81 | 1491.5 | − 5.6% |
19 | 0.534 | 1752.62 | 1624.7 | − 7.3% |
20 | 0.556 | 1744.38 | 1709.5 | − 2.0% |
21 | 0.602 | 1909.18 | 1896.4 | − 0.7% |
22 | 0.619 | 1992.19 | 1965.7 | − 1.3% |
23 | 0.649 | 2171.33 | 2088 | − 3.8% |
24 | 0.735 | 2647.09 | 2443.3 | − 7.7% |
25 | 0.809 | 2629.39 | 2767.3 | 5.2% |
26 | 0.910 | 3074.65 | 3210.9 | 4.4% |
27 | 0.911 | 3275.15 | 3215.3 | − 1.8% |
28 | 0.925 | 3320.92 | 3276.7 | − 1.3% |
29 | 0.926 | 3533.94 | 3281.1 | − 7.2% |
30 | 0.930 | 3009.95 | 3298.7 | 9.6% |