Research Article
Analysis and Optimization of Static Contact Characteristics of Heavy-Duty Tracked Vehicle Rollers
Table 2
Comparison of Hertz contact theory and finite-element simulation results.
| | Parameter | 400 (kN) | 800 (kN) | 1200 (kN) | 1600 (kN) | 2000 (kN) |
| | Hertz theoretical value (MPa) | 1107 | 1395 | 1596 | 1757 | 1893 | | Contact stress simulation value (MPa) | 1020 | 1300 | 1500 | 1670 | 1800 | | Equivalent stress simulation value (MPa) | 634 | 807 | 932 | 1040 | 1110 | | Error between equivalent stress and theoretical value | 7.85% | 6.81% | 6.01% | 4.95% | 4.91% | | Distance between equivalent stress point and contact point (mm) | 6.555 | 8.009 | 8.000 | 9.804 | 9.796 |
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