掘进机回转台疲劳寿命预测及影响因素研究
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田立勇,张佳豪,于宁,于晓涵,张硕
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Study on fatigue life prediction and influencing factors of roadheader rotary platform
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Liyong TIAN,Jiahao ZHANG,Ning YU,Xiaohan YU,Shuo ZHANG
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| 表4 掘进机服役参数抽样方案及回转台疲劳寿命仿真结果 |
| Table 4 Sampling scheme of roadheader service parameters and fatigue life simulation results of rotary platform |
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| 组别 | 服役参数 | 最大应力循环数N/次 |
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| n/(r/min) | v/(m/min) | ω/(°) |
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| 1 | 54.4 | 1.48 | 41.3 | 1.50105 | | 2 | 47.4 | 1.45 | 0.5 | 9.54104 | | 3 | 40.6 | 1.48 | -17.5 | 2.17104 | | 4 | 43.7 | 1.32 | 20.6 | 1.20106 | | 5 | 43.9 | 1.17 | 9.0 | 4.58106 | | 6 | 51.8 | 1.47 | 31.9 | 2.93105 | | 7 | 54.1 | 1.36 | 7.0 | 3.90106 | | 8 | 48.0 | 1.21 | -3.4 | 4.60106 | | 9 | 50.8 | 1.42 | -7.9 | 2.19106 | | 10 | 36.2 | 1.36 | 37.9 | 1.28105 | | 11 | 52.6 | 1.41 | 24.1 | 5.63105 | | 12 | 42.5 | 1.33 | 16.7 | 7.29105 | | 13 | 36.6 | 1.26 | -13.9 | 2.44106 | | 14 | 40.2 | 1.00 | 29.9 | 4.88106 | | 15 | 42.6 | 1.21 | -2.9 | 3.39106 |
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