| 东风-12型旋耕机刀轴疲劳寿命分析 |
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| 引用本文： | 李明喜.东风-12型旋耕机刀轴疲劳寿命分析[J].河南科技大学学报(自然科学版),2000,21(4):6-9. |
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| 作者姓名： | 李明喜 |
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| 作者单位： | 黄石高等专科学校,科研处,湖北,黄石,435003 |
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| 摘 要： | 讨论了构件在复杂载荷作用下其疲劳寿命的估算问题和根据线性累积损伤理论 ,通过引入当量载荷推导出构件在弯扭载荷作用下的疲劳寿命估算式 ,并利用刀轴弯扭载荷谱估算了刀轴的疲劳寿命 ,为刀轴的改进设计提供了理论依据。
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| 关 键 词： | 旋转耕耘机 载荷 疲劳寿命 弯曲 扭转载荷 刀体 |
| 修稿时间： | 2000－01－20 |
Fatigue Life Prediction of the Rotor Shaft of Dongfeng-12 Rotary Tiller |
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| LI Ming-Xi.Fatigue Life Prediction of the Rotor Shaft of Dongfeng-12 Rotary Tiller[J].Journal of Henan University of Science & Technology:Natural Science,2000,21(4):6-9. |
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| Authors: | LI Ming-Xi |
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| Abstract: | The fatigue life estimated value of metallic structural member under the action of compound loads was discussed in this paper. Based on the linear accumulative damage theory , by introducing equivalent load, the fatigue life estimated formula of structural member under the action of bending and torsional loads was derived. Using the bending and torsional loads spectrum the fatigue life of knife shaft was estimated. The estimated formula provided theoretical basis for design improvement of knife shaft. |
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| Keywords: | Rotary plow Loads Fatigue life Bending Torsional load Cutter bodies |
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