| 构件打磨深度对疲劳寿命的影响 |
| |
| 引用本文： | 田秀云 杜洪增 邢晓莹. 构件打磨深度对疲劳寿命的影响[J]. 中国民航学院学报, 2004, 22(6): 26-29 |
| |
| 作者姓名： | 田秀云 杜洪增 邢晓莹 |
| |
| 作者单位： | 中国民用航空学院机电工程学院 天津300300(田秀云，杜洪增)，中国民用航空学院机电工程学院 天津300300(邢晓莹) |
| |
| 摘 要： | 按照飞机结构修理手册的规定,腐蚀损伤的允许打磨深度不超过构件厚度的10%。疲劳寿命计算和试验结果表明,从疲劳强度角度考虑,如果损伤部位修理不能利用原紧固件孔安装紧固件,并且又只能采用非对称铆接修理,则打磨深度在总厚度的10%～20%时,较合理的修理仍是通过打磨清除腐蚀,然后恢复涂层。
|
| 关 键 词： | 腐蚀损伤 结构修理 疲劳寿命 打磨 |
| 文章编号： | 1001-5000(2004)06-0026-04 |
| 修稿时间： | 2004-08-30 |
Impact of Grinding Depth on Fatigue Life |
| |
| TIAN Xiu-yun,DU Hong-zeng,XING Xiao-ying. Impact of Grinding Depth on Fatigue Life[J]. Journal of Civil Aviation University of China, 2004, 22(6): 26-29 |
| |
| Authors: | TIAN Xiu-yun DU Hong-zeng XING Xiao-ying |
| |
| Abstract: | According to stipulations contained in manuals for repairing,the grinding depth for removing of corrosions should not exceed 10 percents of the thickness of the component. The fatigue life experiment which is specified in this paper shows that, in consideration of the remaining strength of a fatigue part,if the repaired part can not be tightened with the original fastener, whereas it can be riveted asymmetrically to the same effect, and, in case the grinding depth is 10 to 20 percents of the thickness of the said part,it is still considerate to be rational to remove the corroded surface, before renewing a painted layer. |
| |
| Keywords: | corrosion damage structural repair fatigue life grinding depth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
