| 飞机轮轴裂纹产生原因 |
| |
| 引用本文： | 李琪.飞机轮轴裂纹产生原因[J].西安航空技术高等专科学校学报,2012(1):21-24. |
| |
| 作者姓名： | 李琪 |
| |
| 作者单位： | 海军装备部;海军驻阎良地区航空军事代表室 |
| |
| 摘 要： | 目的查明飞机起落架轮轴成品表面镀铬部位存在裂纹缺陷;方法对飞机起落架轮轴试块进行外观检查、磁力探伤、物理性能测试、宏观分析、断口微观分析试验等;结果经过综合分析认为,起落架轮轴在存放一段时间,发现部分轮轴表面镀铬部位存在裂纹缺陷;结论产生裂纹缺陷的主要原因与镀铬层磨削过程产生的高水平残余拉应力有关,氢对其开裂有诱导作用。
|
| 关 键 词： | 起落架 裂纹 拉应力 飞机轮轴 |
On Reasons for the Generation of Aircraft Wheel Axle Cracks |
| |
| LI Qi.On Reasons for the Generation of Aircraft Wheel Axle Cracks[J].Journal of Xi'an Aerotechnical College,2012(1):21-24. |
| |
| Authors: | LI Qi |
| |
| Institution: | LI Qi(Aviation Military Office of the Navy to Yanliang Region,Xi’an 710089,China) |
| |
| Abstract: | Aim To discover reasons for cracks on galvanized areas of finished wheel axles of aircraft landing gear.Methods Conduct appearance check,magnetic flaw detection,physical performance test,macro-analysis,and fracture micro-analysis.Results It is considered after comprehensive analysis that wheel axles of landing gear may have crack flaws after having been placed for a long time.Conclusion The major reason for crack flaw is the high-level residual tension stress in the grinding process of galvanized layer.Hydrogen may lead to cracks. |
| |
| Keywords: | landing gear crack tension stress aircraft wheel |
| 本文献已被 CNKI 等数据库收录！ |
