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采用电磁涡流激振的振动疲劳试验，对ＴＣ４材料制成的平板叶片受外物损伤后的剩余振动疲劳寿命进行了研究。结果表明，叶片的外物损伤程度取决于撞击能量Ｅ和几何标度Ｓ，对于一定的叶片，存在不影响疲劳寿命的极限损伤。对叶片损伤处进行修复和适当减小叶片振动应力水平是提高叶片抗外物损伤能力的的有效途径。通过钢钛叶片试验分析表明，由于设计叶片稳态应力水平通常以抗拉强度为参考基点，那么钢制叶片的疲劳强度的富裕程度相对要高些。
Vibration fatigue test of electromagnetic eddy current vibration was used to study the residual vibration fatigue life of flat blade made of TC4 material subject to foreign body damage. The results show that the degree of damage to the foreign body of the blade depends on the impact energy E and the geometric scale S. For certain blades, there is an ultimate damage that does not affect the fatigue life. It is an effective way to repair the blade damage and reduce the blade vibration stress properly. Steel-titanium blade test analysis shows that the fatigue strength of the steel blade is relatively higher due to the steady-state stress level of the blade is usually taken as the reference point.