【摘要】 在分析外物与叶片间的运动态势后，提出压气机叶片外物损伤模拟的撞击能量当量法，即使得摆锤的势能与外物撞击叶片时可能达到的动能相等。据此，设计并制作了摆锤装置，并实验观察到钛制压气机叶片损伤形态与撞击能量间的变化关系，即随着撞击能量的增加，损伤形态产生的顺序为：压痕→突缘→裂纹→突缘呈４５°剪切破坏。这与外场收集到的叶片的前缘损伤形态一致。同时，采用ＴＣ４压气机叶片进行了相应的高周疲劳试验，验证了方法的正确性。本文方法为研究压气机叶片外物损伤提供了良好的手段。更多还原

【Abstract】 Based on the analysis of the motion state of foreign objects to compressor blades, the impact energy equivalent method is suggested for the simulation of foreign objects to compressor blades in which the potential energy of the hammer and the kinetic energy of the foreign objects to the blades is equivalent. Moreover, a hammer set is designed and manufactured. The relation between the damage pattern and the impact energy by experiments is observed. With the increasing of the impact energy, the damage pattern appeared in order as dent→flange→crack→flange shearing rupturing at 45° which is as same as the damage pattern in the leading edge of the blade obtained in out field. Meanwhile, the corresponding high cycles fatigue tests on TC4 compressor blades are done to verify the validity of method. It points out that the method suggested is good for the investigation for foreign objects damage to compressor blades.更多还原