EH系统油动机螺栓断裂分析  

FRACTURE ANALYSIS OF A BOLT IN HYDRAULIC-DRIVEN MACHINE IN AN ELECTRICAL-HYDRAULIC SYSTEM

作　　者：杨振国[1] 吴连生[1] 宗祥福[1] 戚国水 张建龙[2] 

机构地区：[1]复旦大学材料科学系,上海200433 [2]浙江嘉兴发电有限责任公司,嘉兴314201

出　　处：《理化检验（物理分册）》2001年第11期489-492,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用宏、微观检验方法对电液压系统油动机的断裂螺栓进行了分析。确认螺栓机加工不当引起疲劳裂纹的萌生及扩展 ,加之螺栓受力不均匀加速了疲劳断裂过程。A fracture analysis for a bolt of a hydraulic driven machine in an electrical hydraulic system was made by metallographic and fractrographic examination. The results showed that manufacturing defects of the bolt resulted in initiation and propagation of fatigue crack, and uneven loading of the bolt speeded up failure process of fatigue fracture. Prevention measures for fatigue fracture of the bolt were proposed.

关 键 词：EH系统 油动机 螺栓 疲劳断裂 失效分析 电流压系统 预防措施 发电机组 汽轮机 电液压系统 

分 类 号：TM311[电气工程—电机]