摘要
某款干混砂浆运输车上空压机支座螺栓孔开裂,导致螺栓容易被拉出。由于空压机结构的特殊性,空压机支座螺栓孔受到动载作用,这个动载难以在试验中直接得到。采用动力学仿真软件Adams,建立刚柔耦合模型,采用弹簧替代螺栓,对螺栓的受力进行仿真分析,最后得到螺栓孔的拉力,确定螺栓孔开裂的原因。结果表明:螺栓孔上的最大拉应力超过抗拉强度,从而导致螺栓孔开裂。
Bolt holes take place fracture on air compressor bearing of a dry mortar truck, it leads to bolt are easy to be pulled out. Because of the special structure of air compressor, air compressor bearing bolt holes are exerted on dynamic load, the dynamic load is difficult to directly get in the test. Uses the dynamics simulation software adams, the coupled model is set up, use spring replace bolts, to simulation analyze the stress of the bolt, Finally get the tensile force of the bolt holes, and determine the cause of the bolt holes occurred fracture. Results show that the maximum tensile stress on the bolt holes are more than tensile strength, resulting in bolt holes occurred fracture.
作者
刘迪辉
贺尧
LIU DiHui HE Yao(State Key Laboratory Of Advanced Design And Manufacturing For Vehicle Body, Hunan University, Changsha 410082, China)
出处
《机械强度》
CAS
CSCD
北大核心
2016年第5期1082-1086,共5页
Journal of Mechanical Strength
关键词
螺栓孔
动力学
螺栓
仿真
Bolt holes
Dynamic
Bolts
Simulation
