船舶柴油机曲轴裂纹的有限元模态分析  

Finite element modality analysis on the crack of ship diesel engine crankshaft

作　　者：赵国文[1] 赵启元[1] 蔡振雄[1] 陈景锋[1] 

机构地区：[1]集美大学轮机工程学院,福建厦门361021

出　　处：《舰船科学技术》2008年第3期148-151,共4页Ship Science and Technology

基　　金：福建省教育厅基金资助项目(JA05292)

摘　　要：针对曲轴在实际使用过程中,经常发生由于疲劳裂纹而引起的断裂事故。以机械振动模态理论为指导,通过CAXA建立曲轴模型,导入ANSYS进行模态分析,研究曲轴含裂纹前后两种状态下的动力学特性,为曲轴裂纹的识别提供了判据依据。In view of the crankshaft in the actual use process, frequently happen the break accident which causes as a result of the fatigue crack, the paper takes the mechanical vibrations modality theory as the instruction,through the CAXA software establishment crankshaft model,inducts ANSYS system to carry on the modality analysis, studies the dynamics characteristics of crankshaft including and excluding the crack, offers the criterion basis to discern the crack in the crankshafts.

关 键 词：曲轴 裂纹 ANSYS CAXA 

分 类 号：TH122[机械工程—机械设计及理论]