摘要
针对某V型船用柴油机高压油管在可靠性试验中出现的开裂故障,从故障件断口显微结构、金相组织、材料力学性能等方面进行分析,同时采用Abaqus软件对零件进行静强度计算、疲劳强度计算。结果表明:高压油管内的油压变化对油管的强度影响较大。根据失效分析和计算机辅助工程仿真结果提出改进方案。目前,改进方案已得到试验验证。
In response to the cracking failure observed in the high-pressure fuel pipe of a V-type Ma-rine diesel engine during reliability testing,an analysis was conducted from aspects including the micro-structure of the fracture surface,metallographic structure,and mechanical properties of the failed compo-nent.Modal analysis,static strength analysis,and fatigue strength analysis were performed using Abaqus software.The results indicated that fluctuations in fule pressure within the high-pressure fuel pipe significantly impacted its strength.Based on the failure analysis and computer aided engineering simulation results,an improved design was proposed and has been validated through testing.
作者
刘宁
柯建锋
曾志星
李杰
凌荧均
LIU Ning;KE JianFeng;ZENG ZhiXing;Li Jie;LING Yingjun(Guangxi Yuchai Marine and Genset Power Co.,Ltd.,Yulin 537005,Guangxi,China)
出处
《柴油机设计与制造》
2025年第4期39-43,共5页
Design and Manufacture of Diesel Engine
关键词
柴油机
高压油管
设计改进
静强度
疲劳强度
diesel engine
high-pressure fuel pipe
design improvement
static strength
fatigue strength
