摘要
铁路运输在当今的大宗货物运输中起着重要作用。敞车车体是货车的主要组成部件,所以对其进行强度和可靠性评估就显得尤为重要。对敞车车体进行了有限元建模,根据TB/T 1335—1996标准确定载荷工况,通过ANSYS对其进行了不同工况下的静强度与自由模态计算;基于ANSYS/PDS模块,利用蒙特卡罗法对车体等效应力最大工况进行了静强度可靠性及灵敏度分析。结果表明:车体的静强度指标满足许用要求;模型在频域上表现正常;许用应力对其静强度的可靠性影响最大。
Railway transportation plays an important role in the transportation of bulk goods nowadays.The car body is the main component of the truck,so it is very important to evaluate its strength and reliability.The finite element model of the open car body is carried out and the load condition is determined according to TB/T 1335—1996 standard,the static strength and free mode under different working conditions are calculated by ANSYS;Based on ANSYS/PDS module,Monte Carlo method is used to analyze the reliability and sensitivity of static strength of the vehicle body under the condition of maximum equivalent stress.The results show that the static strength index of the car body meets the allowable requirement,the model is normal in frequency domain,and the allowable stress has the greatest influence on the reliability of the static strength.
作者
马思群
孙雅琪
李健
苏航
王涛涛
Ma Siqun;Sun Yaqi;Li Jian;Su Hang;Wang Taotao(School of Traffic and Transportation Engineering, Dalian Jiaotong University, Liaoning Dalian, 116028, China;Network Information Center, Dalian Jiaotong University, Liaoning Dalian, 116028, China)
出处
《机械设计与制造工程》
2021年第7期15-18,共4页
Machine Design and Manufacturing Engineering
基金
国家重点研发计划资助项目(2016YFB1200505)
大连市科技创新基金资助项目(2020JJ27FZ126)。
关键词
C70车体
可靠性
模态分析
蒙特卡罗法
灵敏度分析
C70 car body
reliability
modal analysis
Monte Carlo method
sensitivity analysis
