Structural fatigue strength analysis of wheel for freight car base on axisymmetric model
-
摘要: 为了分析铁路货车车轮的疲劳强度, 建立了车轮轴对称模型, 根据国际铁路联盟标准UIC510-5/2003规定的计算载荷和载荷工况, 计算了车轮的疲劳强度, 用Goodman曲线对疲劳强度进行了评定。计算结果表明: 在紧急制动的热载荷作用下, 车轮辐板区域在制动70s时产生最大von_Mises应力; 在紧急制动的热载荷与机械载荷联合作用下, 车轮辐板区域在制动43s时产生最大von_Mises应力; 在曲线紧急制动载荷工况的计算载荷作用下, 车轮辐板区域的von_Mises应力最大; 车轮辐板疲劳强度满足要求。Abstract: In order to analyze the fatigue strength of wheel for railway freight car, an axisymmetric model was set up, the strength was computed according to the calculation load and load conditions of international railway union standards UIC510-5/2003, and the strength was assessed by using Goodman curve. Calculation result shows the maximum von_Mises stress appears on the spoke under the thermal load of emergency braking when the braking time is 70 s, the maximum von_Mises stress appears on the spoke under the thermal load and the mechanical load of emergency braking when the braking time is 43 s, the maximum von_Mises stress appears on the spoke under the calculation load of curvilinear emergency braking, and the fatigue strength of the spoke meets the relative requirement.
-
Key words:
- railway vehicle /
- wheel /
- axisymmetric structure /
- fatigue strength /
- non-axisymmetric load /
- coupled field /
- stress
-
[1] 米彩盈. 有限元法基础与铁道车辆结构分析[M]. 成都: 西南交通大学出版社, 2005. [2] 朱宜尧, 吴雷, 任立壮. 货车车轮辐板裂纹的原因及防范措施[J]. 铁道车辆, 2003, 41(11): 40-41. https://www.cnki.com.cn/Article/CJFDTOTAL-TDCL200311014.htmZHU Yi-yao, WU Lei, REN Li-zhuang. Causes and preventive measures of the freight car wheel spoke crack[J]. Rolling Stock, 2003, 41(11): 40-41. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDCL200311014.htm [3] UIC510-5/2003, technische zulassung von rädern[S]. [4] GARG V K, DUKKIPATI R V. Dynamics of Rail way Vehicle Systems[M]. Ottawa: Academic Press, 1984. [5] 刘云. 提速货车车轮温度场及热应力场的数值模拟[D]. 北京: 北京交通大学, 2004. [6] 钟斌, 罗双庆. 非轴对称载荷下轴对称问题的有限元分析[C]∥ANSYS公司北京代表处. ANSYS中国用户论文集. 北京: ANSYS公司北京代表处, 2004: 100-104. [7] FUOCO R, FERREIRA M, AZEVEDO C R F. Failure analysis of a cast steel rail way wheel[J]. Engineering Failure Analysis, 2004, 11(6): 817-828. doi: 10.1016/j.engfailanal.2004.03.004 [8] 刘会英, 王农. 提速货车车轮热负荷试验研究[J]. 铁道车辆, 2000, 38(4): 15-19. https://www.cnki.com.cn/Article/CJFDTOTAL-TDCL200004006.htmLI U Hui-ying, WANG Nong. Test and research on heat load on speed increased freight car wheels[J]. Rolling Stock, 2000, 38(4): 15-19. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDCL200004006.htm [9] 孙明昌, 曾京, 温泽峰. 弹性轮对的有限元分析[J]. 交通运输工程学报, 2002, 2(4): 38-42. http://transport.chd.edu.cn/article/id/200204008SUN Ming-chang, ZENGJing, WENZe-feng. Finite element analysis for resilient wheelset[J]. Journal of Traffic and Trans-portation Engineering, 2002, 2(4): 38-42. (in Chinese) http://transport.chd.edu.cn/article/id/200204008 [10] 米彩盈, 李芾. 高速动力车车轮强度分析的工程方法[J]. 内燃机车, 2005, 40(9): 11-13. https://www.cnki.com.cn/Article/CJFDTOTAL-LRJX200509005.htmMI Cai-ying, LI Fu. Project method of strength analysis about wheels of high-speed power car[J]. Diesel Locomo-tives, 2005, 40(9): 11-13. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-LRJX200509005.htm [11] 周张义, 米彩盈, 李芾. 基于静力子结构技术对轮轴接触下车轮的强度分析[J]. 内燃机车, 2006, 41(9): 16-18. https://www.cnki.com.cn/Article/CJFDTOTAL-LRJX200609005.htmZHOUZhang-yi, MI Cai-ying, LI Fu. Strength analysis of the wheel considering wheel-axle contact based on the static substructuring technology[J]. Diesel Locomotives, 2006, 41(9): 16-18. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-LRJX200609005.htm [12] 铁路常用材料p-S-N曲线及Goodman图册编委会. 铁路常用材料p-S-N曲线及Goodman图册[R]. 北京: 铁道部科学研究院, 1994. -
下载:
点击查看大图
图(7)
计量
- 文章访问数: 411
- HTML全文浏览量: 102
- PDF下载量: 545
- 被引次数: 0
