Supervisor of Master's Candidates
18. X.M. Deng, M.L. Yuan, X.J. Cao, X.H. Li. Polymerization of lactides and lactones, 8. Study on the ring-opening polymerization of 3-phenyl-e-caprolactone and 5-phenyl-e-caprolactone. Macromol. Chem. Phys., 202:2417-2424 (2001)
Impact Factor:1.323
DOI number:10.13465/j.cnki.jvs.2024.12.002
Affiliation of Author(s):西南交通大学
Journal:振动与冲击
Place of Publication:上海市
Funded by:四川省自然科学基金项目 (2022NSFSC1895)
Key Words:高速铁路；接触网；弹性吊索；应力载荷；疲劳仿真
Abstract:为研究弹性吊索的服役状态与疲劳寿命，对高铁接触网出现的弹性吊索断线现象进行调研并开展疲劳研究。基于武广高铁的线路设计参数构建了弓网动态仿真模型，对300 km/h速度下的弹性吊索振动状态进行分析。由于受电弓运行通过时对接触悬挂的抬升作用，弹性吊索主要沿竖直方向振动，并在线夹位置不断承受交变弯曲载荷。在UG软件中建立了弹性吊索绞线(1×7)及其线夹的实体模型并将其导入到LS-DYNA软件中进行了应力载荷计算；其应力集中位置位于弹性吊索与其线夹连接处。将应力历程数据导入到ANSYS nCode DesignLife软件中分析弹性吊索在指定载荷下的疲劳寿命。最后，根据Miner累积损伤原则计算了300 km/h运行速度下武广高铁弹性吊索的疲劳寿命为4.58×10⁶弓架次；当运行速度增加至350 km/h时，疲劳寿命为1.17×10⁶弓架次；当运行速度增加至400 km/h时，疲劳寿命为4.80×10⁵弓架次。
Co-author:刘继冬,chenjunqing,Jinfa Guan,韩峰,wujiqin
First Author:刘继冬
Indexed by:EI
Correspondence Author:Jinfa Guan
Document Code:JVS-2023-0922
Discipline:Engineering
First-Level Discipline:Transportation Engineering
Volume:43
Issue:12
Page Number:10-16
ISSN No.:1000-3835
Translation or Not:no
CN No.:31-1316/TU
Date of Publication:2024-06-04
Pre One:19. X.H. Li, X.M. Deng, and Z.T. Huang. In vitro protein release and degradation of poly-dl-lactide-poly(ethylene glycol) microspheres with entrapped human serum albumin: Quantitative evaluation of the factors involved in protein release phases. Pharm. Res., 18:117-124 (2001)
Next One:17. X.M. Deng, S.B. Zhou, X.H. Li, J. Zhao, M.L. Yuan. In vitro degradation and release profiles for poly-dl-lactide-poly(ethylene glycol) microspheres containing human serum albumin. J. Control. Release, 71:165-173 (2001)
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