Meet our team

Ph.D. candidate, Sep. 2011-presentSection of Road and Railway Engineering, Department of Structural EngineeringDelft University of Technology (TUD), the Netherlands 

      • Research topic: Optimazition of track transition zones
  
      • Lecturer and teachering assitant: CIE4874 Elements of Railway Engineering (Graduate course); CT3255 Bend and Break Railbouw (Undergraduate course)
 Master of Science Railway Engineering, Sep. 2010-Jun.2012School of Civil Engineering, Beijing Jiaotong University (BJTU), Beijing, China 
      • Construction Monitoring of Incremental Launched Bridge of Tianjin - Qinhuangdao Passenger Dedicated Line
  
      • Study on Mechanical Characteristics of Switches on the Long Slope of High Speed Rail (my diploma project)
  
      • Computer Aided Design for Anti-seismic Core Brace in Steel Structure (National Student Innovation Experience Program)
 Middle school high school, Sep. 2000-Jun. 2006Northeast Yucai School, Shenyang, China

          • Track transition zones
  
          • Railway engineering
  
          • Numerical simulation
  
          • Finite element analysis
  
          • AutoCAD
 

Optimisation of Track Transitions on High Speed Lines

Transition introduces discontinuity in vertical stiffness of the rail which results in increase of the dynamic forces and deterioration of track geometry due to track settlement on the embankment side. The track maintenance costs in the transition zones are consequently increasing. This problem becomes more severe in case of high speed lines. The project aims in finding measures for both prevention and correction of the track geometry deterioration in the track transition zones. The dynamic interaction between railway vehicle and train in the transition will be analysed numerically using 2D (DARTS) and 3D (Ansys LS-DYNA) finite element models. Special attention will be given to modelling of ballast settlement behavior and long term effect. The 2D model is relatively fast and allows analysing the dynamic behavior of various design solutions, whereas the 3D model gets the insights on the ballast degradation. The field observations and measurements will be performed to understand the behaviour of track transition zones as well. The measurement tool is VGS (Video gauge system), which allowing recording the displacement of track components. Using the numerical models and field measurements better understanding of the dynamic processes in transition zones will be gained. Based on that knowledge new track designs and maintenance procedures for transition zones will be developed. Design improvement will be achieved by optimising the geometrical and mechanical properties of various track solutions for the transition zones. The optimization will be performed using the modern numerical optimisation method called the Multipoint Approximation Method. The method was successfully used for various structural optimization problems.

Organizing Netherlands-China summer school, Jun. 2015Arranged the schedule of trip which contained both academic visits and sightseeing in Beijing and Shanghai. In addition, I was responsible for leading the whole group (30 people), choosing restaurants and activates as well as translating.Leading visit groups from China, 2013-2014Planned the academic activities which included applying report sites and contacting with companies, such as a workshop and a visit in Struckton in Utrecht, a visit in Giethoo and a shopping tour in the design outlet in Roermond.Serving 2008 Beijing Olympic Games, Aug. - Sep. 2008Responsible for welcoming spectators at the main entrance of stadiums for archery, tennis and hockey and showing them the shortest accesses spectators wanted to go.

Haoyu Wang, MSc

PhD Researcher

+31 (0) 15 278 23 08
H.Wang-1@tudelft.nl
Building: 23, room 1.54

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