FCE Distinguished Lecture on "Challenges on dynamics problem in Chinese high-speed railways"
High-speed railway has achieved rapid development in China in a very short period, along with many scientific and technological challenges. In this presentation, an overview is given on the development of high-speed railways in China, including the history of raising train speed and the current status of high-speed railways. Key challenges focusing on dynamics problems are discussed at the design and operation stages of Chinese high-speed railways, respectively. For example, how to determine the design parameters of plane curves and vertical profiles for different high speed lines without any design standard at the beginning of development of high-speed railway in China? How to evaluate and assess the running safety and ride comfort of high-speed trains passing through different types of bridges at the design stage? Some strategies for coping with the challenges are introduced on the basis of the speaker’s research work on railway system dynamics, and some application examples are provided to demonstrate their effectiveness in practical high-speed railway engineering.