By Ping Wang
High-speed turnouts, a key know-how for high-speed railways, have a very good effect at the secure and strong operating of high-speed trains. Design of High-Speed Railway Turnouts: concept and functions, comprehensively introduces the technical features and necessities of high-speed turnouts, together with layout theories and strategies of turnout structure geometry, wheel and rail kinfolk, tune stiffness, welded turnout, turnout conversion, turnout parts, and manufacture and laying applied sciences of turnouts.
Analyzing the operational difficulties of China’s high-speed turnout particularly, this publication discusses the regulate of constitution irregularity, country irregularity, geometrical irregularity and dynamic irregularity throughout the layout, manufacture, laying, and upkeep of turnouts. on the finish of this reference ebook, the writer offers high-speed turnouts administration equipment, upkeep criteria, trying out and tracking expertise, and upkeep know-how. Design of High-Speed Railway Turnouts: concept and Applications will allow railway technicians around the world to boost an in-depth wisdom of the layout, manufacture, laying, and upkeep know-how of high-speed turnouts.
- The first e-book on the planet to concentration explicitly on high-speed turnouts, together with layout, building, upkeep and administration of excessive pace turnouts
- Expounds the speculation of vehicle-turnout process coupling dynamics intimately, aligning this with numerous examples of computation, and examines the result of dynamic experiments which validate the theory
- Written via Ping Wang, who's famous as a number one researcher and major developer of high-speed turnouts in China
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Extra info for Design of High-Speed Railway Turnouts: Theory and Applications
The materials for HSR rails shall be of mature steel, consistent durability, pure quality, excellent welding quality, and adaptability to turnouts. The U71Mnk rails (tensile strength 880 MPa) are adopted for Chinese 350 km/h HSRs. Considering the needs of freight transport, U75V rails (tensile strength 980 MPa) are selected for 250 km/h HSRs. Turnout rails and section rails shall be of the same materials for ease of welding. The main lines of Chinese railways are mainly of 60 kg/m rails, along with some 50 and 75 kg/m rails.
Moreover, high-speed turnouts shall have high-tech performance, good economic efficiency, applicability, etc. [16,17]. 1 DESIGN CONDITIONS In designing a high-speed turnout, the running conditions, vehicle structure, technical requirements for tracks, and laying conditions shall be taken into account, and the requirements of different loads, temperatures, and laying foundation shall be met. Moreover, turnout design shall match with the technical conditions of the whole line . Design of High-Speed Railway Turnouts.
It is commonly used as it is easy to design, manufacture, lay, and maintain . 2). This curve type is generally used in small number turnouts with low speed in the diverging line, typically for a straight crossing. When it is used with curved switch rail, the radii of the transition lead curve and curved switch rail may be equal or unequal. The curve of the switch rail and the working surface of the stock rail may be in tangent, secant, or separated type. 4. This curve type is used mainly in turnouts for high speed in the diverging line, such as No.