一种客货共线道岔区钢轨廓形设计方法
By comparing and analyzing the dynamics model, the rail profile of the turnout area on the passenger and freight railway was designed, which solved the problem of inconsistent rail types in the turnout area, reduced the difficulty of design and maintenance, and improved the safety and operational quality of the railway turnout area.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA STATE RAILWAY GRP CO LTD
- Filing Date
- 2023-01-31
- Publication Date
- 2026-07-17
AI Technical Summary
In the turnout area of passenger and freight railways, the use of 60kg/m rail profile in the existing technology requires the setting of transition sections, which increases the difficulty and workload of design, laying and maintenance.
This paper provides a method for designing rail profiles in turnout areas of passenger and freight railway lines. By comparing and analyzing the wheel-rail contact geometry characteristics of the main type wheel tread and the 60N rail profile, a turnout model is established, and coupled dynamic analysis of the vehicle-turnout system is performed to determine the adaptability of the 60N rail profile in the turnout area. Based on safety, train stability, and friction index, the dynamic performance is compared, the wheel-rail contact point location and contact stress are predicted, the conditions of each section are marked, and the operation method is output.
It eliminates the transition of rail profiles before and after the turnout, standardizes rail types, improves train operation quality, reduces maintenance difficulty, and ensures the safety and reliability of the turnout, thus having significant economic and social benefits.
Smart Images
Figure CN116680769B_ABST