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A method for constructing an installation accuracy control system for ultra-high-speed maglev supports considering
Hongji Xu1, Xuefeng Yang2, Hang Luo1
1Faculty of Geosciences and Engineering, Southwest Jiaotong University, Chengdu City, 611756, China.
Scientific Reports
|June 11, 2026
Summary
This study develops a new accuracy control theory for installing ultra-high-speed maglev vacuum-tube supports. The proposed method ensures precise track smoothness and airtightness for advanced transportation systems.
Area of Science:
- Engineering
- Metrology
- Transportation Systems
Background:
- Ultra-high-speed maglev vacuum-tube systems require extreme measurement accuracy for support installations.
- Current lack of systematic accuracy control theory hinders reliable engineering implementation of these critical supports.
Purpose of the Study:
- To establish a systematic accuracy control theory for installation measurements of ultra-high-speed maglev vacuum-tube supports.
- To ensure track smoothness and tube airtightness for advanced transportation systems.
Main Methods:
- Proposed a "reverse" accuracy allocation strategy starting from support design parameters.
- Integrated error propagation, Least Squares Collocation theory, and virtual observation simulations.
- Developed a 3D free-station adjustment model for total stations incorporating prior accuracy.
Main Results:
- Established a complete accuracy transfer chain from design to control network precision.
- Revealed spatial distribution characteristics of station-setting accuracy through simulations.
- Validated the methodology's feasibility and applicability via case studies.
Conclusions:
- The developed accuracy derivation system provides a complete technical pathway for support installation measurements in ultra-high-speed maglev systems.
- Offers a reference for standardized, theory-driven application of precision measurement technologies in major engineering projects.
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