BEIJING -- China's domestically developed, world's largest-diameter high-speed-rail shield tunneling machine "Linghang" surpassed the 10,000-meter mark on Tuesday, leaving just 1,000 meters to reach ...
Abstract: High-speed permanent magnet synchronous machine (HSPMSM) has been widely used in high speed direct-drive applications due to its high power density and high efficiency. However, the low ...
Abstract: This paper deals with a positioning speed and precision control system for the assembly of segments of a shield tunneling machine. First, we design a six degrees of freedom segment erector ...
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