Abstract :
As buildings get taller, their elevators take up an ever larger fraction of their volume, reducing the amount of rentable space. At the same time, as suspension cables get longer, they run into strength and stability limitations. The author describes how the solution to both problems may well be one-shaft ropeless systems, with multiple cars in the same hoistway.<>
Keywords :
electric drives; lifts; linear motors; permanent magnet motors; synchronous motors; elevators; hoistway; linear synchronous PM motor drives; multiple cars; one-shaft ropeless systems; skyscrapers; stability; strength; suspension cables; volume; Buildings; Elevators; Floors; Footwear; Noise generators; Poles and towers; Rails; Shafts; Torque; Vehicle safety;
