Engineering
Braking Capacity Requirements of Elevators
Outlining existing problems in A17.1 and EN 81-20 by Guangchi Liang Modern elevator safety highly depends on the elevator braking capacity. Braking failure will lead to car overspeed or unintended...
Fulfilling the Potential of DD DCS
The double-deck destination-control system (DD DCS) combines two well-known approaches to boost morning up-peak traffic in office buildings and save building core space. This article describes the technical principles of...
Creep of Suspension Ropes
An examination of creep property (not to be confused with slippage) as it works on suspension ropes This article focuses on the creep property of suspension rope. It analyzes its...
Using Multiphase Drives as the Elevator Propulsion System
Separately exploring use of a six-phase inductive motor and six-phase matrix converter in effort to boost reliability and efficiency of elevator drives by Davoud Karbalaei, Amir Bahram Daraei and Hossein...
Encoder Position for PM Motors
How to troubleshoot and adjust the encoder to provide trouble-free operation by Tyler Pecha and Tony Heiser Permanent-magnet (PM) motors have become popular options in elevator applications over the years...
Escalator Truss Design
Numerical analysis of subsystems and passenger loads against the escalator truss in accordance with EN 115 is explained and demonstrated. Escalator trusses are manufactured for the installation of subsystems, such...
Application Research of Advanced Manufacturing Technology in Escalator Manufacturing
An overview of associated technology in China, the world’s biggest escalator manufacturing location, and Chinese manufacturer CST by Wang Qibing, Leng Yonggang and Lee Yu Along with the rapid development...
The Maximum Speed of Elevators
Furthering ideas on “How Fast Could the Fastest Elevators Be?” Elevators traveling over long vertical distances at high speeds must be considered impossible. This advantage has been reserved by the...
The Elevator Designs of Jeddah Tower
Designer of Jeddah Tower elevators outlines technology and in-depth planning going into the elevatoring of the future world’s tallest. When it is completed in 2018, the mixed-use Jeddah Tower (formerly...
Elevator Seismic Numerical Analysis
FEA modeling of MRL elevator behavior under seismic conditions following EN 81-77 by Dr. Pascal Rebillard and Frédéric Grimault Every year, at the worldwide level, the recorded number of earthquakes...
