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1 – 2 of 2Benedikt Schmülling and Kay Hameyer
The purpose of this paper is to describe the derivation of an adjustment directive for the non‐linear and coupled forces of a high‐comfort elevator guiding system based on…
Abstract
Purpose
The purpose of this paper is to describe the derivation of an adjustment directive for the non‐linear and coupled forces of a high‐comfort elevator guiding system based on so‐called electromagnetic ω‐actuators.
Design/methodology/approach
The derivation of the adjustment directive contains a coordinate transformation from local forces and torques to global quantities.
Findings
It is demonstrated that the derived system is able to operate the guiding system of the elevator car. Measurement results show a well running system in face of several mutual influences on the actuating forces.
Practical implications
The results presented offer the opportunity to increase the riding comfort and decrease the deterioration of high‐speed elevator systems. It is possible to apply the proposed system to ropeless elevators and to conventional elevator systems as well.
Originality/value
The methods developed and proved in this paper grant an effective way to control magnetically levitated systems with complex actuator topologies.
Details
Keywords
Benedikt Schmülling, Marc Leßmann, Björn Riemer and Kay Hameyer
A fundamental disadvantage of three‐dimensional finite element (FE) simulations is high computational cost when compared to two‐dimensional models. The purpose of this paper is to…
Abstract
Purpose
A fundamental disadvantage of three‐dimensional finite element (FE) simulations is high computational cost when compared to two‐dimensional models. The purpose of this paper is to present an approach to minimize the computation time by achieving the same simulation accuracy.
Design/methodology/approach
The applied approach for avoiding high computational cost is the multi‐slice method. This paper presents the adoption of this method to a tubular linear motor.
Findings
It is demonstrated that the multi‐slice method is applicable for tubular linear motors. Furthermore, the number of slices and thereby computation time is minimized at the same accuracy of the simulation results.
Practical implications
The results of this paper offer a faster computation of skewed linear motors. At this juncture, the results are independent from the deployed FE solver.
Originality/value
The methods developed and proved permit a faster and more accurate design of tubular linear motors.
Details