Numerical Analysis of Linear Elevator Structure Using Finite Element Method

Saba Othman,Farag Mohammed,Jamal Mohammed

doi:10.30684/etj.v39i9.2083

Abstract

In this work, the structure of the linear elevator prototype had been investigated numerically using finite element method. The linear motor structure parameters analyzed using Maxwell ANSYS. The time-stepping method depending on Maxwell equations be applied for analyzing and optimizing the magnetic and force characteristics. While the elevator structure parameters were analyzed using ANSYS workbench based on the principle of virtual work. The frame considered as clamped- clamped beam, and the base of the car considered as thin plate with small deflection. The analysis done with maximum applied load of 360 N at 1.5 safety factor. The results show the distribution of the magnetic lines, the flux density values plus the leakage flux inside the slots. The maximum Von-Mises stress and the deformations of the frame and plate at maximum load are acceptable and present save design. In which the maximum deflection of the thin plate not exceed (thickness/5) at maximum design load.

Highlights

An elevator is a mechatronic system used to move passengers and goods safely, swiftly, and comfortably in buildings [1]
The main objective of this study is to investigate the structural behavior of the linear elevator driven by Permanent magnet linear synchronous motor (PMLSM) using finite element method (FEM) with the help of ANSYS software
The analysis of motor structure parameters was performed using the commercial finite element package based on Maxwell ANSYS depending on Maxwell equations that ignored end windings due to using 2D model [8]

Summary

Introduction

An elevator is a mechatronic system used to move passengers and goods safely, swiftly, and comfortably in buildings [1]. The elevator car frame is an essential component as safety conditions must be taken into account. On this basis, several researchers focused on this aspect: Janovsky [2] discussed the stress-determining methods in individual frame parts of the car. A dynamic model was developed by Feng et al [6] according to the theory of solid body dynamics of the elevator car in 3-dimensions. They introduced the modeling and the power control for a high-speed elevator under horizontal vibrations.

Objectives

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Discussion

Conclusion