Stress Analysis of Elevator Car Frame Bottom Support Using Finite Element Method
| dc.contributor.advisor | Daniel, Tilahun (PhD) | |
| dc.contributor.author | Amar, Yimam | |
| dc.date.accessioned | 2018-12-20T07:09:45Z | |
| dc.date.accessioned | 2023-11-18T06:29:05Z | |
| dc.date.available | 2018-12-20T07:09:45Z | |
| dc.date.available | 2023-11-18T06:29:05Z | |
| dc.date.issued | 2017-10 | |
| dc.description.abstract | Elevator is a mechatronic system used to move passengers and goods safely, swift and comfortable in high-rise buildings. The central and most visible component of an elevator is the supporting elevator car frame. The supporting elevator car frame is the structural part of the car and holds the platform and the cab that carries the passengers. The supporting elevator car frame structure consists of the upper crosshead beam, two vertical uprights (stiles) joining upper and lower members, and lower safety plank and provides the supporting structure for the car. The main objective of this study is stress analysis of elevator car frame bottom support using FEM. The study covers the mathematical modeling, find out the effect of stresses in different parameters of shape, and stress analysis by considering dynamic loading condition, the performance strength weight ratio supporting elevator car frame structure using FEM and comparison of stress value with stiffeners and without stiffeners of beam. The 3D modeling of the assembly has been carried out on SOLIDWORK 16 and after the assembly is accomplished on solid work, it has been exported to ANSYS R16. During the analysis of lower beam structure behavior in ANSYS software, the parameters used are vertical load, nominal velocity and gravitational acceleration. From ANSYS software simulation result, when the elevator is in normal running and mechanical break is used, the total deformation, equivalent vonmises stress and equivalent elastic strain and the stress value of the bottom support C channel beam due to force applied have been compared. After stress analysis from ANSYS result, shifting the stress concentration point and optimize the strength weight ratio of elevating car frame structure. It has been observed that the web opening longitudinal stiffeners enable a better stress redistribution around the opening region contributing for an increase of the beams ultimate load carrying capacity. The bottom channel web opening supporter beam is 2 % weight reduction in total mass channel beam and from analytical result, it has been observed that we can improve 13.2% strength weight ratio than the current solid channel beam for the same materiel. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/15202 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | AAU | en_US |
| dc.subject | stress analysis | en_US |
| dc.subject | web opening C channel beam | en_US |
| dc.subject | strength weight ratio | en_US |
| dc.subject | ANSYS16 | en_US |
| dc.title | Stress Analysis of Elevator Car Frame Bottom Support Using Finite Element Method | en_US |
| dc.type | Thesis | en_US |