Kaczmarczyk, S. (2017) Lift guide rail – counterweight/car - suspension systems under seismic excitations: the dynamic behaviour and protection measures. Lift and Escalator Symposium. 7 2052-7225.
| Item Type: | Article |
|---|---|
| Abstract: | Lift systems are susceptible to damage when building is subjected to strong earthquake motions. The counterweight - guide rail and car guide rail systems suffer from earthquake-induced vibrations. The most common mode of failure is the counterweight derailment. This paper reviews the dynamic phenomena and presents a model to study, to predict and to mitigate the effects of the seismic responses of guide rail – counterweight/ car – suspension systems. The application of a Tuned Mass Damper (TMD) is a convenient method to reduce the guide rail-counterweight/ car response and to control the system operating under seismic conditions. In the TMD arrangement vibrations of the counterweight/ car can be suppressed and the stresses in the guide rails reduced by the application of an auxiliary spring – damper - mass system attached to the main structure. In the counterweight system a part of the counterweight mass can be used as the auxiliary mass. The performance of the TMD can be improved by the application of an actuator force determined by a suitable feedback control algorithm. |
| Uncontrolled Keywords: | Guide rail, counterweight/car, seismic excitation, dynamic response, tuned mass damper |
| Creators: | Kaczmarczyk, Stefan |
| Editors: | Kaczmarczyk, Stefan and Peters, Richard |
| Faculties, Divisions and Institutes: | Faculties > Faculty of Arts, Science & Technology > Engineering |
| Date: | 20 September 2017 |
| Date Type: | Publication |
| Journal or Publication Title: | Lift and Escalator Symposium |
| Volume: | 7 |
| Number of Pages: | 9 |
| Language: | English |
| ISSN: | 2052-7225 |
| Status: | Published / Disseminated |
| Refereed: | Yes |
| URI: | http://nectar.northampton.ac.uk/id/eprint/10662 |
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