Acceleration Feedback-Based Active and Semi-Active Seismic Response Control of Rail-Counterweight Systems of Elevators

Singh, Rildova; Singh, Mahendra P.

Acceleration Feedback-Based Active and Semi-Active Seismic Response Control of Rail-Counterweight Systems of Elevators

dc.contributor.author	Singh, Rildova	en
dc.contributor.author	Singh, Mahendra P.	en
dc.contributor.department	Biomedical Engineering and Mechanics	en
dc.date.accessioned	2017-09-18T10:07:42Z	en
dc.date.available	2017-09-18T10:07:42Z	en
dc.date.issued	2005-01-01	en
dc.date.updated	2017-09-18T10:07:42Z	en
dc.description.abstract	Based on the observations in the past earthquake events, the traction elevators in buildings are known to be vulnerable to earthquake induced ground motions. Among several components of an elevator, the counterweight being heaviest is also known to be more susceptible than others. The inertial effects of the counterweight can overstress the guide rails on which it moves. Here we investigate to use the well-known acceleration feedback-based active and semi-active control methods to reduce stresses in the rails. The only way a control action can be applied to a moving counterweight-rail system is through a mass damper placed in the plane of the counterweight. For this, a part of the counterweight mass can be configured as a mass damper attached to a small actuator for an active scheme or to a magneto-rheological damper for a semi-active scheme. A comprehensive numerical study is conducted to evaluate the effectiveness of the proposed configuration of control system. It is observed that the two control schemes are effective in reducing the stress response by about 20 to 25% and improve the system fragility over a good range of seismic intensities.	en
dc.description.version	Published version	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	Rildova and M.P. Singh, “Acceleration Feedback-Based Active and Semi-Active Seismic Response Control of Rail-Counterweight Systems of Elevators,” Shock and Vibration, vol. 12, no. 6, pp. 435-448, 2005. doi:10.1155/2005/130907	en
dc.identifier.doi	https://doi.org/10.1155/2005/130907	en
dc.identifier.uri	http://hdl.handle.net/10919/79087	en
dc.language.iso	en	en
dc.publisher	Hindawi	en
dc.rights	Creative Commons Attribution 4.0 International	en
dc.rights.holder	Copyright © 2005 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.	en
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	en
dc.title	Acceleration Feedback-Based Active and Semi-Active Seismic Response Control of Rail-Counterweight Systems of Elevators	en
dc.title.serial	Shock and Vibration	en
dc.type	Article - Refereed	en
dc.type.dcmitype	Text	en