2017 Volume 25 Issue 2 Pages 106-111
High-speed and long-distance elevator systems have a serious issue that a large impact force from an emergency stop device injures the passengers in an elevator cage during the emergency stoppage. Therefore, we focused on the safety of the passengers in an elevator cage and proposed a new emergency stop device that consists of a spring and a magnetorheological fluid damper having the variable damping coefficient by a controlled magnetic field. In this paper, we would like to introduce our test installation that consists of the spring, the magnetorheological fluid damper, sensors, a digital controller with LabVIEW and a linear actuator for simulating the deceleration of the emergency stop device. Additionally, we evaluate the fundamental performances of our proposed device that was measured by using the magnetorheological fluid damper as a passive mode.
