Abstract
The drive system is a key component of an elevator installation that supplies energy into the system, coupling the car-rope and the counterweight-rope subsystems. However, it often becomes a source of excitation that is responsible for vibrations that compromise the car ride quality. In this paper a non-stationary distributed-parameter model describing vertical dynamics of an elevator system that accommodates the drive machine, the car, the counterweight and the suspension ropes has been developed. The model is used to analyze the influence of the drive machine on the elevator system performance. The dynamic behaviour is described by a set of partial differential equations. Those are discretized by expanding the vertical displacements in terms of the linear mode shapes to obtain a set of ordinary differential equations. The mode shapes correspond to a system composed of three masses constrained by a suspension rope. The discrete model is then solved numerically in Matlab-Simulink using parameters of a real installation. The numerical simulation results predict transient resonance phenomena in the system.
| Original language | English |
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| Title of host publication | Proceedings of the Symposium on the Mechanics of Slender Structure (MoSS 2010) |
| Pages | 1-10 |
| Number of pages | 10 |
| Publication status | Published - 24 Jul 2010 |
| Event | Symposium on the Mechanics of Slender Structures (MoSS 2010) - University of Mondragon, San Sebastian, Spain Duration: 21 Jul 2010 → 23 Jul 2010 |
Conference
| Conference | Symposium on the Mechanics of Slender Structures (MoSS 2010) |
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| Country/Territory | Spain |
| City | San Sebastian |
| Period | 21/07/10 → 23/07/10 |
Keywords
- Elevator system
- Vertical vibration
- Non-stationary distributed model
- Computer simulation