In the vibration analyses for the elevator systems, especially in high-rise buildings, the elevator rope is assumed as an elastic model. There are two types of vibrations in the rope. One is the longitudinal vibration, and the other is the lateral one. Accordingly it is desirable to consider longitudinal and lateral vibrations at the same time. However many conventional works have been carried out with the longitudinal and lateral vibrations separately. This paper proposes a wave transmission

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... del for the behavior of the lateral vibration of rope coupled with the longitudinal vibration. We explain the process of constitution for the analytical model. Furthermore, the validity of proposed model will be shown through some experimental results.