Transient Position Recognition of Roller Coaster Based on the Detected Motion Signal Characteristics

The operation of the roller coaster is a typical position-dependent non-stationary process, and its vibration signal analysis is closely related to the transient position. For further study, experiments were taken on the roller coaster of a certain amusement park. The mixed signals of motion and vibration were collected by the pre-developed data acquisition instrument. Data smoothing processing is performed by subsection curve fitting method and the detected motion signal is extracted to analyze its characteristics. The dynamic model of roller coaster is established to study the corresponding relations between the motion signal characteristics and the transient position of roller coaster. The analysis results show that the characteristics of movement detected signal could effectively reflect the transient position of the roller coaster and could provide the theoretical and practical foundation for further study on the position-dependent non-stationary signal process.