The authors have developed a high performance pneumatic actuator for tilt control, which is effective against motion sickness specific to tilting trains. First, we described the detail of this actuator. Second, the capability to comply with target tilt angle of the actuator was examined using experiments with a bench test apparatus. Furthermore, the ride comfort was examined by multi-body simulations with a detailed model of the pneumatic actuator and a single vehicle model. It was confirmed that the new actuator decreased the motion sickness (MSDVy value) by 25% as compared to that caused in case of the conventional actuator. Furthermore, the actuator did not increase the high-frequency lateral vibration of the vehicle body, which makes worse the ride comfort. In this work, we have obtained the following conclusions. (1) We developed a high response pneumatic actuator for tilt control. (2) In order to improve the response of the pneumatic actuator, it is effective to use a flow control valve instead of a pressure control valve and to remove a tilt damper for resistance reduction. (3) In order to ensure the control stability, it is effective to apply acceleration feedback loop of the piston, which works with the position feedback of the piston. (4) We developed a pneumatic damper circuit with one orifice and two pressure relief valves. Furthermore, the circuit was integrated into the actuator. This made it possible to remove the conventional tilt damper. (5) From the simulation results, it was found out that the new actuator decreased the motion sickness (MSDVy value) by 45% as compared to the value in the case of passive tilting without control, by 25% as compared to the value in the case of the conventional actuator.


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    Titel :

    Suppression of low-frequency lateral vibration by improving the response of pneumatic actuators for tilt control


    Beteiligte:
    Kazato, A. (Autor:in) / Kamoshita, S. (Autor:in) / Yamanaga, Y. (Autor:in)


    Erscheinungsdatum :

    2012


    Format / Umfang :

    14 Seiten, 17 Bilder, 1 Tabelle, 9 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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