METHOD FOR REDUCING SOUND TRANSMISSION IN VEHICLES, AN UNDERCARRIAGE FOR VEHICLES AND AN ACTUATOR

The invention relates to a method for reducing sound transmission in vehicles, particularly in rail vehicles, to an undercarriage for vehicles, particularly for rail vehicles, and to an actuator. The invention is suited for, but not limited to, use in rail vehicles for passenger transit, particularl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FRANK, PAUL-GERHARD, STORM, STEFAN, MAIER, RUDOLF, ROEDER, ARNO, MOESER, CLEMENS, PUCHER, MARIO, BIEKER, GUIDO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING PERFORMING OPERATIONS PREVENTING DERAILING OF RAIL VEHICLES RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH RAILWAYS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLE SUSPENSION ARRANGEMENTS VEHICLES IN GENERAL WEAPONS WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES
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Beschreibung
Zusammenfassung:	The invention relates to a method for reducing sound transmission in vehicles, particularly in rail vehicles, to an undercarriage for vehicles, particularly for rail vehicles, and to an actuator. The invention is suited for, but not limited to, use in rail vehicles for passenger transit, particularly for rapid long-distance traffic. According to the method for reducing sound transmission in rail vehicles, at least one vibration sensor (1) senses the disturbing vibrations generated and/or transmitted by the wheels. A device for analyzing the frequencies of the signals of the least one vibration sensor (1) determines the frequencies of the strongest harmonic excitations. At least one fault sensor (2) measures the residual vibrations or residual forces transmitted to the secondary level (14) or to the car body. In the event disturbance frequencies are determined by the device for analyzing the frequency of the vibration sensor signal, a control unit generates the control signals for at least one actuator, especially a piezo-actuator (3) while taking the signals of the at least one fault sensor (1) into account. The at least one actuator, particularly piezo-actuator, minimizes the residual vibrations or residual forces transmitted to the secondary level (14) or to the car body.