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Fundamental Investigation on Active Vibration Control for Railway Vehicles Using Oil-Hydraulic Actuator. Application to Lateral Vibration Modes on Test Stand.

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  • 油圧アクチュエータによる鉄道車両の制振に関する基礎的検討 試験台実験における左右振動系への適用
  • ユアツ アクチュエータ ニ ヨル テツドウ シャリョウ ノ セイシン ニ カン

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Abstract

Actively controlled suspensions with pneumatic actuators have been studied to improve the ride quality of railway vehicles. This paper deals with the applicability of oil-hydraulic actuators that may have more effect on the control of vehicle vibrations. A numerical analysis and its fundamental experiments on a test stand with a life-size model were carried out to investigate active vibration control. In the experiment, the employed control law based on LQR can use measured accelerations directly as feedback variables, so that the time derivative of the actuator force acts as the control input. As a result, the vibrations in a lower frequency range under 4 Hz were controlled well by the simple control law. This range includes natural frequencies of the vehicle model. However, it requires some countermeasure for vibrations in a higher frequency range from 5 to 10 Hz.

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