Force Redistribution Method for Compensating Actuator-Breakdown of Vibration-Isolation Tables Supported with a Redundant Number of Pneumatic Actuators

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概要

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• A force redistribution method for compensating actuator breakdown of vibration-isolation tables is studied. The vibration-isolation table is supported by eight pneumatic actuators and has a redundant number of actuators with respect to the degrees of freedom of table motion. We propose a force redistribution method that utilizes the redundancy of the actuators. In the proposed method, when some of the actuators break down, their output forces are redistributed on the unbroken actuators. We construct a detailed mathematical model in view of the behavior of the vibration-isolation table when some of the actuators break down. A type 1 digital servo system is applied to control the vibration and position of the vibration-isolation table. We perform numerical simulations in which some of the actuators break down at a certain time and the pressure of the broken actuators decreases at a constant rate. The numerical simulations examine the effectiveness of the proposed method.

• 一般社団法人 日本機械学会の論文

著者

• Yoshida Daisuke

  Graduate School Of Engineering Osaka Prefecture University

• MAEDA Takumi

  Graduate School of Engineering, Hokkaido University

• EMARU Takanori

  Faculty of Engineering, Hokkaido University

• EMARU Takanori

  Faculty and Graduate School of Engineering, Hokkaido University

• KOBAYASHI Yukinori

  Faculty and Graduate School of Engineering, Hokkaido University

• HOSHINO Yohei

  Kitami Institute of Technology

• KOBAYASHI Yukinori

  Faculty of Engineering, Hokkaido University

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• Force Redistribution Method for Compensating Actuator-Breakdown of Vibration-Isolation Tables Supported with a Redundant Number of Pneumatic Actuators

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