ACTIVE VIBRATION ISOLATION USING 6DOF STEWART PLATFORM: AN EXPERIMENTAL STUDY

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REZAEI MAHDI; BABAEI SOTEH MEGHDAD

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:14 Page(s): 89-96

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Information Journal Paper

Title

ACTIVE VIBRATION ISOLATION USING 6DOF STEWART PLATFORM: AN EXPERIMENTAL STUDY

Author(s)

REZAEI MAHDI | BABAEI SOTEH MEGHDAD | Issue Writer Certificate

Keywords

STEWART PLATFORMQ2

ACTIVE VIBRATION ISOLATIONQ2

MEMS SENSORSQ2

KALMAN FILTERQ2

Abstract

The STEWART PLATFORM with six degree of freedom (three translational and three rotational motions) consists of two rigid bodies, lower plate (base) and upper one (mobile). These two bodies are connected together by six extensible legs between three pairs of joints on each of the bodies. This platform can be used to isolate the top plate of the platform and its payload from the applied motions to the base. Since the passive isolation methods are not effective in elimination of the high amplitude (and usually) low frequency motions, this paper practically investigates the possibility of using the 6DOF STEWART PLATFORM as an active vibration isolator. In this study, a STEWART PLATFORM was designed and constructed based on electric actuators (servo-motors). And then it was practically utilized to isolate its top plate from the applied pitch and roll rotations to the base plate. MEMS SENSORS including two accelerometers and one rate gyro along with KALMAN FILTER and kinematic relations were utilized for measuring the pitch and roll motions. A PI controller was implemented to keep the top plate at level position using the MEMS SENSORS installed on the bottom plate. The experimental results indicated that the platform can effectively isolate the pitch and roll motions while the frequency of these motions is in the working speed range of the electric actuators.

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APA: Copy

REZAEI, MAHDI, & BABAEI SOTEH, MEGHDAD. (2015). ACTIVE VIBRATION ISOLATION USING 6DOF STEWART PLATFORM: AN EXPERIMENTAL STUDY. MODARES MECHANICAL ENGINEERING, 14(14), 89-96. SID. https://sid.ir/paper/178731/en

Vancouver: Copy

REZAEI MAHDI, BABAEI SOTEH MEGHDAD. ACTIVE VIBRATION ISOLATION USING 6DOF STEWART PLATFORM: AN EXPERIMENTAL STUDY. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(14):89-96. Available from: https://sid.ir/paper/178731/en

IEEE: Copy

MAHDI REZAEI, and MEGHDAD BABAEI SOTEH, “ACTIVE VIBRATION ISOLATION USING 6DOF STEWART PLATFORM: AN EXPERIMENTAL STUDY,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 14, pp. 89–96, 2015, [Online]. Available: https://sid.ir/paper/178731/en

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