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Reduction of deadweight pendulum motion and its conformation by using a build-up system

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Abstract

Deadweight force machines cause oscillating components strongly related to the pendulum motion of the deadweight in the measured force signals. An estimating method of the pendulum motion using a build-up system has been proposed in previous papers. In this paper, the estimation algorithm was confirmed by comparison with the directly measured trajectory through the analysis of a 500 kN deadweight force standard machine in Korea Research Institute of Standards and Science. After the dynamic analysis of the force machine, it was modified to decrease the pendulum motion effects by accurately controlling its loading speed. As a result of the modification, the oscillating level due to the dynamic behavior of the force machine has been reduced considerably.

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Correspondence to Yon-Kyu Park.

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This paper was recommended for publication in revised form by Associate Editor Seong-Wook Hong

Yon-Kyu Park received his B.S., M.S. and Ph.D. in Mechanical Engineering from KAIST, Korea, in 1991, 1993 and 1998, respectively. Dr. Park is currently a Principal Research Scientist of Korea Research Institute of Standards and Science (KRISS) in Korea. His research interests include standards of force and torque, mechanical sensors, and metrology in human-mechanics.

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Park, YK., Kang, DI., Kim, JH. et al. Reduction of deadweight pendulum motion and its conformation by using a build-up system. J Mech Sci Technol 23, 2956–2963 (2009). https://doi.org/10.1007/s12206-009-0812-7

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  • DOI: https://doi.org/10.1007/s12206-009-0812-7

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