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.
Similar content being viewed by others
References
D. I. Kang and B. D. Lim, Analysis of deadweight oscillation in a deadweight force machine using a build-up system, Experimental Mechanics, 40 (2000) 83–89.
D. I. Kang and B. D. Lim, Determination of the averaging time for precision calibration of a buildup system in a deadweight force machine, Measurement, 19 (1996) 217–227.
Y. K. Park and D. I. Kang, Oscillating signal components of a deadweight force standard machine and reduction techniques, Measurement Science & Technology, 10 (1999) 748–754.
Y. K. Park and D. I. Kang, Pendulum motion of a deadweight force-standard machine, Measurement Science & Technology, 11 (2000) 1766–1771.
H. Wieringa, Design of a 1.65 MN and 4.95 MN transfer standard based on the build-up procedure, Proc. of 10th IMEKO TC-3 Conference, Kobe, Japan (1984) 67–77.
J. Man, Establishment of force standards up to 4.5 MN based on a build-up system at NMIA, Proc. of APMF2005, Jeju, Korea (2005) 45–51.
Y. K. Park and D. I. Kang, Build-up force-measuring system and its application, MAPAN-Journal of Metrology Society of India, 20 (2005) 223–229.
A. V. Oppenheim and R. W. Schafer, Discrete-time Signal Processing, Prentice Hall, New Jersey, USA, (1989).
Y. K. Park, M. S. Kim, J. H. Kim, D. I. Kang and H. K. Song, 100 kN deadweight force standard machine and evaluation, J. of Mechanical Science and Technology, 20(7) (2006) 961–971.
Author information
Authors and Affiliations
Corresponding author
Additional information
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.
Rights and permissions
About this article
Cite this article
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
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12206-009-0812-7