Investigation of The Value of Spring Constant and Mass on The Efficiency of Moving Mass Devices

  • Muhammad Azmi Taqiuddin Universiti Teknologi Malaysia, Malaysia
  • Nik Mohd Ridzuan Shaharudin Universiti Teknologi Malaysia, Malaysia
  • Omar Yaakob Universiti Teknologi Malaysia, Malaysia
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pdf downloaded: 163 times
Keywords: Frequency Ratio, Moving Mass, Spring Constant, Roll Motion


Simple configuration and has good efficiency, make a moving mass stabilizer one of the options that can be applied to reduce roll motion on a small vessel. This stabilizer however has a limitation in dealing with the ship’s hydrostatic changes while on duty especially when the stabilizer is designed to be passive. The purpose of this research is to improve the ability of the stabilizer to be able to adapt the change in ship hydrostatics. A Tsunami 22’ fishermen vessel model was selected to be used for this research. By conducting roll decay experiments, natural frequency data from the vessel is then used to design calculations for the device on two different load conditions. Moving mass stabilizer frequency is dependent on two parts that are the spring coefficient “k” and the weight of the mass moving. In this Research, Spring adjustment is selected to make the stabilizer able to change frequency following change on the vessel. It is found that the best frequency ratio between the frequency of stabilizer and vessel is 1. Adjusting the spring of the stabilizer turned out to give an increase in device performance by 8.9 % when compared to adjusting the mass. The results obtained in this research indicate the moving mass stabilizer has good potential to reduce the roll motion.


T. Perez, “Ship motion control”, Centre of ships and ocean structures, NTNU, Marine Technology centre, NO-7491, Trondheim, Norway, 2004.

R.A. Ibrahim, “Recent advances in nonlinear passive vibration isolators”, Department of Mechanical Engineering, Wayne State University, US, 2007.

Y. Koike and K. Tanida, “Development of Hybrid Anti-Rolling Device for Ships and Test at sea”, British Maritime Technology 29 (3), pp. 109, 1996.

T.W. Treakle, D.T. Mook, S. I. Liapis, and A. H. Nayfeh, “A time-domain method to evaluate the use of moving weights to reduce the roll motion of a ship”, Ocean Engineering 27, pp. 1321-1343, 1999.

H. Sasaki and R. Watanabe, ‘Active Rolling Control of Ships”, IEEJ Transactions on Industry Applications, vol. 120, pp. 1382-1390, 2000.

N. Montazeri, S. H. Mousavizadegan, and F. Bakhtiarinejad, “The Effectiveness of Moving Masses in Reducing The Roll Motion of Floating Vessels”, Proceedings of the ASME 2010 International Mechanical Engineering Congress& Exposition, IMECE2010-38574.

R. Bhattacharya, Dynamic of Marine Vehicles, 1st Edition. Toronto: A Wiley Interscience Publication, pp. 75-95, 278-297, 1972.

A. A. M. Ayob and O. Yaakob, “Roll Mitigation for Small Fishing Boat”, Journal of Transport System Engineering 2:2, pp 46-50, 2015.

P. A. Mahendradewi, “Simulation of Centrifugal Machine Vibration Damping Using Dual Dynamic Vibration Absorber System (Dual DVA)”, Institut Teknologi Sepuluh Nopember, 2014.

S. A. Farhum, “A Study on Stability and Operational Safety of South Sulawesi Pole In Liner in Beam Seas”, Institut Pertanian Bogor, 2006.

How to Cite
M. A. Taqiuddin, N. M. R. Shaharudin, and O. Yaakob, “Investigation of The Value of Spring Constant and Mass on The Efficiency of Moving Mass Devices”, IJEEPSE, vol. 5, no. 2, pp. 50-54, Jun. 2022.