Dynamic response of tension leg platform with tuned mass dampers
DOI:
https://doi.org/10.3329/jname.v10i2.16184Keywords:
Tension leg Platform, Tuned Mass Damper, Multi Tuned Mass Damper, Mass ratioAbstract
Tension Leg Platform (TLP) is a taut-moored compliant offshore platform that deploys tethers under high initial pretension to counteract the excess buoyancy. TLPs show large amplitude responses under the encountered lateral forces, which challenges the serviceability of the platform in critical sea states. One of the passive control device i.e. Tuned Mass Damper (TMD) is attempted in the present study to control large amplitude motion of TLPs. In the present study, response control of TLP using single and multiple TMDs is compared. Optimized parameters of multiple tuned mass dampers (MTMD) are obtained using H2 optimization algorithm for the maximum control of the motion of the platform. Based on the studies conducted, it is seen that MTMD systems show better response control in comparison to the single TMD. Higher robustness of the MTMD system is also examined to highlight the use of MTMD over a wide range of excitation frequencies in extreme sea states.
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References
Alexandros, A. T., Demos, C. A. and Jeffrey, T. S. (2009): Simulation-based robust design of mass dampers for response mitigation of tension leg platforms, Journal of Engineering Structures, Vol. 31, pp.847-857. http://dx.doi.org/10.1016/j.engstruct.2008.11.014.
Chandrasekaran, S., Chandak, N. R. and Gupta, A. (2006): Stability analysis of TLP tethers¸ Ocean Engineering, Vol. 33, No. 3, pp. 471-482. http://dx.doi.org/10.1016/j.oceaneng.2005.04.015.
Chandrasekaran, S., Bhaskar K., Lino, H. and Brijit, R. (2010a): Dynamic response behavior of multi-legged articulated tower with and without TMD, Proc. International Conf. of Marine Tech. (MARTEC-2010), 11-12 Dec 2010, Dhaka, Bangladesh, pp. 131-136.
Chandrasekaran, S., Bhaskar, K. and Muhammed, H. (2010b): Experimental study on dynamic response behavior of multi-legged articulated tower, Proc. 29th International Conf. on Ocean, Offshore and Arctic Engg, OMAE 2010, Shanghai, China, 6-11th June, 2010.
Chandrasekaran, S., Gaurav and Jain, A. K. (2010c): Ringing response of offshore compliant structures, International J. Ocean and climate systems, Multi-Science Publishing, Vol. 1, No 3-4, pp. 133-144. doi: 10.1260/1759-3131.1.3-4.133.
Chandrasekaran, S. Gaurav, Serino, G. and Miranda, S. (2011): Springing and ringing response of Triangular TLPs, International Shipbuilding Progress, Vol. 58 (2-3), pp. 141-163. doi: 10.3233/ISP-2011-0073.
Chandrasekaran, S. and Bhattacharyya, S.K. (2012): Analysis and Design of Offshore Structures with illustrated examples. Human Resource Development Center for Offshore and Plant Engineering (HOPE Center), Changwon National University Press, Republic of Korea ISBN: 978-89-963915-5-5.
Chandrasekaran , S. and Yuvraj, K. (2013): Dynamic analysis of a Tension Leg Platform under extreme waves, J. of Naval Arch and Marine Enggr, Vol. 10, 5968, DOI: 10.3329/jname.v10i1.14518.
Fahim, S., Bijan, M. and Andrew, W.T. (2008): A method of estimating the parameters of tuned mass dampers for seismic applications, Journal of Engineering Structures, Vol. 30, pp.70771. DOI: 10.1002/(SICI)1096-9845(199706)26:6<617::AID-EQE664>3.0.CO;2-Z.
Joshi, A. S. and Jangid, R.S. (1997): Optimum parameters of multiple tuned mass dampers for base-excited damped systems. Journal of Sound and Vibration, Vol. 202(5), pp.657-667. doi:10.1006/jsvi.1996.0859.
Kareem, A. and Kline, S. (1995): Performance of multiple tuned mass dampers under random loading, Journal of Structural Engineering, Vol. 121(2), pp.7595. http://dx.doi.org/10.1061/(ASCE)0733-9445(1995)121:2(348).
Kareem, A. (1983): Mitigation of wind induced motion of tall buildings. Journal of Wind Engineering and Industrial Aerodynamics, Vol. 11, pp.273-284. http://dx.doi.org/10.1016/0167-6105(83)90106-X
Lino, H.N. (2012): Dynamic response behaviour of multi-legged articulated tower with tuned mass dampers, Thesis of Master of Science (by Research), IIT Madras, pp. 98.
Nam, H. Yozo, F. and Pennung, W. (1997): Optimal tuned mass damper for seismic applications and practical design formulas, Journal of Earthquake Engineering and Structural Dynamics, Vol. 26, pp.617-635. http://dx.doi.org/10.1016/j.engstruct.2007.05.007
Toshihiko, A., Osamu, N. and Amr, M.B. (2002): Analytical solution to H? and H2 optimization of dynamic vibration absorbers attached to damped linear system, Journal of Vibration and Acoustics, Vol. 124, pp.284-295. doi:10.1115/1.1456458.
Zuo, L. (2009): Effective and robust vibration control using series multiple tuned mass dampers. Journal of Vibration and Acoustics, Vol. 131, pp.031003-1 -031003-11. doi:10.1115/1.3085879.
Zuo, L. and Nayfeh, S. (2005): Optimization of the individual stiffness and damping parameters in multiple tuned mass damper systems, Journal of Vibration and Acoustics, Vol. 127, pp.77-83. doi:10.1115/1.1855929.
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