Single Objective Optimization Research of a Bulk Carrier Structure

Abstract:

The purpose to optimize the ship structure is to obtain the minimum weight and the maximization of economic benefit. The way is to change the ship size, structure form, whole or partial structure layout under the condition of meeting the requirements of mechanical properties. The whole ship structure optimization model is established. Optimization is carried out by means of the Optimtoolbox in MATLAB, with the total mass of the ship as objective function, the requirements of the specification and the natural frequencies as constraint conditions. With sensitivity analysis,the thickness of bottom plate, deck, keelson, side keelson, superstructure bulkhead, hatch coaming and other components are selected as design variables. The results show that through optimization, better ship lightweight effect is obtained under the premise of guarantee hull structure strength, stiffness and dynamic characteristics. The bulk carrier structure is optimizaed.

• Periodical: Applied Mechanics and Materials (Volume 709)
• Pages: 215-218
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.709.215
• Online since: December 2014
• Authors: Han Liu, Fang Zhen Song*, Ming Ming Li, Bo Song
• Keywords: Frequency, Optimization, Ship Structure, Stress

References

[1] Susu Zhou, Lijuan Xia, Whole-ship structural optimization under static and dynamic conditions, Journal of Vibration and Shock. 32(2013) 69-73.

[2] Zhe Lin, Deyou Zhao, Optimum dynamic design for grillage structure, Ship Engineering. 6(1998) 9-11.

[3] Fusong Li, Jianjun Chen, Dynamical optimum design of the mechanical oscillation system in fluidic generator, Acta Armamentar II. 21(2000) 46-49.

[4] Hongyan Ma, Shutian Liu, Yuanxian Gu, Shape and topology optimization of offshore plateform, The Ocean Engineering. 19 (2001) 21-28.

[5] Mingpei Tang, Guiping Yan, Overview of structural sensitivity analysis and computation method, China Railway Science. 24(2003) 74-78.

[6] Lili Dong, Yiping Zhao, Linquan Yang, Reviewe on theory and approach of mechanical optimization design, Machine Tool and Hydraulics. 38(2010) 114-119.

[7] CCS, Inland Steel Ship Construction Norm, China Communications Press, Beijing, (2009).

[8] Jianjun Chen, Jianwen Che, Structure dynamic optimization with probability constraints of frequency and mode, Chinese Journal of Computational Mechanics. 18(2001) 74-80.