Strength Checking and Finite Element Analysis to Hoisting Pads for Launching on Horizontal Slipway

Abstract:

In this paper, with a 92,500 ton bulk-carrier being mainly taken as an example, the preparing design of launching processing scheme on the horizontal berth is discussed. Calculation of needed hulling force and strength examination of hoisting pad are done, and then the structural strength of hoisting pads and their stiffening structures are analyzed with the aid of finite element technique. Once the total assembly of hull is completed on the berth, the launching weight should be calculated and proper number of box-beams should be determined. Sliding frictional media used between box-beams and slipping-rails should be selected, and according to combined frictional coefficient, the needed pulling force by which the hull may be hoisted forward securely should be fixed. In order to assure the safety of ship in the period of launching, strength examination calculating for hoisting pads and stiffening members should be done by means of finite element method as soon as their types and assembling positions are determined, so that the strength of hoisting pads and stiffening structures should be able to meet the requirements. Owing to that this ship having being successfully launched, the reliability and usability stated in this paper have being verified. Therefore, it is of quite value to be referred in technical analysis for launching on the horizontal slipway.

• Periodical: Applied Mechanics and Materials (Volumes 380-384)
• Pages: 181-185
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.380-384.181
• Online since: August 2013
• Authors: Ya Nan Huang, Da Lu Liu, Feng Sheng Sun, Yu Wang, Dong Lu
• Keywords: Finite Element Analysis (FEA), Hoisting Pad, Ship Construction on Flat Earth, Strength Examination

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