Loading...
Search for:
mooring-system
0.009 seconds
Stability analysis of a CALM floating offshore structure
, Article International Journal of Non-Linear Mechanics ; Volume 36, Issue 6 , 2001 , Pages 917-926 ; 00207462 (ISSN) ; Goodarzi, A ; Sharif University of Technology
2001
Abstract
It has been shown that there exists the necessary and sufficient condition for the existence of stable periodic response for a type of catenary anchor leg mooring system, (CALM). The mathematical model shows that the governing equation of motion for the system is a non-linear parametric second-order ordinary differential equation. The above-mentioned conditions have been obtained using the Schauder's fixed-point theorem. The validity of the assumptions has been fully demonstrated by analyzing a few examples. © 2001 Elsevier Science Ltd
Experimental investigation on response and efficiency of moored pontoon type floating breakwaters
, Article Iranian Journal of Science and Technology, Transaction B: Engineering ; Volume 31, Issue 1 , 2007 , Pages 95-99 ; 03601307 (ISSN) ; Akbari, M ; Sharif University of Technology
2007
Abstract
This paper presents the experimental results of an investigation on the response and efficiency of floating pontoon type breakwaters. Random waves modeled by the Pierson Moskowits wave spectrum are used for various configurations of floating breakwaters. The experimental results are presented in graphs for the transmission coefficient as a function of incident wave length and height for breakwaters used in this study. The obtained results for the breakwaters of this study show that by increasing the wave period and length, the transmission coefficient increases, while increase in the mass and draft of the floating breakwater causes the transmission coefficient to reduce. © Shiraz University
Basic Design of Mooring Automatic Control System in Mooring Vessels
, M.Sc. Thesis Sharif University of Technology ; Abbaspour Tehrani Fard, Madjid (Supervisor)
Abstract
One of the most significant challenges and issues that port engineers and coastal specialists face in the field of improving port performance is the design and development of hardware systems to enhance the efficiency of loading and unloading operations of ships. These systems need to be designed in a way that reduces the duration of loading and unloading operations of ships and improves the efficiency of cranes. One efficient technology in this field is the Automatic Mooring Systems, which are connected to the hull of berthed ships and use hydraulic cylinders to generate control forces. On the other hand, as evident in today's world, artificial intelligence is recognized as a vital and key...
Floating bridge modeling and analysis
, Article Scientia Iranica ; Volume 12, Issue 2 , 2005 , Pages 199-206 ; 10263098 (ISSN) ; Paein Koulaei, R. T ; Sharif University of Technology
Sharif University of Technology
2005
Abstract
This paper presents an overview of a study on the design and analysis aspects of the Lake Urmia Bridge in Iran. For years there have been several detailed investigations on this subject. Here, these alternatives are discussed and, then, results of analyses for a proposed solution, a floating bridge, are presented. These aspects include environmental loads, structure and the mooring system. © Sharif University of Technology
The optimum mooring configuration with minimum sensitivity to removing a mooring line for a semi-submersible platform
, Article Applied Ocean Research ; Volume 114 , 2021 ; 01411187 (ISSN) ; Seyed Abbasian, S. M. R ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Mooring lines may be damaged under severe conditions during the life of an offshore platform. In the event of a mooring failure, it is possible to break remaining mooring lines in a severe condition, which ultimately leads to the total structural failure; Therefore, the post-failure analysis is very important for the mooring system. In this study, the Amir-Kabir semi-submersible platform has been modeled which is installed in 700 m’ depth of the Caspian Sea, and random waves have been generated towards the structure in the form of the JONSWAP wave spectrum according to the conditions of the Caspian Sea. For analysis, four different mooring configurations have been considered. Then, in each...