ﻧﺸﺮﯾﻪ ﻣﻬﻨﺪﺳﯽ درﯾ ــ ﺎ ﺳﺎل ﻧﻬﻢ / ﺷﻤﺎره18 / ﭘﺎﯾﯿﺰ و زﻣﺴﺘﺎن1392 ) 23 - 34 ( 23 ﺑﺮرﺳ ﯽ رﻓﺘﺎر ﺗﺎﻧﺪون ﻫﺎ و ﺳﮑﻮ ي ﭘﺎ ﯾ ﻪ ﮐﺸﺸ ﯽ در ﺣﺎﻟﺖ ﺻﺪﻣﻪ د ﯾ ﺪه اﻣﯿﺮﺣﺴﯿﻦ رزاﻗﯿﺎن 1 ، ﻣﺤﻤﺪ ﺳﻌﯿﺪ ﺳﯿﻒ 2 * ، ﻣﺤﻤﺪرﺿﺎ ﺗﺎﺑﺶ ﭘﻮر 3 ١ ﮐﺎرﺷﻨﺎس ارﺷﺪ ﻣﮑﺎﻧﯿﮏ درﯾﺎ، ﻗﻄﺐ ﻋﻠﻤﯽ ﻫﯿﺪرودﯾﻨﺎﻣﯿﮏ و دﯾﻨﺎﻣﯿﮏ ﻣﺘﺤﺮﮐﻬﺎي درﯾﺎﯾﯽ، داﻧﺸﮕﺎه ﺻﻨﻌﺘﯽ ﺷﺮﯾﻒ؛razaghian@mech.sharif.ir 2 اﺳﺘﺎد، ﻗﻄﺐ ﻋﻠﻤ ﯽ ﻫ ﯿ ﺪرود ﯾ ﻨﺎﻣ ﯿ ﮏ و د ﯾ ﻨﺎﻣ ﯿ ﮏ ﻣﺘﺤﺮﮐﻬﺎ ي در ﯾ ﺎ ﯾﯽ، داﻧﺸﮕﺎه ﺻﻨﻌﺘﯽ ﺷﺮﯾﻒ؛seif@sharif.edu 3 اﺳﺘﺎدﯾﺎر، ﻗﻄﺐ ﻋﻠﻤ ﯽ ﻫ ﯿ ﺪرود ﯾ ﻨﺎﻣ ﯿ ﮏ و د ﯾ ﻨﺎﻣ ﯿ ﮏ ﻣﺘﺤﺮﮐﻬﺎ ي در ﯾ ﺎ ﯾﯽ، داﻧﺸﮕﺎه ﺻﻨﻌﺘ ﯽ ﺷﺮ ﯾ ﻒ؛tabeshpour@sharif.ir اﻃﻼﻋﺎت ﻣﻘﺎﻟﻪ ﭼﮑﯿﺪه ﺗﺎرﯾﺨﭽﻪ ﻣﻘﺎﻟﻪ: ﺗﺎرﯾﺦ درﯾﺎﻓﺖ ﻣﻘﺎﻟﻪ: 28 / 09 / 1392 ﺗﺎرﯾﺦ ﭘﺬﯾﺮش ﻣﻘﺎﻟﻪ:20 / 12 / 1392 ﺗﺎرﯾﺦ اﻧﺘﺸﺎر ﻣﻘﺎﻟﻪ:28 / 12 / 1392 در ا ﯾ ﻦ ﻣﻘﺎﻟﻪ ﺑﻪ آﻧﺎﻟ ﯿ ﺰ ﻫ ﯿ ﺪرود ﯾ ﻨﺎﻣ ﯿ ﮑ ﯽ ﺳﮑﻮ يISSC TLP در ﺣﺎﻟﺖ ﺻﺪﻣﻪ د ﯾ ﺪه ﻧﺎﺷ ﯽ از اﻧﻘﻄﺎع ﯾ ﮏ ﺗﺎﻧﺪون ﭘﺮداﺧﺘﻪ ﺷﺪه اﺳﺖ. ﻫﺪف از اﯾ ﻦ ﻣﻬﻢ، ﭘﺮداﺧﺘﻦ ﺑﻪ رﻓﺘﺎر ﺳﮑﻮ در ﺣ ﯿ ﻦ ﻗﻄﻊ ﯾ ﮏ ﺗﺎﻧﺪون ﻧﺎﺷﯽ از ﺷﺮا ﯾ ﻂ ﻧﺎﻣﻨﺎﺳﺐ در ﯾ ﺎ ﯾﯽ ﻣ ﯽ ﺑﺎﺷﺪ . در ﺑﺨﺶ اول ا ﯾ ﻦ ﻣﻘﺎﻟﻪ ﺑﻪ ﻣﺪل ﺳﺎزي ﺳﮑﻮ و ﺷﺮا ﯾ ﻂ ﻣﺤ ﯿ ﻄ ﯽ ﭘﺮداﺧﺘﻪ ﺷﺪه و ﺑﺎ ﻗﻄﻊ ﯾ ﮏ ﺗﺎﻧﺪون، اﺛﺮات ﮔﺬرا رو ي ﺗﺎﻧﺪون ﻫﺎي د ﯾ ﮕﺮ ارز ﯾ ﺎﺑ ﯽ ﺷﺪه و ﻧﺘﺎ ﯾ ﺞ ﻧ ﯿ ﺮوﻫﺎ ي ﭘﺎ ﯾ ﺪار ﻧ ﯿ ﺰ ﺑﺎ ﻧﺘﺎ ﯾ ﺞ ﺗﺤﻠ ﯿ ﻠ ﯽ ﺻﺤﺖ ﺳﻨﺠ ﯽ ﺷﺪه اﺳﺖ. در اداﻣﻪ ﻧﯿ ﺰ، ﺗﺎر ﯾ ﺨﭽﻪ زﻣﺎﻧ ﯽ6 درﺟﻪ آزاد ي، ﺷﺘﺎب ﺳﺮج و ﻫﯿﻮ و ﺗﻐ ﯿﯿ ﺮات ﻧ ﯿ ﺮو ي ﺗﺎﻧﺪون ﻫﺎ، در اﻣﻮاج ﺑﺎ ﭘﺮﯾ ﻮد و ارﺗﻔﺎع ﻣ ﺸﺨﺺ اﺳﺘﺨﺮاج ﺷﺪه اﺳﺖ. ﺑﻪ ﻣﻨﻈﻮر اﻧﺠﺎم آﻧﺎﻟ ﯿ ﺰ ﻫ ﯿ ﺪرود ﯾ ﻨﺎﻣ ﯿ ﮑ ﯽ ا ﯾ ﻦ ﺳﺎزه ﺷﻨﺎور، از ﯾ ﮏ ﻧﺮم اﻓﺰار اﻟﻤﺎن ﻣﺮز ي ﭼﻨﺪ ﻣﻨﻈﻮره اﺳﺘﻔﺎده ﮔﺮدﯾ ﺪ. ﻧﺘﺎ ﯾ ﺞ ﻧﺸﺎن ﻣ ﯽ- دﻫﺪ ﻣﺪل ﺳﺎز ي ﺑﻨﺤﻮ ﻣﻨﺎﺳﺐ ﺻﻮرت ﭘﺬ ﯾ ﺮﻓﺘﻪ و ﺗﻌ ﯿﯿ ﻦ اﻟﮕﻮ ي رﻓﺘﺎر ﺳﮑﻮ در ﺣﺎﻟﺖ ﺻﺪﻣﻪ دﯾ ﺪه در اﻣﻮاج ﻣﻨﻈﻢ اﻣﮑﺎن ﭘﺬﯾ ﺮ ﻣ ﯽ ﺑﺎﺷﺪ. ﮐﻠﻤﺎت ﮐﻠﯿﺪي: ﺳﮑﻮ يISSC TLP اﻟﻤﺎن ﻣﺮز ي ﭘﺎرﮔ ﯽ ﺗﺎﻧﺪون ﺗﺌﻮر ي ﺗﻔﺮق Investigation of tendons and TLP behavior in damaged condition Amir Hossein Razaghian 1 , Mohammad Saeid Seif 2* , Mohammad Reza Tabeshpour 3 1 M.S. student, Center of Excellence in Hydrodynamic and Dynamic of Marine Vehicles, Sharif University of Technology; razaghian@mech.sharif.ir 2 Professor, Center of Excellence in Hydrodynamic and Dynamic of Marine Vehicles, Sharif University of Technology; seif@sharif.edu 3 Assistant Professor, Center of Excellence in Hydrodynamic and Dynamic of Marine Vehicles, Sharif University of Technology; Tabeshpour@sharif.ir ARTICLE INFO ABSTRACT Article History: Received: 19 Dec. 2013 Accepted: 11 Mar. 2014 Available online: 19 Mar. 2014 This paper evaluates the hydrodynamic performance of a damaged ISSC TLP which is caused by a tendon disconnection. Performance evaluation of a TLP with a disconnected tendon in a rough sea state is the major aim of this paper. First off, modeling of a platform in a proper sea state is carried out and then after disconnecting one of the tendons, the transient effect on the other tendons is assessed. Also, the steady state forces are validated using analytical results. Additionally, time history of heave and surge accelerations, TLP six degree of freedom motions and also tendon forces are determined in regular waves. In order to assess the hydrodynamic performance of the platform, a numerical simulation is conducted, using multipurpose boundary element software. At last the analysis shows that the modeling of a damaged platform is carried out properly and also the conclusion can be drawn that it is possible to evaluate the performance of a damaged platform in Regular waves. Keywords: ISSC TLP Tendon Disconnection Boundary Element Diffraction theory Downloaded from marine-eng.ir at 20:37 +0330 on Sunday November 28th 2021