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Paper Information

Title: 

THE EFFECT OF PRETENSION AND COMPENSATOR PARAMETERS ON THE FATIGUE DAMAGE ACCUMULATED IN MARINE RISERS

Type: PAPER
Author(s): HAMIDI SHAHRZAD,MOGHISEH AMIR
 
 
 
Name of Seminar: INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS) PORTS & MARITIME ORGANIZATION
Type of Seminar:  CONFERENCE
Sponsor:  PORTS AND MARITIME ORGANIZATION
Date:  2010Volume 9
 
 
Abstract: 

1. INTRODUCTION: FATIGUE DAMAGE ACCUMULATION IS ONE OF THE MOST IMPORTANT PROBLEMS ABOUT MARINE STRUCTURE THAT ARE EXPOSED THE ALTERNATIVE LOAD. RISER IS ONE OF THESE STRUCTURES. THE SURROUND ENVIRONMENT OF RISER CAUSES THE ALTERNATIVE STRESSES AND FATIGUE IN RISER.
FOR OBTAINING THESE STRESSES THE ANALYSIS OF THE VORTEX INDUCED VIBRATION IN TWO DIRECTION, IN-LINE AND CROSS FLOW, IS NECESSARY. IN THIS ARTICLE, AT THE FIRST THE DYNAMIC BEHAVIOR IN TWO DIRECTIONS WILL BE STUDIED AND THEN THE STRESSES IN RISER ARE CALCULATED. AT THE END THE FATIGUE DAMAGE IS STUDIED BY USING MANSON THEORY AND THE EFFECT OF COMPENSATOR PARAMETERS IS INVESTIGATED.

 
Keyword(s): RISER, COMPENSATOR, FATIGUE, PRETENSION
 
 
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