Wind and Structures

Volume 12, Number 2, 2009, pages 103-120

DOI: 10.12989/was.2009.12.2.103

Response of double hinged articulated tower platforms to wind forces

Nazrul Islam, Mohd Moonis Zaheer and Suhail Ahmed

Abstract

Articulated tower platforms due to its compliant nature are more susceptible to the dynamic effects of wind than conventional fixed platforms. Dynamic response analysis of a double hinged articulated tower excited by low frequency wind forces with random waves is presented in this paper. The exposed super structure of the platform, housing the drilling and production facilities is subjected to mean and fluctuating wind loads, while the submerged portion is acted upon by wind driven waves. The fluctuating component of the wind velocity is modeled by Emil Simiu

Key Words

offshore structures; dynamic response; articulated loading platform; wind driven waves; sea site wind spectrum; compliant tower; nonlinearities; turbulent wind.

Address

Nazrul Islam and Mohd Moonis Zaheer; Department of Civil Engineering, Jamia Millia Islamia, New Delhi-110025, India Suhail Ahmed; Department of Applied Mechanics, Indian Institute of Technology, Delhi-110016, India