- 期刊
Non-Linear Pitch Motion Identification and Interpretation of a Tension Leg Platform
並列摘要
The present study describes an analysis of the non-linear effects and identification of non-linear pitch motion on tension leg platforms. The data was supplied by well-known oil company and was obtained from a tension leg platform designed as a rectangular shaped floating platform connected to the ocean floor by 16 vertical steel tethers or legs, four per corner. The legs are kept in tension so that vertical movement is suppressed, while limited horizontal movement might occur. The purpose of this paper is to accurately identify pitch motion on the tension leg platform and to interpret the non-linear effects (for example bursting resonance behaviour) using statistical methods, the NARMAX methodology, and the higher order frequency response functions.
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