Application of the Tail Equivalent Linearization Method to wave bending moment and comparison with experimental data. (January 2022)

• Record Type: Journal Article
• Authors: Garrè, Luca; Guo, Bingjie; Gramstad, Odin; Vanem, Erik
• Is Part Of: Probabilistic engineering mechanics. Volume 67(2022)
• Publication Date: 2022-01
• Subjects: Tail Equivalent Linearization Method -- Ship responses -- Bending moment -- First order reliability method -- Random vibration analysis; Engineering -- Statistical methods -- Periodicals; Mechanics, Applied -- Statistical methods -- Periodicals; Probabilities -- Periodicals; Ingénierie -- Méthodes statistiques -- Périodiques; Mécanique appliquée -- Méthodes statistiques -- Périodiques; Probabilités -- Périodiques; 620.100727
• DOI: 10.1016/j.probengmech.2021.103174
• Languages: English
• ISSNs: 0266-8920

Abstract

Abstract: This paper estimates extreme midship wave bending moment of a ship in a specific sea state using First Order Reliability Method (FORM) and the Tail Equivalent Linearization Method (TELM). FORM and TELM are applied to the random vibration analysis of the nonlinear bending moment and results are compared and verified against experimental data obtained from model tests as well as numerical simulations. A case study of an LNG tanker is presented, demonstrating that the proposed methodology yields reasonable results and that the TELM approach provides a fast and computationally efficient way of analyzing nonlinear vertical bending moment of ships in stationary sea states.