Polar region ship hull plate thickness plasticity design method

• Main Authors: ZHU LING, CAI WEI, GUO KAILING, MU MENGYING
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; PHYSICS

The invention discloses a polar region ship hull plate thickness plasticity design method. The method comprises the steps that allowable plastic deformation and permissible permanent deformation parameters of a hull plate are determined according to the structural design requirement of the hull plate; determining material parameters of the ship body plate and geometric dimensions of the ship body plate subjected to floating ice collision; determining floating ice parameters and collision speed according to the designed ship ice level and the navigation area ice condition; establishing a plastic response theoretical model of the ship body plate under floating ice collision, and obtaining a floating ice maximum damage length-speed relational expression according to an ice body damage dissipation energy equation and a collision force balance equation; obtaining a floating ice damage loss speed-allowable plastic deformation relational expression according to a maximum plastic deformation formula; a relational exp