Marine structures (large warships, container ships and super large floating airports) interact with waves, currents and other fluid forms in harsh marine environment. Nonlinear complex fluid forces are coupled with elastic structures to form the theory of Hydroelasticity. Whether floating structures can bear extreme wave loads and fluid structure coupling mechanism are key scientific problems. The research group has long been committed to revealing the law of floating body load and hydroelastic dynamic response in complex marine environment, and has established advanced numerical prediction methods and mature and reliable pool model test methods.