Ship Motions and Wave Loads

Predictions of Wave Induced Ship Motions and Loads by Large-scale Model Measurement at Sea and Numerical Analysis

In order to accurately predict wave induced motions and load responses of ships, a new experimental methodology is proposed. The new method includes conducting tests with largescale models under natural environment conditions. The testing technique for large-scale model measurements proposed is quite applicable and general to a wide range of standard hydrodynamic experiments in naval architectu...

Interactive Simulation of Ship Motions in Random Seas based on Real Wave Spectra

The current paper presents a methodology to compute and represent the ship motions at interactive frame rates, when navigating on a virtual sea defined by a real wave spectrum. The Inverse Discrete Fast Fourier Transform algorithm is used to compute the sum of all ship motions components induced by the waves and get the final irregular ship motion. Currently, this is the most efficient method t...

A Ship-borne Wave Recorder

Coupling between Flexible Ship and Liquid Sloshing Using Potential Flow Analysis and Its Effect on Wave-induced Loads

In this paper the potential flow approach adopted in previous investigations for the coupling effect between rigid body ship motion and sloshing is extended to the flexible ship-partially filled tank system, using the de-singularised Rankine source method. The unified method is verified by applying it to the sloshing in a partially filled rectangular tank with a flexible wall. The main aim of t...

Cervical spine loads and intervertebral motions during whiplash.

OBJECTIVE To quantify the dynamic loads and intervertebral motions throughout the cervical spine during simulated rear impacts. METHODS Using a biofidelic whole cervical spine model with muscle force replication and surrogate head and bench-top mini-sled, impacts were simulated at 3.5, 5, 6.5, and 8 g horizontal accelerations of the T1 vertebra. Inverse dynamics was used to calculate the dyna...