... measured by tension gauges, and vertical acceleration measured by an accelerometer considering different wave directions and speeds. The results obtained in regular waves consist of 6-DoF motions (response amplitude operator), wave-induced forces, and vertical acceleration. The ship motions in regular...

... frequency marine transportation ship criteria sea state hull navigation calculation amplitude sea condition strip theory severe discomfort boundary icebreaker wave direction motion response wave frequency density function wave force vertical acceleration encounter frequency...

... with the recorder. The motion of the ice blocks was also recorded using a standard video camera with a resolution of 30 frames per second. Figure 4 shows the dimensionless vertical accelerations versus the time recorded in two tests of the first type when the ice block was dropped onto the surface of the floating...

...( , ji kirA , ),1( and ji kipA , ),1( are normalized parameters to evaluate navigation time, fuel consumption, vertical acceleration, roll angle and pitch angle. ji kitA , ),1( and ji kifA , ),1( enable presented system to select a route on which spent navigation time and consumed fuel...

... WISH. Seasickness level is evaluated in a short period using the frequency-weighted RMS of vertical acceleration in a low frequency range, and then it can be used for long-term prediction. In addition, the present study includes the application of the roll stabilizing fin to cooperate...

... carried by means of a model of post-panamax container ship. Water impact pressures on the bow flare, ship motions, vertical acceleration and relative water height were measured in head and bow seas. It is found that wave height has much effect on the magnitude of water impact pressure and ship motions...

... transportation vertical acceleration machine learning evaluation stochastic model artificial intelligence standard deviation A Stochastic Model for Evaluation of Seakeeping Performance Munehiko Minoura and Shigeru Naito Depertment of Naval Architecture and Ocean Engineering, Osaka University Osaka...

... training ship head sea irregular sea response function vertical acceleration evaluation method seasickness amplitude questionnaire trainee exposure duration ship motion frequency motion sickness lateral acceleration passenger transportation passenger comfort spectral density...

... from the viewpoint of passengers' comfort. The impulsive force on the stern fin is smaller than that on the bow fin in slamming conditions. Model experiments were conducted to evaluate the effect of our anti-pitching fins on ship motions. The anti-pitching fin at the stern reduced vertical acceleration...

... equation method vertical displacement sea bottom direct method fpso sea shock force sea shock load upstream oil & gas equation analytical method vertical acceleration Proceedings of the Ninth (1999) International Offshore and Polar Engineering Conference Brest, France, May 30-June 4, 1999...

...) -'Visual Orcaflex User Manual' load case curvature displacement turret vertical motion arclength single amplitude riser vertical acceleration minimum effective tension artificial intelligence dynamic analysis vertical displacement envelope point region information fusion compression...

... by SHI in its own design. passenger transportation heave rao catamaran wave height ship vertical acceleration trim tab equation matrix forward fin equency range wave spectrum head sea upstream oil & gas amplitude coefficient control surface marine transportation control...

... through the use of the landmark thin-ship theory of Michen (1898). objective function resistance optimization problem artificial intelligence calculation decision variable constraint waterline naval architect ship fwrmsva objective vertical acceleration ship motion architect...

... catamaran frequency numerical calculation strip method severe discomfort boundary vertical acceleration model test class high-speed catamaran sea state prediction hull test condition upstream oil & gas irregular head wave resistance Proceedings of the Fourth (1994) InternatIOnal...

... perpendicular to this. RESULTS Time Series In Figure 1 some data obtained from the triaxial accelerometer package deployed on the ice floe in the presence of an ocean wave field are plotted. The vertical acceleration signal (a) consists essentially of a heavily modulated sinusoidal wave with a period...

... In the hUman comfort problem of the floating island, various response quantities, SUCR as vertical acceleration, displacement, slope angle an'd duration H.me may be considered as -response parame- ters which influence human discomf.ort. III this study, however, only vertical acceleration and slope angle...