... This paper summarizes lessons learned from analyzing acceleration data recorded during full-scale seakeeping trials of high speed craft. Applications using a consistent maximum wave impact load approach in different areas of interest, including hull structure, shock isolation seat evaluation...

... The height of the intersection between the free surface and a ship hull is of interest for many naval architecture applications. For example, wave height at a station influences the probability of water on deck, and wetted elevation at a buttock on a transom influences resistance forces...

.... For vertical acceleration measurements, the application of low-pass filters is not recommended due to the high frequency nature of relevant events. The present work proposes the application of wavelet transforms as a filtering technique for vertical acceleration time series. An influence investigation...

... asme convergence study application roache THE 30th AMERICAN TOWING TANK CONFERENCE WEST BETHESDA, MARYLAND, OCTOBER 2017 ASME Codes and Standards V&V Committee Development of Standards for Verification, Validation and Uncertainty Assessments in Modeling and Simulation Dr. Christopher J. Freitas...

... intelligence variance experiment iteration statistics probability application prediction algorithm platform regression characteristic american towing tank conference denote optimization problem simulation evaluation quantity particle hydrodynamic spectrum posterior THE 30th AMERICAN...

... threshold rare event probability machine learning excitation ship motion statistics american towing tank conference gpd naval engineering belenky quantity estimation shape parameter artificial intelligence knuckle point application confidence interval equation stationary process...

... cavitation channel waterline wind tunnel application THE 29th AMERICAN TOWING TANK CONFERENCE ANNAPOLIS, MARYLAND, AUGUST 2010 Wind Tunnel Tests of a Trimaran Hull Robert J. Etter, NSWCCD Carderock Division, West Bethesda, MD, USA Jewel B. Barlow, Ahmad Kassaee, Hareen Aparakakankanange, University...

... include: Sunken Oil Detection, Calm Sea Dispersant Application and Washout, Remote Oil Spill Sensing, Oil Herders in Pack Ice, Dispersant Effectiveness with Low Doses and Repeated Application, Skimmer Nameplate Capacity Testing, Submersible Pump Test, Oil Herders to Improve Offshore Dispersant Operations...

... Light detection and ranging (LIDAR) is a nonintrusive measurement technique commonly used in applications such as topographic mapping and architectural surveys. It relies on the time-of-flight of a laser pulse to measure the distance to a reflective surface. Work by Hwang et al. (2000...

... Propeller tunnels fitted to high-speed yachts are becoming more prevalent. The advantages of reduced operating draft or the possibility of using larger propellers are attractive to the boat builder. This paper examines the effects of propeller tunnel applications on propeller cavitation...

... Lifting surfaces are used both for propulsion and control of sea vessels and must meet performance criteria such as lift, drag, and (in some military applications) hydroacoustic noise limits. Design tools suitable to predict such criteria must handle complex flow phenomena and manage the wide...

... carrier concept fn 0 resistance application topology future naval surface ship design objective coefficient Future Naval Surface Ship Design and Hydrodynamic Performance Assessment Jim Webster (V),l Ian Mutnick (V),2 Jim Rice(V),2 lNaval Sea Systems Command Hydrodynrunics Branch 2David Taylor...

... below the waterline, making air purging practical. Calibration required forty one runs. upstream oil & gas shaft unique calibration sensitivity probe calibration application waterline transducer rake wake survey propeller shaft diameter propeller boat magnitude pitot rake plane...

... A unique three-dimensional imaging system for the purpose of mapping two-phase bubbly flows with applications in tow tanks is presented. A defocusing optical setup was implemented to generate images with imbedded information on the three-dimensional spatial position of bubbles. A novel approach...

... Water particle motions on the wave surface are of interest to the designer for various applications that require quantification of particle kinematics. Difficulties in predicting these kinematics lead to other alternatives such as measurements in model tests. The modelled waves themselves...

..., no wake is left downstream since, for an invisid fluid, vorticity and circulation are identically zero everywhere at all time. The interest of this work is to seek and understand the mechanisms responsible for propulsion in an ideal fluid for possible employment in real fluid applications. This would...

... for the hydrodynamic tests. precision weld repair bethesda figure 2 hardness penetration application towing basin track implementation electrode evaluation basin carriage procedure division vibration figure 13 smaw electrode worn joint surface warfare center accelerometer operation weld...

... validated and compared with those of another method, as well as with measurements from a supercavitating propeller experiment. cavitation application supercavity pn 2 separation propeller thickness institute ukon hpuf-3a-scp convergence hpuf-3a vector coefficient procedure sc-vlm...

... In model basin testing it is a common practice to measure both the global and local loads on offshore and mari.ne structures. The purpose of this paper is to describe the design and application of a variety of load cells for the measurement of these loads under a simulated wave environment...

... Experience with the strip theory-based numerical seakeeping performance prediction model SHIPMO is described with applications ranging from fast surface vessels to unconventional hull forms such as icebreakers. A brief history of the model's development, its salient features and examples...