Results 71 to 80 of about 105,800 (209)

A Performance Evaluation Scheme for Multiple Object Tracking with HFSWR

Sensors, 2019
High-frequency surface wave radar (HFSWR) can detect and continuously track ship objects in real time and beyond the horizon. When ships navigate in a sea area, their motions in a time period form a scenario.
Kun Wang, Pengju Zhang, Jiong Niu, Weifeng Sun, Lun Zhao, Yonggang Ji   +5 more
doaj   +1 more source

Seakeeping performances of an AHTS ship

Annals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2016
The importance of the evaluations of the response amplitude operators as well as of the accelerations in several points of interest on board of ship is directly linked to the index of operation of a floating structure. The higher the sea state to operate,
Liviu Crudu
doaj  

New Strip Theory Approach to Ship Motions Prediction [PDF]

This paper describes the development of strip theory to predict quickly with sufficient accuracy ship motions in wave taking into account nonlinear effects caused by interactions ship-wave.
Baso, Suandar
core  

Application of NASTRAN to propeller-induced ship vibration [PDF]

, 1975
An application of the NASTRAN program to the analysis of propeller-induced ship vibration is presented. The essentials of the model, the computational procedure, and experience are described.
Conaway, J. H., Liepins, A. A.
core   +1 more source

Vertical Bending Moment in Extreme Regular Waves—Benchmarking of Numerical Codes Against Model Tests

Journal of Marine Science and Engineering
A benchmark study of 10 different numerical methods for ship motion and load assessment is presented. Pitch motions and midship vertical bending moments are compared to model test results for a containership at zero speed in head regular waves.
Ole Andreas Hermundstad, Guillaume de Hauteclocque, Sopheak Seng, Masayoshi Oka, Chong Ma, Benjamin Bouscasse, Roberto Vettor, Shan Wang, Ivan Sulovsky, Jasna Prpic-Orsic, Kei Sugimoto, Tormod R. Landet   +11 more
doaj   +1 more source

Searching for Critical Conditions During Lifeboat Launching – Simulations

Polish Maritime Research, 2017
The article describes numerical simulations of the process of lifeboat launching at the ship’s side. The research aimed at finding the values of ship motion parameters which appear to be most dangerous for people in the lowered lifeboat due to the ...
Dymarski Czesław, Dymarski Paweł, Kniat Aleksander   +2 more
doaj   +1 more source

Update of membership and mean proper motion of open clusters from UCAC5 catalog

, 2018
We present mean proper motions and membership probabilities of individual stars for optically visible open clusters, which have been determined using data from the UCAC5 catalog.
Assafin, M., Dias, W. S., Monteiro, H.
core   +1 more source

Investigation of Seakeeping Performance of Trawler by the Influence of the Principal Particulars of Ships in the Bering Sea

한국해양공학회지
Investigating ship motion under real conditions is vital for evaluating the seakeeping performance, particularly in the design process stage. This study examined the influence of the principal particulars of a trawler on its seakeeping performance.
Thi Thanh Diep Nguyen, Hoang Thien Vu, Aeri Cho, Hyeon Kyu Yoon   +3 more
doaj   +1 more source

Dynamic Stability and Safety of Ships in Waves

Journal of Marine Science and Engineering
The study of ship motions and stability in waves has long been a cornerstone of naval architecture and ocean engineering [...]
Se-Min Jeong, Sunho Park
doaj   +1 more source

Ship motion estimation

, 1967
This thesis proposes a method of identifying the dynamics of ship angular motion at sea as the basis for ship motion estimation. Various sources of information are discussed. A digital model to simulate ship's motion is developed. Identification algorithms are presented with the results of thei stochastic digital simulation.
openaire   +1 more source