Non Linear Analysis of Ship Motions and Loads in Large Amplitude Waves

2010 ◽  
Author(s):  
G Mortola ◽  
◽  
A Incecik ◽  
O Turan ◽  
S E Hirdaris ◽  
...  
Keyword(s):  
Large Amplitude ◽  
Linear Analysis ◽  
Ship Motions ◽  
Non Linear

NON LINEAR ANALYSIS OF SHIP MOTIONS AND LOADS IN LARGE AMPLITUDE WAVES

2021 ◽  
Vol 153 (A2) ◽  
Author(s):  
G Mortola ◽  
A Incecik ◽  
O Turan ◽  
S.E. Hirdaris
Keyword(s):  
Frequency Domain ◽  
Time Domain ◽  
Large Amplitude ◽  
Linear Time ◽  
Ship Motions ◽  
Wave Loads ◽  
Time Step ◽  
Strip Theory ◽  
Non Linear ◽  
The Time Domain

A non linear time domain formulation for ship motions and wave loads is presented and applied to the S175 containership. The paper describes the mathematical formulations and assumptions, with particular attention to the calculation of the hydrodynamic force in the time domain. In this formulation all the forces involved are non linear and time dependent. Hydrodynamic forces are calculated in the frequency domain and related to the time domain solution for each time step. Restoring and exciting forces are evaluated directly in time domain in a way of the hull wetted surface. The results are compared with linear strip theory and linear three dimensional Green function frequency domain seakeeping methodologies with the intent of validation. The comparison shows a satisfactory agreement in the range of small amplitude motions. A first approach to large amplitude motion analysis displays the importance of incorporating the non linear behaviour of motions and loads in the solution of the seakeeping problem.

scholarly journals Non-Linear Features in Large Amplitude Ship Motions (1st Report)

2002 ◽  
Vol 2002 (191) ◽  
pp. 97-103 ◽  
Author(s):  
Takako Kuroda ◽  
Yoshiho Ikeda ◽  
Toru Katayama ◽  
Ritsuo Shigehiro
Keyword(s):  
Large Amplitude ◽  
Ship Motions ◽  
Linear Features ◽  
Non Linear

Non-Linear Features in Large Amplitude Ship Motions (2nd Report)

2002 ◽  
Vol 2002 (192) ◽  
pp. 237-246 ◽  
Author(s):  
Takako Kuroda ◽  
Tetsuro Ikebuchi ◽  
Yoshiho Ikeda
Keyword(s):  
Large Amplitude ◽  
Ship Motions ◽  
Linear Features ◽  
Non Linear

Determination of Concrete Cube Strength from Used Samples / Určení Krychelné Pevnosti Betonu U Použitých Zkušebních Trámců

2012 ◽  
Vol 12 (2) ◽  
pp. 186-194 ◽  
Author(s):  
Oldřich Sucharda ◽  
David Mikolášek ◽  
Jiří Brožovský
Keyword(s):  
Compressive Strength ◽  
Concrete Beams ◽  
Linear Analysis ◽  
Bending Tests ◽  
Cube Strength ◽  
Non Linear ◽  
Compressive Strength Of Concrete ◽  
Concrete Cube

Abstract This paper deals with the determination of compressive strength of concrete. Cubes, cylinders and re-used test beams were tested. The concrete beams were first subjected to three-point or fourpoint bending tests and then used for determination of the compressive strength of concrete. Some concrete beams were reinforced, while others had no reinforcement. Accuracy of the experiments and calculations was verified in a non-linear analysis.

scholarly journals A non-linear analysis of running in the heavy and severe intensity domains

2021 ◽  
Author(s):  
Ben Hunter ◽  
Andrew Greenhalgh ◽  
Bettina Karsten ◽  
Mark Burnley ◽  
Daniel Muniz-Pumares
Keyword(s):  
Linear Analysis ◽  
Severe Intensity ◽  
Non Linear
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