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ship motion

The design of a servo controlled winch for R R S  "Discovery" with compensation for ship motion

The design of a servo controlled winch for R R S "Discovery" with compensation for ship motion

... This report includes some preliminary considerations in the design of a servo control system for an electrical hydrographic winch which compensates f#r ship motion in the following manne[r] ...

40

Design of Classical Washout Algorithm for Six Degree of Freedom Ship Motion Simulator

Design of Classical Washout Algorithm for Six Degree of Freedom Ship Motion Simulator

... the motion simulator, which can convert the actual motion parameters of the ship into the position and pose information of the six degree of freedom ...real ship motion, because the ...

5

A General Technical Route for Parameter Optimization of Ship Motion Controller Based on Artificial Bee Colony Algorithm

A General Technical Route for Parameter Optimization of Ship Motion Controller Based on Artificial Bee Colony Algorithm

... for ship course ...of ship motion, make the selection of PID parameters more difficult ...of ship motion PID controller based on Artificial Bee Colony (ABC) algorithm, where the ...

5

The effect of forward speed on nonlinear ship motion responses

The effect of forward speed on nonlinear ship motion responses

... and motion equations resulting from the Newton’s law are integrated in each time step, but in the hybrid time-domain approach once the frequency domain BVP is solved then the resultant hydrodynamic data is ...

10

Experimental ship motion and load measurements in head and beam seas

Experimental ship motion and load measurements in head and beam seas

... wave amplitudes at different wave headings and the work was improved in 2003 with global wave load predictions. In order to evaluate the method used, the results of vertical bending moment, horizontal bending moment, ...

8

Three dimensional Green's function for ship motion at forward speed

Three dimensional Green's function for ship motion at forward speed

... replaced the double integral by a single integral see Wu and Taylor [3] involving a complex exponential integral, and it is found that it is more efficient to calculate the Green’s funct[r] ...

12

Seakeeping performance of semi-swath in following sea using controlled fins stabilizer

Seakeeping performance of semi-swath in following sea using controlled fins stabilizer

... the ship speed was assumed equal to the water velocity as explored by Naito and Isshiki (2005b) and Djackov ...the ship seakeeping behavior through introducing parameters of added mass, damping, and ...

37

Study of the Effects of Roll Motion on Transverse Stability of a Small Boat

Study of the Effects of Roll Motion on Transverse Stability of a Small Boat

... stability,ship motion and space international ship and offshore structures congress (ISSC 2012), ship motion is one of important and necessary topicsbecause oscillation of yacht will ...

5

Human error probability assessment during maintenance activities of marine systems

Human error probability assessment during maintenance activities of marine systems

... Background: Maintenance operations on-board ships are highly demanding. Maintenance operations are intensive activities requiring high man-machine interactions in challenging and evolving conditions. The evolving ...

29

Ship Nonlinear Rolling and Roll Angle Reconstruction Based on FIR

Ship Nonlinear Rolling and Roll Angle Reconstruction Based on FIR

... the ship displacement (linear displacement and angular displacement) mea- surement is widely ...on ship motion inertial measurement and recon- struction technology for the displacement, providing ...

10

Numerical Investigation on Dynamic Radar Cross Section of Naval Ship Considering Ocean Wave-Induced Motion

Numerical Investigation on Dynamic Radar Cross Section of Naval Ship Considering Ocean Wave-Induced Motion

... considering ship motions in actual ocean environments in spite that ocean waves induce the ship motion of the object naval ship and distort RCS ...naval ship considering the ocean ...

16

A New Method to Predict Vessel Capsizing in a Realistic Seaway

A New Method to Predict Vessel Capsizing in a Realistic Seaway

... In order to understand the complicated dynamics observed in most capsizing studies to date it is essential not to ignore the important nonlinear effects of the ship motion equations. While this can be quite ...

78

ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimation for Polynomial Phase Signal

ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimation for Polynomial Phase Signal

... We choose the received signal of the 1220th and 1251th range bins, and compute the smoothed pseudo-Wigner-Ville distribution (SPWVD) of them, which are shown in Figure 6. From Figure 6, we can see that the time-varying ...

9

The basic impact load model on deep water pier ship collision

The basic impact load model on deep water pier ship collision

... between ship and bridge is a complex multidisciplinary ...the ship-bridge collision ...the ship, the author summarizes three kinds of impact load model: triangle load model, half-wave sinusoidal load ...

11

An Investigation of Work, Life and Community On board Cruise Ships: A Hospitality Perspective

An Investigation of Work, Life and Community On board Cruise Ships: A Hospitality Perspective

... cruise ship works, in terms of the hierarchy, work, and social structures seemed to be a common factor in reasons for ...of ship work and life, and land work and ...

296

Modelling of ship bank interaction and ship squat for ship handling simulation

Modelling of ship bank interaction and ship squat for ship handling simulation

... Ch'ng 1991 developed empirical equations for the prediction of steady-state bank induced sway force and yaw moment for surface piercing banks down to a water depth to draught ratio of 1.[r] ...

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Research on bulk-cargo-port berth assignment based on priority of resource allocation

Research on bulk-cargo-port berth assignment based on priority of resource allocation

... With the increasing of the port operations, the existing port berths, storage yard, as well as machinery and other resources are relatively scarce, it is inevitable for the inbound operating vessels to wait in line, when ...

13

A container dispatching system for river ports based on distributed intelligent agent

A container dispatching system for river ports based on distributed intelligent agent

... Quay crane planning module allocates quay crane on the basis of ship type and loaded and unloaded volume. Usually this kind of assignment forms in the process of the arrival. The randomness and discreteness of ...

12

Study on the Early Warning Model of VTS Based on Dynamic Ship Domain

Study on the Early Warning Model of VTS Based on Dynamic Ship Domain

... A ship collision early warning model is established on the basis of that ship domain, which properly enlarges the horizontal plane of the ship domain model and adds the collision-judging[r] ...

5

Concepts of folly in English Renaissance literature : with particular reference to Shakespeare and Jonson

Concepts of folly in English Renaissance literature : with particular reference to Shakespeare and Jonson

... BARCLAY'S SHIP OP FOOLS; TILE FOLLY TRADITION 1... of the Ship of Fools to Erasmus'.[r] ...

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