Journal № 2 2009

Mamonin N.P., Siek  IU.L.

POSITIONING OF UNDERWATER VEHILCES BASED ON FUZZY LOGIC

The description of algorithm of estimation of co-ordinates and parameters of movement of a sea bed vehicle on the basis of expanded filter Kalmana with application of methods of the theory of indistinct sets is resulted. To filter adjustment it is applied indistinct fuzzy model of knowledge. It is considered the description of the model. The methodology of synthesis of indistinct model Is offered. Efficiency of the decision of a problem is illustrated by results of imitating modeling  

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Zhuk Yu.S., Nechaev Yu.I.

ANALYSIS AND FORECAST OF SHIP DYNAMICS IN ONBOARD INTELLIGENCE SYSTEMS

The problem of processing of the measuring information is discussed at the analysis and forecasting of complex situations in onboard intelligence systems (IS). The increase of reliability of the forecast is achieved at the expense of use of models of the information within the framework of a principle of a competition principle. The mоdels are based on a method of finite elements, Takens theorem and neural networks technologies. The examples of realization of the offered approach are given at interpretation of situations in onboard IS of the control of ship dynamics in ice conditions.

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Каluzhni D.A., Nechaev Yu.I.

CONTROL OF DYNAMICS OF THE FLYING DEVICE AT LANDING IN SEA CONDITIONS

The construction of the neural-fuzzy control of dynamics of the flying device is discussed at landing in sea conditions. The algorithms of processing of the information are constructed within the framework of a competition principle. Modeling behavior of the flying device is carried out at call on landing on the basis of the classical theory of the management theory and neural networks models.

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Arutyunyan R. A., Yakimova K. S.

On the role of latent energy in the process of creep fracture of metallic materials

The creep fracture criterion for incompressible and compressible materials, based on energy conservation law and the results of investigations of the latent energies, is formulated. In accordance with the proposed criterion the energy consumption for high temperature creep fracture of metallic materials are limited. They are in agreement with the corresponding experimental values and depend on the rheology of materials.

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Portnoi A.S.

CHALLENGES IN CREATING INFORMATION ANALYSIS DECISION-SUPPORT SYSTEMS DURING RISK ASSESSMENTS OF SOPHISTICATED MARINE EQUIPMENT

This article describes possibilities of applying modern intelligent methods in the area of construction and utilization of the decision-taking system during risk assessments of marine objects. It suggests a structure for such system; draws conclusions as regards its implementation process and major components. It demonstrates that system operation assessments are sophisticated and complex.

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ON CALCULATIONS of WEAR OF CYLINDER LINERS IN ALTERNATIVE MODES OF MARINE DIESEL OPERATION

Settlement research of deterioration of cartridges of cylinders is resulted in view of variable power setting. By the example of some models of ship diesel engines the technique and results of calculation which will well be coordinated to available experimental data on deterioration are shown.

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PERFORMANCE ANALYSIS OF VOTING ALGORITHMS FOR INDENTIFICATION OF MARINE OBJECTS IN MULTICHANNEL INFORMATION SYSTEMS

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Mai Quoc Truong
gravity for vietnamese small fishING vesselS

   Consideration critical gravity of small fishing vessels. Method of development regression formulas for the different criteria of stability. The results of the research use in practical tasks for design of small fishing vessels SRV.

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Nechaev  Yu.I., Jarisov V.V.

CHOICE OF PARAMEYERS OF THE HULL FORM PROCEEDING FROM THE REQUI-REMENTS TO SHIP STABILITY ON WAVES

In clause the approach to definition main dimentions proceeding from the requirements to ship stability on wavest is considered on the basis of multicriteria optimization methods. The realization of this approach is carried out with use of the standards method and method of expert estimations. The examples of practical application of the developed approach for comparison purposes of criteria determining of stability loss on waves are considered.

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Smolnikov A.V.

SYNTHESIS OF EXPONENTIALLY STABLE DYNAMIC POSITIONING SYSTEMS

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 Skorokhodov D. A.,  Ovchinnikova E. A.

ALGORITHM OF SAFE MANEUVERING OF VESSEL IN STORM CONDITIONS

The opportunity of development of the additional function decided(solved) by system of information support of the operator of means of a vessel, the raised(increased) ветро-wave influence taking place in conditions is investigated.

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Alferov  V.I., Steshenkova N.a.

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Corrosion resistance of stainless shipbuilding steels

This article addresses issues of stainless steel applications in the shipbuilding industry. It analyzes forms of corrosion that various grades of stainless steel suffer from when utilized in marine conditions, as well as describes methods to resist corrosion damages. It demonstrates that materials designed by Central Research Institute of Structural Materials Prometey are particularly promising for applications in the shipbuilding industry.

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