Reports at the 6th International Conference "Innovations of shipbuilding and ocean engineering" in Nikolaev
From 24th till 27th of September, 2015 the 6th International Scientific and Technical Conference "Innovations of shipbuilding and ocean engineering" was held in admiral Makarov National University of Shipbuilding (NUS) in Nikolaev. Conference was devoted to 95th anniversary of the University.
For the Conference proceeding specialists introduced 184 reports concerning different tasks of theory and practice of shipbuilding and shipping.
Reports of the Ukraine leading marine specialists, including one of Marine Engineering Bureau were represented during the plenary session.
Bureau's reports were "Black Sea region: what kind of new vessels are needed?" (author is the general director, professor, Sc.Dr., Gennadiy Egorov) and "Saving of civil fleet: new vessels construction with usage of elements of donor vessel" (author is perspective development director, chief designer Nikolay Avtutov).
The Marine Engineering Bureau participated actively in Conference work, there was submitted 11 reports concerning the most actual scientific and practical problems of Ukrainian shipbuilding and shipping for shipbuilding community discussion.
1. Main tendencies in passenger transportation by water transport. (Authors are G.V. Egorov, N.V. Avtutov, Ya.V.Kalugin)
The assessment of need for new fleet for linear passenger communications is carried out on the basis of the analysis of the existing passenger transportation by water transport. The line-up of concepts of passenger ships of local lines developed by Marine Engineering Bureau is given.
2. Analysis of operation of river passenger cruise vessels and operational risk. (Authors are G.V. Egorov, A.G. Egorov)
Research of risk of operation of the river cruise passenger ships (RCPS) is fulfilled. RCPS operational conditions are much quieter than for cargo vessels. The analysis of the accidents with RCPS which took place since 1983 is made. In total 79 accident descriptions were processed. The main hazards which led both to accidents and to disasters are defined. The steady growth of breakdown for vessels older than 20 years with peak of accidents for 25-30 years old ones are observed. Technical recommendations from a position of navigation and ecological safety for passenger ships design are made.
3. Transportation of long-size and heavy cargoes by domestic water transport. (Authors are G.V. Egorov, N.V. Avtutov)
Actual information about existing river and river-sea vessels and their applicability for transportation of large-size and heavy cargoes is provided. The analysis of modern vessels is submitted according to the ones that are specially adapted for transportation of large-size and heavy cargoes such as 003RSD04 prj. of "Kaspian Express" type, RSD49 prj. of "Neva Leader" type, DCV47 prj. of "Sosnovka" type, RST54 prj. of "Balt-Fleet" type and other projects of Marine Engineering Bureau.
4. Dry cargo coasters of "Caspian Express" type (Authors are G.V. Egorov, V.I. Tonyuk, N.N. Kalugina)
In the field of vessel's domestic design and construction till 2004 there was no practically coastal vessel's class that is widespread in the European shipbuilding; this is so-called "coasters" with conventional length no more than 85 m (without lifeboats). 003RSD04 series of "Caspian Express" type with modifications allows the shipowner to solve successfully problems of the wide cargoes' nomenclature transportation (from non-standard large-size cargoes till grain in bulk).
The analysis showed significant advantage of technical and economic characteristics of 003RSD04 vessels comparing with analog vessels (such as displacement/ deadweight efficiency and energy consumption per transport productivity).
Such advantage is reached thank to limitation of navigation region and rational distribution of thickness and categories of material of the steel hull from positions of ensuring the general longitudinal and local strength.
5. Concept of today river-sea dry cargo vessel with "Ice 40" category for the "Northern delivery" (Authors are G.V. Egorov, V.I. Tonyuk, N.N. Kalugina)
New multipurpose dry-cargo river-sea vessel is developed; she is better than "Sibirskiy" ones due to cargo capacity in t6he wide region of working draughts (2.50 - 3.50 m). She corresponds to the maximal dimensional restricts of ship-repairing abilities of Lena River. She has suitable Register class (due to sailing region) for seasonal work at the Northern Marine Way and sufficient ice properties in order to be able to return to the base in the ice-forming conditions when ice thickness is of 40 cm.
6. Concept of railway-automobile-passenger ferryboat of Arctic type for Sakhalin (Authors are G.V. Egorov, I.A. Ilnitskiy, D. V. Chernikov)
Description and analyze of existence Black Sea ferry fleet is introduced. A parametric line for railway-passenger and automobile-passenger ferryboats is accepted. These ferryboats should be based at domestic Black Sea existing and perspective terminals.
7. Railway ferryboat for railway wagons and other Ro-Ro cargoes with "Arc 4" ice category for Ust-Luga - Baltiysk - Sassnitz (Mukran) line (Authors are G.V. Egorov, I.A. Ilnitskiy, D. V. Chernikov)
New concept is a result of complex investigations carried out in 2012-2013 by Marine Engineering Bureau in interaction with lead native and foreign scientific institutes including Aker Arctic Technology (vessel's contours recommendations, ice model tests), CSRI of Marine Fleet (technical decisions examination at all design stages, vessel's contours forming, economical calculations and situation modeling), State scientific Center named for academic A.N. Krylov (model towage tests, self-running tests, sea keeping tests, checking tests in the ice tank), design bureau of wagon department of OJSC "Russian Rail Ways" (checkup of an opportunity of trains transportation onboard the ferry).
New concept provides in comparison with the existing "Sakhalin" type vessels:
• enhanced cargo capacity (truck cars capacity is 2.6 times bigger);
• weather restrictions absence (unrestricted sailing region);
• ability of working in severe ice conditions (at speed of 6-8 kn in 80 cm ice and speed about 4,5 kn in 1.0 m ice);
• ability to carry out independent (several times per day) moorings without towing assistance; ability for long reverse movement through constrained water area of the port of Kholmsk;
• ability to keep up daily cycle of round voyage (operation speed is 18 kn);
• 2-hours staying for loading-unloading operations.
This new concept (at CNF11CPD variant) is able to carry up to 150 passengers and is able to transport dangerous goods.
Vessel's equipment provideŻ ability to work during voyage at full or partial power plant's capacity, to effect main engines maintenance without withdrawal ferryboat from operation.
8. Preconditions for creating up-to-date river dredgers (Authors are N.V. Avtutov, N.Yu. Muzyka)
The greatest attention should be paid to strengthening of the main working kernel of technical fleet, i.e. dredgers. Dredgers represent the most complex, design and construction expensive vessels; they are also power-intensive at operation. The most part of the vessels was constructed abroad: at Czechoslovakia, Finland, Japan and Holland.
Typical vessels' projects have to be offered in vessels' perspective table; first of all for dredgers and suction dredgers. Modern shipbuilding technologies, materials and equipment should be taken into account as well as modern requirements of ecology, sanitary rules and other documents.
Same time these vessels have to be optimized due to productivity and constructive decisions, improvement of the dredging works technology, considering features of each river basin and other characteristics.
9. Creating of mathematic model for general particulars definition of composite vessels (Author is A.G. Egorov)
The mathematical model for definition of optimal general particulars of the river-sea composite vessel and tug-barge trains; this mode is used for preliminary design step for new generation vessels.
In order to achieve the maximal economic effect, it's necessary to accept general particulars of the greatest possible capacity for the set voyage conditions and due to sufficient manoeuvrability condition (by analogy with self-propelled river-sea vessels). Thus composite vessel or tug-barge train has to pass any lock on the considered voyage line without rearrangement.
10. Definition of optimal block coefficient and speed of composite vessels and tug-barge trains of "Volgo-Don Max" type (Author is A.G. Egorov)
Optimum values of block coefficients and speed for composite vessels and tug-barge trains of "Dnepro Max" type are defined; economical investigation for the main operational models was accepted as the definition basis.
Definition of operation efficiency for each model was carried out taking into account real demurrages during voyage, heavy sea and possible underloading at the considered lines. Payback periods are accepted. Other efficiency indicators that allow to estimate expediency of projects implementation are investigated.
11. Specifics of analysis and classification of accidents of inland waterway and river-sea vessels (Author is V.A.Nilva)
The analysis of statistical data due to river and river-sea vessels' accidents for 1991-2012 is submitted. The idea of finding of conditional probabilities for separate types of hull damages was used therefore more detailed classification of damages of only hull constructions was introduced. Attention was put at damages' distribution by vessel's length; failures of vessel's equipment, systems and mechanisms weren't considered. Obtained results allow drawing a conclusion that the most probable types of inland vessels' accident are fires and explosions, grounding and ice damages.