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39 Scientific Journals of the Maritime University of Szczecin, no. 39 / 2014



 

Recent Submissions

  • Barta, Dalibor; Mruzek, Martin (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    One of the most frequent topics of professional community is the ecology of transport. Different types of transport need individual approach to design suitable drive of vehicles. At design of public transport vehicles drives it is important to work with parameters close to the real conditions of using the drive or with real measured parameters. It helps to find the best conception of the drive and so reduce the consumptions of energy and the production of air pollutants. Energy intensity of the vehicle is usually determined on the basis of a driving simulation based on driving cycles for fuel consumption and harmful emissions measuring. These driving cycles are simplified and do not include the grading resistance, therefore, they are insufficient to determine certain specific conditions. Compilation of driving simulation based on real driving cycles measured during the vehicle driving in urban traffic seems to be more appropriate for specific vehicles, such as buses for public transport are. The aim of this paper is to show to what extent the use of standard driving cycles for the design of electric drives, respectively hybrid drives of vehicles, is consistent with real conditions.
  • Behrendt, Cezary (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The paper presents an analysis of technologies usable at fishing vessels which ensure that fuel consumption by their power systems is reduced as well as the emission of exhaust gases. During the analysis the specificity of operational activities for fishing vessels and the International Maritime Organization (IMO) requirements have been taken into consideration. Energy saving technological, operational and logistic activities have been discussed. Forecast savings regarding fuel consumption upon application of technological innovations at fishing vessels have been presented.
  • Beškovnik, Bojan; Bajec, Patricija (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The article describes the trend towards implementation of environmental initiatives in the maritime and port sector. The introduction of environmental thinking and green management has been analysed to better understand the impacts on European ports. Moreover, drivers influencing port’s environmental initiatives and their adoption were analysed empirically on the case of port of Koper which is classified as one of the leading environmentally friendly European ports. Based on an in-deep analysis of developed measures a wider used approach has been proposed which might be used as a platform by the ports in the region and also by other fast developing ports. It is obvious that ports will be forced to implement environmental objects in their longterm development plan. Obtained cognitions should help them to develop a scenario for faster introduction of objects and measures to obtain the status of a green port and follow sustainable development in the future.
  • Biały, Witold (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    Considering the specific working conditions of the machines and devices used in coal mining, the selection and exploitation method which takes into account changes of these conditions during the machine’s work, is very important. Presented here is the overhaul process of the main fan used for ventilating the mining excavation sites and the innovative solutions applied in the process. The overhaul processes before and after implementing an innovative solution have been compared and the resulting benefits for the company have been pointed out.
  • Bortnowska, Monika (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    In the last years, in the area of mining polymetallic nodules has been made a lot of progress in their search, assessment of the marine environment, the development of mining technology, was developed a framework for political and legal and made economic analysis. Therefore, is increasingly becoming a feasible mining of Fe-Mn on an industrial scale. One of the basic elements of the whole system of mining is mining ship, hence the article presents a scheme the determination of its size depending on the initial parameters, i.e.: the annual efficiency of mining and storage period of excavated material in the holds of the ship. Determined dependence of regression to the preliminary forecasting ship size by using the information from drill ships – deemed similar in terms of functional and architectural. As a result of analyzing the main compartments of the vessel was estimated the percentage of volume in the hull of the vessel. Performed visualization of spatial design concept of mining ship.
  • Bortnowska, Monika (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The economic crisis initiated in 2007, has caused disturbance and a fairly a sharp drop the yachting industry in the country. Many of foreign companies could not bear at all the crisis and were forced to close or were absorbed by other companies in the sector. Since 2010, is observed the at first slow, and currently the dynamic growth of produced boats for various purposes also on the Polish market for Polish customers. The upward trend of the sector will need adequately trained engineers (specialists) - designers, constructors, technologists, etc. Deficiencies literature regarding (approaches) design guidelines on recreational boats, bowed the author to develop one of the methods determine the basic dimensional parameters and design of motor yachts at the initial stage, right away selected the technical assumptions. Based on the gathered database of built yachts developed regression that allow the initial design stage to determine the basic dimensions, namely: LOA, B, H, T and the design parameters, i.e. D, SP, CB yacht. This allows start the next project stage, which is the creation the first concept yacht along with his shape, bodylines and estimate construction costs.
  • Burakovskiy, Evgeny P.; Burakovskiy, Pavel E. (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    In this paper the results of experimental research of residual deflection accumulation process in plates under the influence of repeated static loads in the mode of “creeping” and “relaxing” are presented. The main ideas of the nature of plate deformation, which make it possible to take into account the history of loading resulting deformation, and the results of modeling the process of accumulation of residual deflections in the use of short-term service loads are formulated in this document.
  • Cepowska, Żaneta; Cepowski, Tomasz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    This paper presents computer software “FastStability”. The software has been developed for all kind of vessels and calculates stability with many additional options. The “Fast Stability” program is used in Post- Secondary Maritime School in Szczecin in education purpose.
  • Cepowski, Tomasz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The naval architect has to tackle many of the problems, while designing ships for the loading, storage and transport of polymetallic or other nodules, this article focuses on how to assure appropriate hull strength. This author proposes mathematical relationships and operational and design solutions allowing to more effectively reduce shear forces and bending moments during the loading of nodules in the open sea. The suggested solutions may be used in the design of ships intended for such or other functions.
  • Dramski, Mariusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The shortest path problem is one of the most significant ones in the field of maritime navigation. One of the most efficient algorithms was proposed by E. Dijkstra in 1959. Taking into account the development of computer technology was offered another interesting approach to the issue. The main idea is to execute the shortest path algorithm simultaneously forward from the source and backward from the target. The results are presented and discussed.
  • Drzewieniecka, Beata (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The increasing needs for carrying solid bulk cargoes by means of marine transport have increased interest in the subject of safe carriage of these cargoes by sea. One of them are ore concentrates. During the transport by the sea, the cargo tends to liquidate and shift toward the sides which may increase the inclination when rolling and leads to loss of stability of the ship. There has been presented the results of researches on moisture content and flow moisture point of copper ore concentrate. Furthermore, transportable moisture limit for this concentrate was determined. The researches are of practical importance, because of the liquefaction phenomenon of concentrates that are transported by the sea. This phenomenon is the cause of many accidents and even may lead the vessel to capsize.
  • Jaśkiewicz, Marek; Lisiecki, Jakub; Lisiecki, Szymon; Ślaski, Grzegorz; Więckowski, Dariusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The paper presents the technical assumptions and the design of a testbed suitable for conducting experimental tests of gearboxes. In the case of drivetrain assemblies, most often they are built on testbeds, much more seldom in vehicles. Experimental tests constitute a broad field due to the differentiation of functions of individual assemblies and their components in the drivetrain system of cars and machines. Conducting simulation tests (on simulation testbeds) consists in the possibly faithful recreation of real operating conditions of an assembly in a vehicle. The testbeds for such tests are complex and expensive but the obtained results are more reliable and more precisely, than in the case of other methods, take into consideration the impact of different operating loads on the durability of the research object. Due to the extent of the topic, this study is only the introduction to the design work whose aim is to prepare the design of a testbed.
  • Jaśkiewicz, Marek; Więckowski, Dariusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The article presents the analysis of the impact of the safety belt used onto a man sitting in a chair. The tests were conducted for small-speed collisions for three centile groups: 5, 50 and 95-centile group respectively. Each of those groups comprised men between 20 to 35 years of age. The tests were conducted on the inclined plane type device simulating the collision of a vehicle with the speed of approx. 12 km/h. Three types of safety belts were used for the tests: two point, three-point and four-point belts. The results of analyses are presented in this article.
  • Jóźwiak, Zofia; Resznyak, W.I. (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    In the article theoretical bases of technology of purification of bilge water, which is formed during the operation of ship power plants. Theoretical foundations are based on theoretical premises Kulskij L.A. that the choice of methods of cleaning depends on the properties of the treated water. The basic properties of oil bilge water that oil present in this water emulsified oil products and oil as the individual phases. Also made an analysis other factors that determine the choice of technology cleaning of bilge water. The basic technological scheme of cleaning should contain methods for cleaning from free product and from emulsified. There is also the possibility to use such methods of water treatment, which improve the efficiency of methods of cleaning. Theoretical bases allow to develop effective devices for cleaning bilge water as marine and coastal or for floating treatment facilities.
  • Liščák, Štefan; Moravčík, Ľubomír; Jaśkiewicz, Marek (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The road safety is affected by several factors quality of infrastructure, behaviour of drivers, including their proper training and also safe cars. For the safety of vehicles in the approving process a number of regulations (regulatory acts) apply, regulating the technical requirements in the active and passive vehicle safety, but also in the environment. In the area of technical requirements for vehicles and their parts significant changes occur constantly, mainly due the progressive technological developments. A large number of regulatory acts are often changed due to the tightening. These regulatory acts relates directly to manufacturers, because their manufactured vehicles have to meet these requirements. That these regulatory instruments are evolving in the right direction proved the fact that due to better road safety the number of fatal accidents in the last two decades shrunk, although the volume of traffic has tripled. A significant progress has been achieved only through the improved vehicle safety and only in a small measure thanks to the improvement and upgrading of the infrastructure.
  • Łozowicka, Dorota; Kaup, Magdalena (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The short specificity of high -speed passenger craft (HSC) and analysis of factors affecting the safety of such units is presented at the article. Normative documents relating to the HSC evacuation is also described. The purpose of this article is to analyze and evaluate the possibility of evacuation of passengers in emergency situations on HSC. This analysis was done on the example of a catamaran in accordance with regulation MSC/Circ.1166 given by IMO.
  • Miller, Anna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    Model Predictive Control is a control strategy which can be used for ships guidance and trajectory tracking problems. Linear multidimensional MPC controller is used to control the transversal, longitudinal and rotational velocities of a ship. Control system based on the MPC algorithms is robust to wind disturbances and thus can be used in real sailing conditions. It is proved by the computer simulations results and described in detail in this publication. Whole control system was designed and simulation studies were carried out on the basis of the real floating training ship model. A Model Predictive Controller synthesis steps, including linearization of the nonlinear ship model in the vicinity of operating point, are shown.
  • Molenda, Michał (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    Article is devoted to the factors conditioning the improvement of the quality management system (QMS) of industrial company. In this paper, these factors are called determinants of improvement in the QMS. Particular attention was paid to factors which sources should be sought in knowledge management in the organization. These determinants have been identified in the research process which was conducted among the management of one of the large industrial companies. In the research process, degree to which the determinants support forms of professional organization was assessed. These forms are described in the first part of the following process which these are the innovations and Kaizen. The corrective and preventive actions are mentioned as the third form of improvement mechanisms which are in the form of obligatory procedures for quality management systems based on ISO 9001 quality management standard. The last part of the Article is dedicated to chosen aspects of the role of Knowledge Management in the improvement of the quality management system.
  • Pietrzykowski, Zbigniew; Magaj, Janusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    This paper presents the problem of determining a safe ship trajectory in a restricted area. The route choice task is defined as a dynamic optimization problem. The route choice algorithm and criteria are presented and discussed. The ship fuzzy domains are used as a safety criterion. The criterion of the number of manoeuvres to be performed by the own ship is added to the algorithm. The ship encounters simulated situations. Calculated safe ship trajectories were presented and discussed. Discusses the implementation of the present process, in real terms.
  • Ranachowski, Zbigniew; Pawełek, Andrzej; Drzymała, Piotr; Bonarski, Jan; Lewandowski, Marcin; Ozgowicz, Wojciech (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    This paper discusses the mechanical properties, microstructure and crystallographic texture of light alloys made on the base of aluminium, magnesium and lithium. An acoustic emission (AE) technique was applied to detect the moment of twinning or slip activation during compression and channel – die tests to extend the comprehension on the nature of the plastic deformation processes occurring in the investigated alloys.
  • Rybczak, Monika (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    This paper is devoted to the concept of stability in linear matrix inequalities. Especially to the analysis of a bounded stability region for a multivariable 3DOF system. The study is focused on two different, user defined, bounded LMI regions where poles are calculated with the use on an algorithm and placed in the left half plane of complex variable plane s. It is shown that in the studied case the shape of the region is irrelevant compared to the location of region bounds. And more specifically only the active bounds where the poles are located on it’s limits are significant to controller operation.
  • Salmonowicz, Wiesław; Lisaj, Andrzej; Uriasz, Janusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    This paper presents methods of renewal the GOC certificates in Poland and other countries. Relevant provisions of the SOLAS Convention, the Radio Regulation and the STCW Conventions are discussed. Knowledge of candidates for renewal of the GOC certificates were analysed based on responses to questionnaires. The differences in the methods of training and examinations between selected European countries are presented. Noted the possibilities of GMDSS training at a distance recommended by the STCW Convention. The results and conclusions are presented in the summary arising the difference methods of renewal the GMDSS certificates.
  • Sanecki, Józef; Bauer, Robert W.; Klewski, Andrzej; Stępień, Grzegorz; Beczkowski, Krzysztof; Bauer, Robert W. (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The topic of the publication is the presentation of the method of rapid mapping performation. Rapid mapping are performed in special situations, if a terrain is subjected to significant changes or a quick human reaction is needed. Such performation can be available both in paper and digital versions, published on on-line websites – depending on the needs. For rapid mapping almost every type of image data can be used. In rapid mapping different editorial rules are applicable, it is acceptable to make imaging legible with materials of much less detail. A scale of the design is determined based on the interpretation possibilities, and not on the base of predetermined resolution of the design.
  • Szczęśniak, Bartosz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    EPC models provide a subject widely discussed in the literature. The principles applicable, while creating them have been elaborated upon in numerous publications. An analysis of the existing principles indicates certain inconsistencies as far as the creation of hierarchical models is concerned. The problem of combining equivalent EPC models using process interfaces has been discussed in the author’s previous publication. This paper continues to elaborate upon the problems previously raised, pertaining to EPC model linking by means of hierarchical functions. It addresses principles significant from the perspective of creating and linking such models using the aforementioned approach. Specific questionable situations have been described and individual solutions proposed to enable avoiding them.
  • Walczak, Aleksander (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    This study discusses the principles and methods of assessment based on Port State Control inspections of various flag ships. These inspections are aimed at checking to what extent international convention requirements concerning navigational safety and marine environment protection are fulfilled. This study makes use of annual statistical reports of the Paris Memorandum of Understanding, and incorporates the author’s presentation of calculating methods, on which the assessments of the national merchant vessel fleets are based.
  • Waszczuk, Paweł (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    Article describes extended concept of digital servodrive velocity control algorithms rapid prototyping, which is crucial component of milling machine feed drive equipped with ball screw. Approach presented here describes the case where the user has no access to the internal control structure the servodrive (design widespread in commercially applied CNC solutions), and can only use an additional signal (additive value of torque/current), calculated on the basis of a comparison of the real object and its nominal dynamic model.
  • Więckowski, Dariusz; Jaśkiewicz, Marek (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    The issue of passive safety of pregnant women travelling by car has been discussed. The pregnant woman’s body has been considered as a complex dynamic system subject to various impacts that take place during a car ride. In the field of motorization, much attention is paid (and rightly so) to the issue of safety of pregnant women travelling by car in consideration of road accidents. Motor vehicle accidents are the most important cause of death of pregnant women, according to data published by the National Highway Traffic Safety Administration (NHTSA). In the USA, about 130 000 pregnant women being in the second half of their pregnancy are annually involved in motor vehicle accidents. In this paper, some example solutions have been presented that are to improve the passive safety of riding in a motor car, including those proposed to minimize the injuries that may be sustained in result of an accident. The issue of the possible negative effects of a road accident or collision on a pregnant woman has also been raised. The application of virtual techniques has been discussed and examples of modelling a pregnant woman have been shown. Some research results concerning the deceleration values that might be dangerous for pregnant women have been given, with reference having been made to statistical data on fatal accidents.
  • Wolniak, Radosław (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    There is in a paper presentation of an analysis of the quality of production carried out on the example of the production of raw coal in selected mines. The aim of the publication was to analyze the indicators to determine the extent to which the objectives have been met, and thus whether the process is of sufficient efficiency.
  • Żukowicz, Marek (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2014)
    An important aspects of learning are the theoretical elements of mathematics and the methods of obtaining the function or designbecause it allows for further development of the issues and the ability to apply this problem in practice. The Fourier transform is very useful in science and technology. The article shows how and in what structures is possible to use the Fourier transform in the set Rn. The article describes the project of compact-open topology, which is essential to the construction of the Haar measure and integral. It was also described the concept of the nature of a locally compact topological group, because a group of characters is also essential to the construction of the Fourier transform and inverse Fourier transform. It has been proven that a group of characters is a locally compact topological group, which allows the introduction of the Haar measure. It has given an example application of the theory of Haar integral when calculating the Fourier transform for some of the electronics.
  • Kendra, Martin; Mašek, Jaroslav; Babin, Matej (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    One of the most important characteristics of the railway transport is a safety. Different types of transported goods properties need individual approach to prepare safety goods transportation. It is important to load and fix goods in railway wagons in well done way to reduce the number of accidents on the railway. The bad way of loading and fixing of the goods in the railway wagons can bring a very dangerous results as a damage of the transported goods or accident of the train. This paper deals with the analysis of the railway infrastructure parameters, which affect the well done way of loading and fixing of goods in railway wagons for highcapacity transport.

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