Whatever kind of passenger transport it is, one of the most important value, which characterizes supply of transport service is the number of courses for zone in some direction [5]. This article presents objective coefficient of availability of public transport in time, just like inhabitants observe it.
The paper presents a method for reading reporting marks on sea containers utilizing a digital image of the container door. It is assumed that the input data is the image in RGB colour space and as output data are accounted the characters of the container markings. The method was implemented and tested using a set of container images. The algorithm can be incorporated in a system...
This research presents the existing problem of railway elements and motor - vehicle road elements at their intersections. The work also concerns issues of designing and constructing railway crossings at the intersections of motor-vehicle and rail transportation. A new conception of vibroisolated railway crossing is introduced, based on the analysis of a discrete-continuous system.
On the job one introduced the description of investigative stands and the methodics of marking of static characterizations, quasi-dynamic and dynamic. One introduced the course of the torque at the start of the metal-clutch about the large torsional susceptibility and the reaction of the clutch on the extortion with the impulse-turning moment.
The term steerability is widely used in the motion theory of wheel and track-laying machines, water and air vehicles, spacecraft. Steerability is a property of a transport machine to submit to the managing influence. Steerability of the machine is defined by its reaction to managing influence on the part of managing in the form of changing travelling course or lateral kinematical...
Investigation of fatigue processes on the basis of domain structure imaging makes possible identification of material zones and fatigue degree and will permit the introduction of changes in the wheel construction at the design stage. Investigation results of domain structure of wheelset's rolling surface subjected to contact loads and material samples subjected to cyclic loads...
The paper discusses some commonly used methods of hydraulic absorber testing. Disadvantages of the methods are described. A vibro-acoustic method is presented and recommended for practical use on existing test rigs. The method is based on continuous wavelet analysis combined with neural classifier and 25-neuron, one-way, three-layer back propagation network. The analysis...
Main load in operation of flexible coupling in a drive system is concentrated on elastomer part. The paper presents modeling of contact operation of the hub claws and elastomer teeth in a single insert flexible coupling ASR type.
Plastic deformation mode of the great coupling diaphragms is the subject matter of this article. The model has been created on the experimental way through the research on a wheel excavator. The presented analysis algorithm of the aggregated data is a basis for identification of the causes and the area of the plastic deformation in the great coupling diaphragms.
This research presents the concept of vibroisolation of railroad lines by example of one of the solutions designed by the author, and contains comparison of distribution of energy carried out to the subgrade of traditional and vibroisolated railroad tracks.
In the paper it was shown what influence the steel chemical composition has onto the possibilities of using it in the process of cold shaping. Researches were made on closed sections used in constructions of automotive vehicles, made of steel quality S235JRH, S355J2H and L360MB. They included the analysis of the chemical composition, the examination of their mechanical properties...
In working heavy machines, eg. in mining machines, builder's and of road, appear loads of dynamics and percussive. These loads demand usages in systems of driving machines of flexible torsional coupling. In the elaboration one showed new constructions of metal coupling, very flexible torsionally which one worked out in the Institute of Mining Mechanization at the Silesian...
Main effort of every design engineer is reduction of torsional oscillation in any mechanical system. At present this problem can be solved by means of a suitable modification of dynamic properties of flexible shaft couplings according to dynamics in the given systems. But the dynamic properties of nowadays-applied flexible couplings are not unchangeable because of aging and...
The railway transport in a maximum degree is conservative. For example, the design of wheelsets, practically, has not changed for the last 150 years. Such a long life was given to this tendency by its high reliability and simplicity of the design. It is considered, that the rigid connection of wheels by means of an axis provides a self-centering of wheelset within the limits of a...
The present paper describes the CAE-based approach for durability analysis that is being implemented in Universal Mechanism software to predict the fatigue damage of parts of mechanical systems. The approach predicts fatigue strength of structural components of machines and mechanisms based on results of simulating their dynamics taking into account real working conditions. An...
In the new budget of European Union for 2007 - 2013 year were foreseen to Poland about 60 mld euro, for projects connected with development of infrastructure, modernization and restructuring of industry, agriculture, administration; financing from funds: structural, conjunction, education, researches, etc. For the Upper Silesia Province that is a problem not only to get most of...
The paper presents the investigations conducted in the Fraunhofer Institute (IZFP Saarbrucken) by use of a BEMI microscope (BEMI= Barkhausenrausch- und Wirbelstrom-Mikroskopie or Barkhausen Noise and Eddy Current Microscopy). The ability to detect cyclic and contact fatigue load influences has been investigated. The measurement amplitudes obtained with Barkhausen Noise and Eddy...
The operating problems of the ferry approach ramp have been presented in the paper. The incorrect idea of approach bank drive system and abnormal operator acting, have been both the reasons of break-down and damage of a ferry terminal. The evaluation of the run of events and finding the reasons of the failure, have been possible thanks to the analysis of drives and control systems.
Proposed model of informational system supposes improvement of new conceptual method on the work with e-signature in transport informational systems. Problems and aims that may be solved with the help of this system and the most important economical and technical advantages of the proposed system in comparison with traditional methods of e-signing use are marked out.
Average combustion temperatures inside a turbo diesel engine for the same load and the same total doze of fuel for two rotational speeds: 2004 [rpm] and 4250 [rpm] are presented in this paper. The aim of this work is also the evaluation of the influence of the temporary course of the fuel injection characteristics on forming temperature in the engine cylinder space for these...
The article deals with the methods of calculation and optimization of dynamic processes in vibroexcitated constructions with dynamic absorbers. The improved constructions of such absorbers for vehicle wheels vibration suppression are discussed.
The article refers to the idea of the use of electronic repository to store standardised scheme of processes between a Logistics Service Provider and its business partners. Application of repository for automatic or semi-automatic configuration of interoperability in electronic data interchange between information systems of different companies based on transport (road, rail, sea...
Fulfilling high requirements of safety and reliability is an important question in devices of railway traffic control. Increased safety in computer systems is reached in the simplest way through redundancy of hardware and software, but also with other methods. A microprocessor system of automatic SPA-4 level crossing, manufactured by Bombardier Transportation Katowice (Poland...
Industrial processes' control systems based on PLC controllers play today a very important role in all fields of transport, including also sea transport. Construction of control systems is the field of engineering, which has been continuously evolving towards maximum simplification of system design path. Up to now the time needed for the system construction from the design to...
The marine safety systems, using European Safe Sea Net, help safe data sending. They make planning and guarding marine transport possible. Two systems work in Poland according to this system. They are the Maritime Safety Information Exchange System (SWIBŻ) and the Harbour and Cargo Information System (PHICS).