Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "technical object" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
Wyświetlanie 1-10 z 104
Tytuł:
Peculiarities of technical object’s safety level evaluation
Autorzy:
Korostil, J.
Powiązania:
https://bibliotekanauki.pl/articles/360587.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
risk
safety
model
environment
malfunction
technical object
Opis:
In this work is developed method of evaluation safety level, which decreases with floating intensity functioning during technical object. Factors, condition such changes were reviewed. Basing on proposed methodic of detection of various types of risks exists possibility to form constructive algorithms of evaluation of safety level, which allows forming adequate danger counteraction means. One of basic factors, representing dangers, is malfunctions, appearing on technical object.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 40 (112); 100-104
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Motocykl – estetyczny obiekt techniczny
Motorcycle – an aesthetic technical object
Autorzy:
Hadryś, Damian
Powiązania:
https://bibliotekanauki.pl/articles/1841019.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
motocykl
estetyka
forma
motorbike
aesthetics
form
Opis:
Pierwszy motocykl powstał ponad 130 lat temu. Dzisiaj użytkują motocykle z przynajmniej kilku powodów, to znaczy: ich eksploatacja jest stosunkowo tania, łatwo nimi manewrować w zatłoczonych miastach, jazda na motocyklu daje poczucie wolności i niezależności. Niezależnie od powodu użytkowania motocykli, pewna część posiadaczy tych jednośladów czyni usilne starania, aby nadać swoim motocyklom indywidualny i niepowtarzalny charakter. Chęć wyróżniania się z tłumu identycznych seryjnych maszyn jest powodem poświęcania mnóstwa czasu i środków finansowych. Głównym celem niniejszego opracowania było przedstawiono podstawowych możliwości nadania motocyklowi cech indywidualnych pożądanych przez jego właściciela wraz z przykładami. A estetyka pojmowana będzie tu jako ładny i gustowny wygląd.
The first motorcycle was created over 130 years ago. Today people use motorcycles for at least several reasons, that is: their operation is relatively cheap, they are easy to maneuver in crowded cities, riding a motorcycle gives a sense of freedom and independence. Regardless of the reason for using motorcycles, some owners of these two-wheelers vehicles are making great efforts to give their motorcycles individual and unique character. The desire to stand out from the crowd of identical serial machines is a reason to spend a lot of time and financial resources. The main purpose of this study was to present the basic possibilities of giving the motorcycle individual features desired by its owner along with examples. And aesthetics will be understood here as a nice and tasteful look.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2020, 9, 1; 158-171
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The genetic fuzzy based proactive maintenance of a technical object
Autorzy:
Smoczek, J.
Szpytko, J.
Powiązania:
https://bibliotekanauki.pl/articles/246817.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
proactive maintenance
failure prediction
fuzzy logic
genetic algorithm
Opis:
The proactive maintenance is an effective approach to enhance the system availability through real time monitoring the current state of a system. The key part of this method is forecasting the nonoperational states for advanced warning of the failure possibility that can bring the attention of machines operators and maintenance personnel to impending danger facilitate planning preventive and corrective operations, and resources managing as well. The paper presents the HMI/SCADA-type application used to support decision-making process. The proposed approach to proactive maintenance is based on forecasting the remaining useful life of device equipment and delivering the user-defined maintenance strategy developed during system operation. The HMI/SCADA application is used to collect data in form of failures history, changes of operational conditions and performances of a monitored process between failures, as well as heuristic knowledge about process created by experienced user. The data history is used to design the predictive fuzzy models of time between failures of system equipment. The fuzzy predictive models are designed using the genetic algorithm applied to optimize the fuzzy partitions covering the training data examples, as well as to identify fuzzy predictive patterns represented by a set of rules in the knowledge base. The evolutionary learning strategy, which has been proposed in this paper, provides the effective reproduction techniques for searching the solution space with respect to optimization of knowledge base and membership functions according to the fitness function expressed as a ratio of compatibility of fuzzy partitions with data examples to root mean squares error. The proposed application was created and tested on the laboratory stand for monitoring the availability of the overhead travelling crane.
Źródło:
Journal of KONES; 2012, 19, 3; 399-405
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical object environment signals and its elimination from diagnostic model
Autorzy:
Golak, K.
Grądzki, R.
Lindstedt, P.
Powiązania:
https://bibliotekanauki.pl/articles/246588.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
diagnostic
models
environment
compressor blades
oil pipelines
Opis:
Diagnostics of many common technical objects (compressor blades, oil pipelines) has been noticed to be realized mostly on the basis of measured diagnostic signals resulting from object operation without sufficient consideration given to usually difficult to measure signals of its environment. Such approach is inconsistent with basic rule of diagnostics that strictly orders research and analysis of technical condition in environment (PN-90/N-04002). Hence many works occurred concerning diagnostics of technical objects (e.g. compressor blades – in motion and in repose), characterized by the fact, that environment signals are taken into consideration without necessity of measuring them [2-7]. A necessity exists to elaborate new object diagnostic methods in repose and in operation including environment but without need (if possible) of using frequently unavailable or difficult to measure environment signals. This problem is solved by diagnostic methods based on diagnostic models allowing, through special operations, for elimination of real environment. Elimination of environment from model is possible as an effect of proper conduct of diagnostic research that in base form should include measurement of environment and diagnostic signals. In models A2 T12T01 and φT12T01 dependence on environment does not occur. Hence each change of model must be interpreted only as change of object technical condition. Such models might be applied for various objects operating in complex environments (eg. oil pipelines, bearings, etc.).
Źródło:
Journal of KONES; 2013, 20, 2; 121-126
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time between inspections optimization for technical object with time delay
Autorzy:
Jodejko-Pietruczuk, A.
Nowakowski, T.
Werbińska-Wojciechowska, S.
Powiązania:
https://bibliotekanauki.pl/articles/2069363.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
delay-time modelling
single-unit system
Opis:
In the presented paper, authors are concerned with a single-element system liable to costly failure. Failure is taken here to mean a breakdown or catastrophic event, after which the system is unusable until repaired or replaced. The mathematical modelling of maintenance decisions for such a system is provided with the use of delay-time and delay-time analysis. The directions for further research work are defined.
Źródło:
Journal of Polish Safety and Reliability Association; 2013, 4, 1; 35--42
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Availability of a technical object determined in a finite time interval
Autorzy:
Woropay, M.
Migawa, K.
Bojar, P.
Szubartowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/247070.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport system
operation process
semi-Markov model
availability
Opis:
In the article, a method for determination of the technical object availability, GO (r) in a finite time interval x, defined by the time of the transport task duration, has been discussed. All of the study has been presented on the example of a selected system of technical object operation - a system of transport means operation, in a big urban complex (more than 400 thousand inhabitants). Direct performance of the transport tasks in the analyzed system is the responsibility of an executive system consisting of elementary subsystems of the type operator- transport means. Availability of transport means elementary subsystems is crucial for efficient accomplishment of transport tasks. The presented method involves determination of the technical object availability, on the basis of a mathematical model of the operation process which takes place in the studied system, taking into consideration the technical object reliability characteristics. For this purpose, significant states of the transport means operation have been determined and they have been classified in terms of the availability criterion. Basing on this, an event and mathematical models of transport means operation process have been developed, with the semi Markov homogenous model serving as a mathematical model of the studied operation process. Also, values of the analyzed characteristics have been determined.
Źródło:
Journal of KONES; 2011, 18, 4; 555-562
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A family of new generation miniaturized impedance analyzers for technical object diagnostics
Autorzy:
Hoja, J.
Lentka, G.
Powiązania:
https://bibliotekanauki.pl/articles/220894.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
technical object diagnostics
impedance spectroscopy
impedance analyzer
Opis:
The paper presents the family of three analyzers allowing to measure impedance in the range of 10 Ω<|Zx|<10 GΩ in a wide frequency range from 10 mHz up to 100 kHz. The most important features of the analyzer family are: miniaturization, low power consumption, low production cost, telemetric controlling and the use of an impedance measurement method based on digital signal processing (DSP). The miniaturization and other above-mentioned features of the analyzers were obtained thanks to the use of the newest generation of large-scale integration chips: e.g. "system on a chip" microsystems (AD5933), 32-bit AVR32-family microcontrollers and specialized modules for wireless communication using the ZigBee standard. When comparing metrological parameters, the developed instrumentation can equal portable analyzers offered by top worldwide manufacturers (Gamry, Ivium) but outperforms them on smaller dimensions, weight, a few times lower price and the possibility to work in a distributed telemetric network. All analyzer versions are able to be put into medium-volume production.
Źródło:
Metrology and Measurement Systems; 2013, 20, 1; 43-52
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The technical object reliability evaluation based on the parametric and momentary failures
Autorzy:
Lindstedt, P.
Manerowski, J.
Borowczyk, H.
Powiązania:
https://bibliotekanauki.pl/articles/242760.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
reliability
Weibull function
parametric failure
momentary failure
Opis:
The presented paper concerns with the technical object reliability evaluation based on the parametric and momentary failures during the process of object operating. The real world data observation shows that in the case of high quality technical objects the catastrophic failure events are too rare to the credible evaluation of the object’s reliability. For that reason, the parametric and momentary failures are in the centre of attention in this paper. The set of analysed failures was obtained with the classifiers of the field data provided by the monitoring system (the failure alarms) and the diagnostic system (the functional and technical condition parameters deviation). The changes of the functioning condition potential are used to determine the symptoms of momentary failures and the changes in the potential of the technical condition to determine the symptoms of parametric failures (non-total). The assumed reliability characteristics model has the form R(t) = f(_, Rb(t), Rc(t)), (where: Rb(t) and Rc(t) – the estimators of reliability for parametric and momentary failures, symbol ‘_’ denotes catastrophic failures not covered). For the identification of R (t) as an analytical function, the estimators are computed with the field data. The Weibull distribution function due to its flexibility is often used. Such is the case in this paper. Two parameters a and b known as the scale and the shape parameters are estimated with the computerized procedure realizing least-square method. The presented examples show good fit quality even for small set of data.
Źródło:
Journal of KONES; 2016, 23, 2; 239-246
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model diagnostyczny złożonego obiektu technicznego
Diagnostic model of a complex technical object
Autorzy:
Niziński, S.
Rychlik, A.
Powiązania:
https://bibliotekanauki.pl/articles/208637.pdf
Data publikacji:
2011
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
diagnostyka pojazdów mechanicznych
modele diagnostyczne
algorytmy diagnozowania
diagnostics of mechanical vehicles
diagnostic models
diagnosing algorithms
Opis:
Istnieje problem diagnozowania, prognozowania i generowania stanu złożonych obiektów technicznych. W pracy przyjęto wojskowy pojazd mechaniczny, na przykład: czołg, bojowy wóz piechoty, kołowy lub gąsienicowy transporter opancerzony, jako złożony obiekt techniczny. Przedstawiono koncepcję modelu diagnostycznego takich obiektów technicznych.
Modern systems of complex technical objects are based upon the rules and diagnostic models, diagnosing algorithms, methods and diagnostic equipment, and also proper technologies and operation infrastructure. Diagnostic models and diagnosing algorithms are the base of building the effective methods and diagnostic equipment. There are many diagnostic models of technical objects, such as: analytical (structural, modal and reversed), symptom (image regressive recognition, topological, diagnostic and reliable, informative). However, only a few of those models are useful in maintenance processes of complex technical objects. Therefore, there is the need to build diagnostic models of military vehicles, which will enable their application in the practical maintenance of vehicles in the operational state. There has been in existence a problem of diagnosing, prognosis and generation of the state of the complex technical objects. In the paper, a military mechanical vehicle, as: tank, infantry fighting vehicle, armoured personnel carrier, tracked armour personnel carrier was assumed as the complex technical object. There was presented a conception of a diagnostic model of such technical objects.
Źródło:
Biuletyn Wojskowej Akademii Technicznej; 2011, 60, 1; 195-209
1234-5865
Pojawia się w:
Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 104

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies