Temat: system design - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Management of newness in an assembly system
Autorzy:: Schedin, J.
Svensson-Harari, N.
Jackson, M.
Deleryd, M.
Powiązania:: https://bibliotekanauki.pl/articles/100093.pdf
Data publikacji:: 2016
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: newness
vehicle
quality assembly system design
Opis:: The need for new products to suit differentiated customer needs and shorter product life-cycles, forces manufacturers to change or modify products and production systems at more frequent intervals. The objective of this paper is to discuss management of newness within assembly system design in the vehicle industry. Based on a case study covering four assembly development projects, a model using the quality concept of 7M is presented to evaluate the level of newness. The results show that the model provides a promising platform for evaluation of newness.
Źródło:: Journal of Machine Engineering; 2016, 16, 1; 92-108
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Idea of wheel-legged robot and its control system design
Autorzy:: Szrek, J.
Wojtowicz, P.
Powiązania:: https://bibliotekanauki.pl/articles/199933.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: wheel-legged robot
control system design
Opis:: The wheel-legged robot is a vehicle with many degrees of freedom. Thanks to its peculiar design, depending on the need, the vehicle will use one of its ways of moving: travelling on wheels or walking (in special situations), which enhances its locomotive properties. The paper presents the robot’s kinematic wheel suspension system, general operation strategy and control system. The application responsible for robot control and data visualization is described. Finally, selected tests of the algorithms, carried out on the robot prototype, are presented.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2010, 58, 1; 43-50
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Technical and organizational conditions of designing warehouses with different functional structures
Autorzy:: Jacyna, M.
Lewczuk, K.
Kłodawski, M.
Powiązania:: https://bibliotekanauki.pl/articles/247132.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: warehouse designing
warehousing
logistics system design
modelling
Opis:: The article presents a discussion on designing warehouse facilities and processes as a part of logistics systems. The main technical and organizational conditions of designing and modelling warehouses as well as internal and external factors influencing warehouse operation are presented. The stochastic nature of these factors is indicated. In the next part, a six-piece model of the warehouse facility is presented and discussed. The model embraces spatial conditions of the object and hierarchical division of space for functional reasons, internal transport subsystem with its resources, warehousing process and a set of organizational assumptions for modelling and designing. Typical elements of warehousing process, classification of warehouses due to their functions and tasks, functional classification of warehouse facilities, technological and organizational conditions of designing warehouse facilities, warehouse designing loop, the determinants of warehouse designing, the elements of the model of a warehouse, functional structure of a warehouse, warehousing process, internal transport system, logistics task, work organization rules and informatics system are presented in the paper.
Źródło:: Journal of KONES; 2015, 22, 3; 49-58
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Design of mechanical and control system of a walking machine
Autorzy:: Zielińska, T.
Heng, J.
Goh, T.
Powiązania:: https://bibliotekanauki.pl/articles/281560.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: walking machines
mechanical and control system design
hexapods
Opis:: Projekt systemu mechanicznego i systemu sterowania maszyny kroczącej. Autorzy opisują problemy projektowe aktualnie budowanej sześcionożnej maszyny kroczącej. Najpierw opisana jest struktura machaniczna, następnie struktura sprzętowa. Dalej przedyskutowano zagadnienia związane z syntezą systemu sterowania, planowaniem chodu oraz detekcją siły i odległości. Podane są wybrane wyniki eksperymentów.
Źródło:: Journal of Theoretical and Applied Mechanics; 2000, 38, 3; 709-725
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: UAV program motion and control in prescribed mission
Programowany ruch i sterowanie UAV w zadanej misji
Autorzy:: Blajer, W.
Graffstein, J.
Krawczyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/281074.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: aerospace dynamics and control
inverse simulation
control system design
Opis:: The paper deals with the inverse simulation problem of aircraft general motion. The aircraft is constrained to follow a specified 3D trajectory (two program constraints), and two other demands, are imposed on airframe attitude with respect to the trajectory and on flying speed. The guidelines for effective modelling of aircraft prescribed trajectory flight are discussed, and a method for computing time histories of state variables and program control (that ensures the programmed motion realization) is developed. Some results of numerical simulations are reported.
Praca dotyczy zagadnienia symulacji odwrotnej ruchu samolotu. Żąda się, by samolot wykonywał lot po zadanej trajektorii przestrzennej (dwa więzy programowe) a dodatkowymi wymaganiami są narzucone zmiany konfiguracji płatowca względem trajektorii oraz prędkości lotu. Dyskutuje się sposób modelowania tak określonego ruchu programowego oraz przedstawia metodę wyznaczania przebiegów w czasie zmiennych stanu tego ruchu oraz wymaganego sterowania samolotem. Zamieszcza się wyniki symulacji numerycznych.
Źródło:: Journal of Theoretical and Applied Mechanics; 1998, 4; 963-978
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: On the average file unavailability for specific storage disk arrangements in Cloud systems
Autorzy:: Besson, M.
Tanguy, Ch.
Grall, A.
Powiązania:: https://bibliotekanauki.pl/articles/2069206.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: cloud
storage system design
k-out-of-n systems
Opis:: Cloud computing is a growing field since data storage is becoming ever more decentralized. Providers of Cloud solutions want to insure the safety and availability of their customers’ data. In order to increase these performance indices, several storage policies have been implemented: replication, erasure codes, etc. A few of them rely on randomized procedures. In this paper, we focus on the influence of a specific storage policy on the availability of a given file. Taking only disk failures into account, we provide a general formula for the average file unavailability U ̅, which is a generalization of the well-known k-out-of-n problem, to which it reduces when disks are identical. We then calculate U ̅ for several configurations when disks have different reliabilities, and show that the disk arrangement has a major impact on the result. We also provide an approximation which could be helpful for more complex arrangements.
Źródło:: Journal of Polish Safety and Reliability Association; 2015, 6, 1; 23--30
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Rozproszone systemy monitoringu w diagnostyce maszyn
Distributed monitoring systems in machine diagnostic
Autorzy:: Uhl, T.
Hanc, A.
Powiązania:: https://bibliotekanauki.pl/articles/328227.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: system monitoringu
telediagnostyka
diagnostyka maszyn
monitoring system design
telediagnostics
machine diagnostics
Opis:: W pracy przedstawiono nowe rozwiązania sprzętowo - programowe w diagnostyce obiektów technicznych w oparciu o technologię rozproszonych układów pomiarowych. Podstawową jednostką takiego systemu jest układ zbierania i rejestracji danych do którego dostęp zapewniony jest poprzez przeglądarkę stron internetowych. Przedstawione zostanie praktyczne rozwiązanie zaproponowanego systemu do realizacji diagnostyki maszyn wirnikowych.
In the paper a new concept of monitoring system based on distributed measuring systems technology. Hardware and software solutions applied in the monitoring system are detail discussed. The basic unit in proposed system is embedded measuring system with direct interface to Internet. Embedded home page microserwer build in the system gives possibility to access to the data from Internet Explorer or Netscape without any application software. Implementation of distributed system for rotating machinery diagnostics is described.
Źródło:: Diagnostyka; 2002, 27; 60-66
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Analiza wybranych koncepcji w obszarze projektowania wymagań
Analysis of Some Concepts in the Field of Design Requirements
Autorzy:: Stanek, Stanisław
Powiązania:: https://bibliotekanauki.pl/articles/591953.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Ekonomiczny w Katowicach
Tematy:: Projektowanie systemów informatycznych
Tworzenie oprogramowania
Information system design
Software development
Opis:: On the eve of the new millennium, the design requirements continue to make significant difficulties to designers. This article aims to analyze three research trends: software engineering, user-oriented approach and agile approach. The paper is to identify, describe, and to discuss mechanisms selected from among those trends.
Źródło:: Studia Ekonomiczne; 2013, 128; 137-162
2083-8611
Pojawia się w:: Studia Ekonomiczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Mathematical model of uav in numerical simulation of the recovery manoeuvre in a perturbed flight
Autorzy:: Krawczyk, M.
Graffstein, J.
Maryniak, J.
Powiązania:: https://bibliotekanauki.pl/articles/279807.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: aerospace dynamics and control
inverse simulation
control system design
UAV
Opis:: The study presents a mathematical model in terms of the Boltzmann-Hamel equations representing a controlled Unmanned Aerial vehicle (UAV) motion. The widely known problems with takeoff and recovery manoeuvres of UAV are considered. Both manoeuvres are characterised by low velocities, large angles of attack and relatively low efficiency of the control, so the sophisticated procedures are then necessary to ensure flight safe during these phases of motion. Some results of the first phase of recovery manoeuvre numerical simulations are reported.
Model matematyczny BSL w numerycznej symulacji manewru odzysku w locie zaburzonym. W pracy przedstawiono model dynamiki lotu sterowanego samolotu bezpilotowego, który wyprowadzono posługując się formalizmem Boltzmanna-Hamela. Szeroko znane są problemy występujące podczas startu i odzysku tego rodzaju obiektów. Oba manewry charakteryzują się małą prędkością lotu, występowaniem dużych kątów natarcia oraz stosunkowo małą skutecznością sterowania, co powoduje konieczność opracowywania wyrafiniwanych procedur pozwalających na bezpieczną realizację tych faz lotu. W pracy zaprezentowano wyniki symulacji numerycznej początkowej fazy manewru odzysku, jaki opracowano dla samolotu bezpilotowego SOWA.
Źródło:: Journal of Theoretical and Applied Mechanics; 2000, 38, 1; 121-130
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Procedura identyfikacji otoczenia w fazie projektowania systemu transportu wewnętrznego z wykorzystaniem pojazdów AGV
Guidelines which are used in environment identification during design phase of AGV system project in internal transport
Autorzy:: Poturaj, Honorata
Lewandowski, Tadeusz
Powiązania:: https://bibliotekanauki.pl/articles/1194467.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: system transportu wewnętrznego
pojazdy AGV
projektowanie systemu
internal transport system
AGV vehicles
system design
Opis:: The article presents guidelines, wchich are used in environment identification during design of AGV system in internal transport. We presented proprietary tools for the process of identifying the needs, conditions and requirements of the client, which prepare the implementation of the AGV transport system.
Źródło:: Journal of TransLogistics; 2020, 6, 1; 201-210
2450-5870
Pojawia się w:: Journal of TransLogistics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The use of PSS2A system stabilisers to damp electromechanical swings in medium voltage networks with distributed energy sources
Autorzy:: Paszek, Stefan
Nocoń, Adrian
Pruski, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/2135732.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electromechanical swings
distributed generation
medium-voltage network
power system stabilisers
power system design
Opis:: In this paper, the design issue of effective damping of electromechanical swings in a medium voltage network with distributed generation by the use of a PSS2A type power system stabiliser is described. This stabiliser was installed in the generating unit with the highest rated power. Time constants of correction blocks, as well as the main gain, were determined by analyzing a single-machine system, generating unit – infinite bus. The time constants were calculated on the basis of the frequency-phase transfer functions both of the electromagnetic moment to the voltage regulator reference voltage and of the generator voltage to the voltage regulator reference voltage, under the assumption of an infinite and real value of the generating unit inertia time constant for various initial generator loads. The main stabiliser gain was calculated by analyzing the position, on the complex plane, of eigenvalues of the state matrix of the single-machine system, linearised around a steady operating point, at the changed value of this gain.
Źródło:: Archives of Electrical Engineering; 2022, 71, 3; 717--729
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Addressing Water Scarcity in Samdrupjongkhar Thromde, Bhutan : feasibility Study and Design of a Sustainable Gravity Water Supply System
Autorzy:: Tamang, Phurba
Tenzin, Rigden Yoezer
Tshering, Dawa
Sharma, Vasker
Powiązania:: https://bibliotekanauki.pl/articles/31340454.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: water supply
gravity water flow
EPANET analysis
water pipe system design
Opis:: The provision of a reliable water-supply system is essential for the development and well-being of urban communities. Samdrupjongkhar Thromde, located in Bhutan, has been facing water supply challenges despite the presence of a water treatment plant. The non-perennial nature of the current water source coupled with malfunctions in water pumps has led to acute water shortages in the municipality. To address this issue, this study carried out a feasibility investigation and designed a gravity water supply system by conducting an EPANET (Environment Protection Agency Network Evaluation Tool) analysis. The study involved field visits to identify potential water sources, and a topographic survey using RTK (Real Time Kinematics) technology to determine the optimal pipeline route. The EPANET analysis was then conducted to evaluate the hydraulic performance of the initial route. Based on these findings, a final water pipeline route was selected considering factors such as terrain characteristics, construction feasibility, avoidance of negative water pressure, and minimum encroachment of private land. The results showed that the maximum pressure head within the pipeline system reached 296 m with a maximum water flow velocity of 5 m/s. However, at the outlet, the pressure head decreased to 70 m and the velocity decreased to 2 m/s. Two Break Pressure Tanks (BPT) were strategically placed to achieve this pressure reduction. The chosen pipe materials and their placement ensure the long-term reliability and functionality of the water supply system, while considering maintenance convenience and terrain characteristics.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2023, 70, 1; 101-113
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Formation of a Favorable Filtration Regime of Soils in Saline Areas of the Danube Delta Rice Irrigation Systems
Autorzy:: Turcheniuk, Vasil
Rokochinskiy, Anatoliy
Kuzmych, Lyudmyla
Volk, Pavlo
Prykhodko, Nataliia
Powiązania:: https://bibliotekanauki.pl/articles/31340455.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: water supply
gravity water flow
EPANET analysis
water pipe system design
Opis:: The environmental state of rice irrigation systems (RIS) is determined by many factors, including natural ones (soil, topographical, hydrogeological, and climatic factors) and technological ones (irrigation norm, design, and parameters of irrigation and drainage networks, etc). The most significant influence on the ecological reclamation state of the RIS carries is effected by its drainage network (DN). The need to maintain a flushing water regime with specific filtration rates to prevent secondary salinization in the Danube Delta’s rice systems is a crucial aspect of managing these agricultural areas. In the saline areas of rice systems located in the Danube Delta, the DN must ensure the maintenance of the flushing water regime with the rates of filtration ranging between 10 to 12 mm/day. This is a prerequisite for preventing secondary salinization of irrigated lands of these rice systems. According to the results of studies, the filtration from the surface of the irrigation checks of the Danube Delta RIS has been established, and its values in the area of the rice check vary significantly. Different intensity of filtration in the area of rice checks causes the difference in mineralization of groundwater and in the content of salts in the soil. This leads to the fact that the same rice check created various natural reclamation conditions and different productivity of cultivated crops.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2023, 70, 1; 115-128
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Computational environment HYDRO-PATH as a flexible tool for operational rainfall-runoff model design
Autorzy:: Tokarczyk, T.
Szalińska, W.
Tiukało, A.
Jełowicki, J.
Chorążyczewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/108540.pdf
Data publikacji:: 2016
Wydawca:: Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:: rainfall-runoff model
operational application
computational environment
model development
system design
Opis:: The overall objective of the ongoing work is to develop the computational environment HY DRO-PATH as a flexible tool for forecasting runoff from catchment areas for various hydrometeorological conditions while taking into account the information available on a real-time basis. Ensuring the model’s operational reliability and reducing the uncertainty of generated forecasts is accomplished through the adjustment of both the internal structure of the model and the spatial representation of the computational grid to the physiographical, hydrological and climatological characteristics of a given basin. The research focused on the development of methods for selecting the optimal model structure and parameters by analysing the results obtained for different model structures. This is achieved through the computational environment, in which it is possible to implement different types of hydrological rainfall-runoff models. These models have a unified system of data input, parameter optimisation rules, and procedures for result generation. The developed elements of the computational environment correspond to generation potential of models with a given structure and complexity. Furthermore, within the framework of HY DRO-PATH the following components were developed: an application programming interface (API), a data assimilation module, a module for computational representation of a real object, and a module for the estimation and optimisation of model parameters. The developed computational environment was applied to prepare a version of TOPO-Flex and perform hydrological validation of the model’s results. The hydrological validation was performed for selected flood events in the Bystrzyca Dusznicka subbasin of the Nysa Kłodzka River.
Źródło:: Meteorology Hydrology and Water Management. Research and Operational Applications; 2016, 4, 1; 65-77
2299-3835
2353-5652
Pojawia się w:: Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Milk-run routing and scheduling subject to a trade-off between vehicle fleet size and storage capacity
Autorzy:: Bocewicz, Grzegorz
Bożejko, Wojciech
Wójcik, Robert
Banaszak, Zbigniew
Powiązania:: https://bibliotekanauki.pl/articles/406978.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: milk-run system design
routing
scheduling
trade-oﬀ point
Industry 4.0
Opis:: The objective of the milk-run design problem considered in this paper is to minimize transportation and inventory costs by manipulating ﬂeet size and the capacity of vehicles and storage areas. Just as in the case of an inventory routing problem, the goal is to ﬁnd a periodic distribution policy with a plan on whom to serve, and how much to deliver by what ﬂeet of tugger trains travelling regularly on which routes. This problem boils down to determining the trade-oﬀ between ﬂeet size and storage capacity, i.e. the size of replenishment batches that can minimize ﬂeet size and storage capacity. A solution obtained in the declarative model of the milk-run system under discussion allows to determine the routes for each tugger train and the associated delivery times. In this context, the main contribution of the present study is the identiﬁcation of the relationship between takt time and the size of replenishment batches, which allows to determine the delivery time windows for milkrun delivery and, ultimately, the positioning of trade-oﬀ points. The results show that this relationship is non-linear.
Źródło:: Management and Production Engineering Review; 2019, 10, 3; 41-53
2080-8208
2082-1344
Pojawia się w:: Management and Production Engineering Review
Dostawca treści:: Biblioteka Nauki

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