Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 6

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  proactive maintenance
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
EN
Material handling systems, as an important part of different type of manufacturing processes, face the same challenges as manufacturing industries pushed nowadays forward by innovative ideas and technologies to the next level loudly announced as industry 4.0. Development of the next generation of automated manufacturing systems involves advanced approaches to material handling systems design and their close integration with the higher levels of manufacturing and production control and management, e.g. manufacturing execution systems (MES), enterprise resource planning (ERP). In the presence of increasing demands for manufacturing process optimization, the role of supervisory level of material handling systems is much more advanced today, ensuring not only data acquisition, visualization, monitoring, supervisory control, as well as synchronization with the higher control levels (FEM, ERP), but also providing functionality for supporting maintenance and decision-making processes to reduce downtimes, operations and maintenance costs. The article deals with the integration of control and maintenance functions in the hierarchical control system of a crane. The supervisory system for supporting control and proactive maintenance is prototyped at the laboratory overhead travelling crane. The article presents the controlmeasurement equipment and intelligent software tools implemented in the supervisory control and data acquisition (SCADA) system to aid decision-making process in proactive maintenance. The overview of the main components of the supervisory control and proactive maintenance subsystems is provided, and their respective role in control, supervision, and proactive maintenance is explained. The crane’s supervisory control includes the stereovision-based subsystem applied to identify the crane’s transportation workspace, determine the safety and time-optimal point-to-point trajectory of a payload. The proactive maintenance module consists of the human machine interface (HMI) supporting decision-making process, intelligent tools for upcoming downtime/ failure prediction, and the crane’s girder inspection using the metal magnetic memory technique.
2
Content available Proaktywna strategia eksploatacji
PL
Biorąc pod uwagę współczesne wyzwania konkurencji, dzisiejsi dostawcy usług muszą być bardziej proaktywni w spełnianiu warunków środowiskowych oraz potrzeb klientów. Proaktywna eksploatacja powinna rozpocząć się na etapie projektowania, z ustanowieniem funkcji, błędów funkcjonalnych i rodzajów uszkodzeń. Zrozumienie zachowania w fazie uszkodzenia, specjalne zależności pomiędzy potencjalnym uszkodzeniem, błędami funkcjonalnymi i parametrami diagnostycznymi, są najważniejszymi zadaniami. W następnym kroku projektant powinien zbadać czynności eksploatacyjne, które powinny być zastosowanie jako kryteria projektowe. Modele i sposób postępowania zostały przedstawione w artykule jako zwarty przegląd literatury i wyniki badań laboratoryjnych.
EN
Given challenging competition of today service providers are required to be more proactive in satisfying the environmental conditions and customer needs. Proactive maintenance should start at the design stage with establishing the functions, functional failures and failure modes. The understanding the failure behavior, especially the relationship between potential failures, functional failures and diagnostic parameters is the most important task. In the next step the designer have to explore the maintenance activities as they have to apply to the design criteria. The models and frameworks have been presented in the paper also a comprehensive review of literature and some results of laboratory investigations.
EN
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.
EN
A relevantly defined operational strategy has decisive influence from the point of view of the ability to maintain and improve reliability and safety as well as from the point of view of maintaining manufacturing quality. The paper presents the main tasks and the method of implementing pro-active operation. Particular attention is paid to the issues of selection and adaptation of the methods of diagnosing the low-energy phases of defect development as well as use of a posteriori diagnostic information. Attention is paid to the importance of technical risk analysis.
PL
Odpowiednio określona strategia eksploatacji ma decydujący wpływ na utrzymanie i poprawę niezawodności, bezpieczeństwa oraz utrzymanie jakości produkcji. W pracy przedstawiono główne zadania i sposób realizacji proaktywnej eksploatacji. Szczególną uwagę zwrócono na zagadnienia doboru i adaptacji metod diagnozowania niskoenergetycznych faz rozwoju uszkodzeń oraz wykorzystania aposteriorycznej informacji diagnostycznej. Zwrócono także uwagę na znaczenie prowadzenia analizy ryzyka technicznego.
5
Content available remote Device degradation diagnosis tool
EN
In paper analysis of methods and tools available to implement in manufacture proactive maintenance strategies have been done. Also is describing the CASIP software, so called Computer Aided Safety and Industrial Productivity - monitoring and degradation diagnosis tool. The software application has been presented on the crane example.
PL
W artykule dokonano analizy metod i narzędzi przydatnych w prewencyjnych strategiach obsługiwania maszyn i urządzeń. Opisano program CASIP służący do komputerowego wspomagania analizy bezpieczeństwa i stanu technicznego urządzenia / systemu. Zastosowanie środowiska CASIP przedstawiono na przykładzie suwnic
6
Content available remote Analizy oleju jako intrument utrzymania ruchu. Cz.I.
PL
Omówiono rolę i miejsce monitoringu olejów podczas eksploatacji w strategii utrzymania ruchu, zwanej profilaktyką czynna (proactive maintenance).
EN
The role and the place of monitoring of oils during operations as a reliability maintaining strategy know as an active prevention (proactive maintenance).
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.