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JPSRA 2011 Volume 2, Number 2

Blokus-Roszkowska Agnieszka, Guze Sambor, Kołowrocki Krzysztof, Soszyńska-Budny Joanna Computer-aided identification of complex technical systems operation processes |

In the paper, the procedures of the identification of complex technical system operation process and identifying the distributions of the system conditional sojourn times in the operation states are described. Furthermore, the computer program for identification of the operations processes capabilities with description are presented. As the application of this computer program, the identification of the ferry technical system operation process is shown.[full text] |

Blokus-Roszkowska Agnieszka, Guze Sambor, Kołowrocki Krzysztof, Soszyńska-Budny Joanna Computer-aided characteristics prediction of complex technical systems operation processes |

In the paper, the procedures of the prediction of complex technical system operation process’ characteristics are described. Furthermore, the computer program for prediction of the operations processes capabilities with description are presented. As the application of this computer program, the characteristics’ prediction of the port oil transportation technical system operation process is shown. [full text] |

Blokus-Roszkowska Agnieszka, Guze Sambor, Kołowrocki Krzysztof, Soszyńska-Budny Joanna Computer-aided prediction of the renewal and availability characteristics of complex technical systems |

The procedures of defining the parameters of the availability of the multistate systems in variable operation conditions are shown. Furthermore, the renewal and availability characteristics of the complex technical system are defined. The computer program for prediction of these characteristics capabilities with description are presented. As the application of this computer program, the prediction the renewal ad availability characteristics of the exemplary complex technical system is shown. [full text] |

Blokus-Roszkowska Agnieszka, Kołowrocki Krzysztof Computer aided prediction of improved complex technical systems reliability |

In the paper there is presented the computer program for reliability analysis of complex technical systems with reserved and improved components along with computer program description and application. The computer program allows for automatic reliability characteristics prediction of the improved complex technical systems with hot and cold single reservation of their components and of the improved complex technical systems with reduced intensities of departure from the reliability state subsets of their components. Under the assumption that system components have exponential reliability functions, the unconditional reliability function, the mean values and standard deviations of the unconditional lifetimes in the reliability state subsets and in particular reliability states, the system risk function and the moment when the system risk exceeds a permitted level of the complex technical systems before and after their improvement are determined. [full text] |

Blokus-Roszkowska Agnieszka, Kołowrocki Krzysztof, Fu Xiuju Integrated software tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety - Part 1 - Integrated software tools description |

The paper is composed of six parts and presents the software tools created in the scope of the Poland-Singapore Joint Research Project, the Integrated Safety and Reliability Decision Support System - IS&RDSS. In the paper first part, there are briefly described all computer programs with pointed aims. Dependencies between computer programs and possible transitions using this integrated package of software tools are presented at the scheme algorithm. In the remaining paper parts, there is presented the application of the computer programs, being in the package of software tools, to the reliability analysis of an exemplary complex technical system.[full text] |

Blokus-Roszkowska Agnieszka, Kołowrocki Krzysztof, Fu Xiuju Integrated software tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety - Part 2 - Integrated software tools application – Exemplary system operation and reliability unknown parameters identification |

There is presented the application of the integrated software tools to the operation and reliability models of an exemplary complex technical system unknown parameters identification. There are performed in the paper, the exemplary system operation and reliability analysis and modelling. The identification of the probabilities of transitions this system operation process between the operation states and the conditional mean values of this process sojourn times at the particular operation states because of the lack of statistical data is performed throw the arbitrary fixing their values assumption. Next using the computer program CP 8.3 the automatic evaluation of the system components unknown intensities of departures the reliability state subsets and the identification of the exponential forms of their multistate reliability functions on the arbitrarily fixed statistical data coming from the system components states changing processes are performed as well. [full text] |

Blokus-Roszkowska Agnieszka, Kołowrocki Krzysztof, Fu Xiuju Integrated software tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety - Part 3 - Integrated software tools application – Exemplary system operation and reliability characteristics prediction |

There is presented the application of the integrated software tools to the operation and reliability of an exemplary complex technical system prediction. The computer program CP 8.5 is used to determine the unconditional mean sojourn times and the limit transient probabilities of the exemplary system operation process at the particular operation states evaluations. Using the computer program CP 8.6 there are performed the evaluations of the exemplary system unconditional multistate reliability function, the expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the mean values of its lifetimes in the particular reliability states. Finally, in the case when the system is repairable, its renewal and availability characteristics are estimated from the results of computer program CP 8.8. [full text] |

Blokus-Roszkowska Agnieszka, Kołowrocki Krzysztof, Salahuddin Habibullah Mohamed Integrated software tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety - Part 4 - Integrated software tools application – Exemplary system operation and reliability optimization |

There is presented the application of the integrated software tools to the operation and reliability of an exemplary complex technical system optimization. First using the computer program CP 8.9 there are determined the optimal limit transient probabilities of the exemplary system operation process at the particular operation states maximizing the system lifetime in the reliability states not worse than the critical reliability state and its optimal sojourn times at the particular operation states. Program CP 8.9 allows also for automatic evaluation of the exemplary system optimal unconditional multistate reliability function, the optimal expected values and standard deviations of its unconditional lifetimes in the reliability state subsets and the optimal mean values of its lifetimes in the particular reliability states. Moreover, in the case when the system is repairable, its optimal renewal and availability characteristics are obtained using the computer program CP 8.11. [full text] |

Blokus-Roszkowska Agnieszka, Kołowrocki Krzysztof, Salahuddin Habibullah Mohamed Integrated software tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety - Part 5 - Integrated software tools application – Improved exemplary system operation and reliability characteristics prediction |

There is presented the application of the integrated software tools to the reliability of the improved exemplary complex technical system prediction. There are considered three ways of the exemplary system reliability improvement, i.e. a hot single reservation of its components, a cold single reservation of its components and replacing its components by the improved components with reduced intensities of departure from the reliability state subsets. Automatically obtained, using the computer program CP 8.16, the evaluations of these ways improved exemplary system unconditional multistate reliability function, the expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the mean values of its lifetimes in the particular reliability states are presented. Moreover, in the case when the improved system is repairable, its renewal and availability characteristics are estimated using the computer program CP 8.8 with appropriately given data. [full text] |

Blokus-Roszkowska Agnieszka, Kołowrocki Krzysztof, Salahuddin Habibullah Mohamed Integrated software tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety Part 6 Integrated software tools application – Exemplary system operation cost analysis and maintenance optimization |

The integrated software tools are applied to the exemplary system operation cost analysis and maintenance optimization. Using the computer program CP 8.12 there is obtained the evaluation of the cost before and after the exemplary system operation process optimization and next the computer program CP 8.13 is applied for operation cost analysis of the improved exemplary system. The methods of corrective and preventive maintenance policy maximizing availability and minimizing renovation cost of the complex technical systems in variable operation conditions are illustrated for the analyzed exemplary system using equivalently the computer program CP 8.14 for maintenance policy maximizing system availability and CP 8.15 for minimizing system renovation cost. [full text] |

Kołowrocki Krzysztof, Mazurek Jolanta, Soszyńska-Budny Joanna Computer aided prediction of complex technical systems operation cost |

There is presented the computer program is based on methods and algorithms for prediction of the operation cost of the complex technical system in variable operation conditions. The program allows to determine of the costs of the non-repairable and repairable complex technical systems before and after their operation processes optimization. The procedure of the computer program use and its application to operation cost analysis of the port oil transportation system are given. [full text] |

Kołowrocki Krzysztof, Mazurek Jolanta, Soszyńska-Budny Joanna Computer aided operation cost prediction of complex technical systems with reserve and improved components |

There is presented the computer program based on methods and algorithms for prediction of the operation cost of the complex technical system in variable operation conditions. The program allows to determine of the costs of the non-repairable and repairable improved complex technical systems before and after their operation processes optimization. The procedure of the computer program use and its application to operation cost analysis of the exemplary complex technical system. [full text] |

Kołowrocki Krzysztof, Soszyńska-Budny Joanna, Ng Kien Ming Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 1 - Integrated Safety and Reliability Decision Support System – IS&RDSS |

The paper is composed of six parts and presents the main practical tool created in the scope of the Poland- Singapore Joint Research Project, the Integrated Safety and Reliability Decision Support System - IS&RDSS. In the paper first part, there are presented the procedure of the IS&RDSS usage in the form of detailed and clear scheme-algorithm and the list of the project final reports and these reports supporting bibliography. In the remaining paper parts, there is presented the IS&RDSS application to the reliability analysis of an exemplary complex technical system. [full text] |

Kołowrocki Krzysztof, Soszyńska-Budny Joanna, Ng Kien Ming Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 2 - IS&RDSS Application – Exemplary system operation and reliability unknown parameters identification |

There is presented the IS&RDSS application to the operation and reliability models of an exemplary complex technical system unknown parameters identification. There are performed in the paper, the exemplary system operation and reliability analysis and modelling. The identification of the probabilities of transitions this system operation process between the operation states and the conditional mean values of this process sojourn times in the particular operation states because of the lack of statistical data is performed throw the arbitrary fixing their values. assumption. The evaluation of the system components unknown intensities of departures the reliability state subsets and the identification of the exponential forms of their multistate reliability functions on the arbitrarily fixed statistical data coming from the system components states changing processes are performed as well. [full text] |

Kołowrocki Krzysztof, Soszyńska-Budny Joanna, Ng Kien Ming Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 3 - IS&RDSS Application – Exemplary system operation and reliability characteristics prediction |

There is presented the IS&RDSS application to the operation and reliability of an exemplary complex technical system prediction. There are performed, the unconditional mean sojourn times and the limit transient probabilities of the exemplary system operation process at the particular operation states evaluations. The evaluations of the exemplary system unconditional multistate reliability function, the expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the mean values of its lifetimes in the particular reliability states are performed as well. Moreover, in the case when the system is repairable, its renewal and availability characteristics are estimated. [full text] |

Kołowrocki Krzysztof, Soszyńska-Budny Joanna, Xie Min Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 4 - IS&RDSS Application – Exemplary system operation and reliability optimization |

There is presented the IS&RDSS application to the operation and reliability of an exemplary complex technical system optimization. There are determined, the optimal limit transient probabilities of the exemplary system operation process at the particular operation states maximizing the system lifetime in the reliability states not worse than the critical reliability state and its optimal sojourn times at the particular operation states. There are evaluated the exemplary system optimal unconditional multistate reliability function, the optimal expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the optimal mean values of its lifetimes in the particular reliability states are. Moreover, in the case when the system is repairable, its optimal renewal and availability characteristics are found. [full text] |

Kołowrocki Krzysztof, Soszyńska-Budny Joanna, Xie Min Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 5 - IS&RDSS Application – Improved exemplary system operation and reliability characteristics prediction |

There is presented the IS&RDSS application to the reliability of the improved exemplary complex technical system prediction. There are considered three ways of the exemplary system reliability improvement, a hot single reservation of its components, a cold single reservation of its components and replacing its components by the improved components with reduced intensities of departure from the reliability state subsets. The evaluations of this ways improved exemplary system unconditional multistate reliability function, the expected values and the standard deviations of its unconditional lifetimes in the reliability state subsets and the mean values of its lifetimes in the particular reliability states are performed. Moreover, in the case when the improved system is repairable, its renewal and availability characteristics are estimated. [full text] |

Kołowrocki Krzysztof, Soszyńska-Budny Joanna, Xie Min Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 6 - IS&RDSS Application – Exemplary system operation cost analysis and maintenance optimization |

The way of operation cost analysis of the complex technical system at the variable operation conditions and its application to the evaluation of the cost before and after the exemplary system operation process optimization is presented. The methods of corrective and preventive maintenance policy maximizing availability and minimizing renovation cost of the complex technical systems in variable operation conditions are presented and applied to the exemplary system. [full text] |

Kołowrocki Krzysztof, Soszyńska-Budny Joanna, Xie Min Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 7 - IS&RDSS Application – Exemplary system operation and reliability new strategy |

The paper presents the collection of the results concerned with the exemplary system operation, reliability, availability, maintenance and cost analysis, modelling, prediction and optimization coming from the Integrated Safety and Reliability Decision Support System - IS&RDSS application performed in its six previous parts. On the basis of the collected operation and reliability parameters and characteristics of the exemplary system before and after its operation process optimization, there is suggested its operation and reliability new strategy. [full text] |

Soszyńska-Budny Joanna Reliability and risk evaluation of a container gantry crane at variable operation conditions |

The joint model of the system operation process and the system multi-state reliability is applied to the reliability and risk evaluation of the container gantry crane. The container gantry crane is described and its operation process unknown parameters are identified on the basis of real statistical data. The mean values of the container gantry crane operation process unconditional sojourn times in particular operation states are found and applied to determining this process transient probabilities in these states. The container gantry crane different reliability structures in various its operation states are fixed and their conditional reliability functions on the basis of data coming from experts are approximately determined. Finally, after applying earlier estimated transient probabilities and system conditional reliability functions in particular operation states the unconditional reliability function, the mean values and standard deviations of the container gantry crane lifetimes in particular reliability states, risk function and the moment when the risk exceeds a critical value are found. [full text] |