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Wyszukujesz frazę "technical reliability" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Newtonian and Bergsonian time in technical diagnostics
Autorzy:
Borowczyk, H.
Lindstedt, P.
Manerowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/247474.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
technical diagnostics
reliability
Newtonian time
Bergsonian time
Opis:
Testing and reasoning are two main closely related diagnostic activities. Diagnostic testing is realized in Newtonian (short) time while diagnostic reasoning - in (long) Bergsonian time. Both sort of time are used to analyze different kinds of problems in diagnostics and reliability of technical objects. Newtonian and Bersonian time differentiation needs some expert knowledge. In this paper, considerations are based on observation that Newtonian time of diagnostic testing is related to object maintenance (adjustment) and Bergsonian time is related to object is reliability. A significant change of the object’s technical condition (signals or parameters of the state) causes changes of its regulation state (quality indicators change) and the characteristics of reliability. As it is required for the operation and reliability to be always appropriate and permanent, the control should be adjusted to functional needs of the object, and the use should be adapted to the current characteristics of reliability. Therefore, change of the settings of the control device (made during the handling of the object) represents the change of technical condition and state of reliability. It is presumed that, during the operation of a technical object, the selection of the control settings for damaged object is impossible. This fact, when predicted, becomes the basis for the prediction of the object reliability.
Źródło:
Journal of KONES; 2012, 19, 2; 61-66
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The assessment of object usability on the basis of instantaneous values of technical condition and regulation state parameters
Autorzy:
Lindstedt, P.
Sudakowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/246863.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
parametric damage
instant damage
technical condition parameter
reliability characteristics
Opis:
In the process of using a complex technical object, it is deregulated, worn and its reliability is decreased. Therefore, it is required that its status, technical state and reliability should be observed during its normal use and handling. The results of such observations allow a synthetic (complex) assessment of suitability of the object, determining its ability to properly carry out its tasks in accordance with its intended purpose. A continuous observation of changes of technical condition on the basis of relationship between the diagnostic signals (output) and the input signals (environment) allow evaluation of the regulation state of the object [4, 5]. An innovative method of assessment of the operated system usability presented in the article concerns an adequate analysis of the changes to aRb technical condition and aRc, regulation state current parameters formed from coupled equations of state (1 and 2) [1, 2, 3, 7]. While analysing the waveforms of instantaneous values of aRb technical condition and aRc regulation state parameters, it has been observed that parameter and instantaneous damage can be identified on the basis of quantitative relationships between the instantaneous threshold value of dpr and the corresponding instantaneous value of dpr dop, which are calculated from the following formulas (7, 8, 9). It is assumed that damage exists if for the instant theta i . dpri greather than d prdop i . Having the quantity of damage, reliability characteristics can be determined for every time of technical object exploitation (prior to the occurrence of catastrophic damage) [6].
Źródło:
Journal of KONES; 2012, 19, 2; 305-312
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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