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Method for evaluating machine or equipment operation condition

A technology of operating conditions and equipment operation, applied in the testing of machines/structural components, testing of engines, instruments, etc., can solve problems such as unconstructive, unreliable, and evaluation of extrapolated results

Inactive Publication Date: 2004-04-28
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Without this information, extrapolated outcomes cannot be evaluated, and therefore decisions about responses to outcomes (e.g. intervention procedures) are highly unreliable and unconstructive

Method used

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  • Method for evaluating machine or equipment operation condition
  • Method for evaluating machine or equipment operation condition
  • Method for evaluating machine or equipment operation condition

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Embodiment Construction

[0035] The basic quantity used to calculate the quality measure K

[0036] The quality measure K is the measure used to extrapolate the quality. It combines various error effects and is therefore a function of at least two variables (eg V, ΔI). These variables in this case are for example the ratio V, the x-ambiguity ΔI, the continuity S and the time constant C:

[0037] K=f(V, ΔI, S, C).

[0038] These quantities are combined, for example, such that the value range of K lies in a standardized range, for example 0% to 100%.

[0039] ・The ratio V of the data area used for the extrapolation area

[0040] For extrapolation, there are n measurement points (x 1 ,y 1 ) to (x n ,y n ) are available. However, it is not necessary to use all existing measurement points 15 in the value range 54 ( image 3 ).

[0041] The ratio V sets, for example, the x-value range of the database 6 used for extrapolation (x n -x 1 ) and from x 1 to the extrapolated point x used s The x pos...

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PUM

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Abstract

Optimal adjustment of the extrapolation function in respect of the database is effected according to the invention not by means of a maximum correlation coefficient r but using a measure of quality K, which is independent of the gradient of an adjustment curve in respect of a database.

Description

technical field [0001] The invention relates to a method for evaluating the operating condition of a machine or plant. Background technique [0002] Hitherto, in order to evaluate the operating condition of a machine or plant, intuitive extrapolations such as key measurement processes and / or subjective evaluations of the influence on machine or plant parameters were used in order to assess the operating condition of the machine or plant and to react accordingly , wherein the parameters are changed or otherwise influenced by a corresponding evaluation, for example by specifying setpoint values ​​for the parameters. Here, the matching / regression functions of the database are matched and optimized by iteratively selecting the curve function with the largest correlation coefficient. The curvature change of this matching curve does not necessarily coincide with the database. The correlation coefficient r (max=1, min=−1) is only conditionally usable as a matching quality criteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00G01M15/00
CPCG01M15/00
Inventor 戈特弗里德·亚当
Owner SIEMENS AG