Process and device for monitoring a machine
First Claim
1. Process for monitoring a machine, within the framework of a fault possibility effect analysis (FMEA) process for at least one component of the machine for at least one predetermined fault which can be diagnosed by means of a diagnosis diagram and a diagnosis system with sensors for detecting physical parameters of the machine, comprising the steps of:
- determining a diagnosis priority number which is a product of the following index quantities;
severity of the effect of occurrence of the fault with respect to the functioning of the machine;
expected machine-specific consequential costs when a fault occurs; and
the possibility of correction of the fault; and
using the diagnosis priority number determined for evaluation of at least one of a diagnosis diagram, diagnosis system, current machine state, necessary maintenance measures and failure risk of the machine.
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Accused Products
Abstract
A process for monitoring a machine, within the framework of a FMEA process for at least one component of the machine for at least one predetermined fault which can be diagnosed by means of a diagnosis diagram and a diagnosis system with sensors for detecting physical parameters of the machine, a diagnosis priority number being determined which is the product of the following index quantities: severity of the effect of occurrence of the fault with respect to the serviceability of the machine; expected machine-specific consequential costs when a fault occurs, and the possibility of correction of the fault. The diagnosis priority number is used in the evaluation of the diagnosis diagram, the diagnosis system, the current machine state, the necessary maintenance measures and/or the failure risk of the machine.
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Citations
24 Claims
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1. Process for monitoring a machine, within the framework of a fault possibility effect analysis (FMEA) process for at least one component of the machine for at least one predetermined fault which can be diagnosed by means of a diagnosis diagram and a diagnosis system with sensors for detecting physical parameters of the machine, comprising the steps of:
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determining a diagnosis priority number which is a product of the following index quantities;
severity of the effect of occurrence of the fault with respect to the functioning of the machine;
expected machine-specific consequential costs when a fault occurs; and
the possibility of correction of the fault; andusing the diagnosis priority number determined for evaluation of at least one of a diagnosis diagram, diagnosis system, current machine state, necessary maintenance measures and failure risk of the machine. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Process for monitoring a machine within the framework of a fault possibility effect analysis (FMEA) process for at least one component of the machine for at least one predetermined vibration boundary value of the at least one machine component, comprising the steps of:
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determining a vibration priority number which is a product of the following index quantities;
frequency with which a predetermined vibration boundary value is exceeded;
severity of the effect of the vibration boundary value being exceeded with respect to the functionality of the machine; and
probability of discovery of the vibration boundary value being exceeded by means of the vibration detection system which is provided, andusing the vibration priority number for evaluation of at least one of a current state of the machine, necessary maintenance measures, vibration detection system and the risk of machine failure. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. Device for monitoring a machine, comprising:
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a diagnosis system with sensors for detecting physical parameters of the machine and a monitoring unit having a data processing system and which, within the framework of a fault possibility effect analysis (FMEA) process for at least one machine component for at least one predetermined fault which can be diagnosed by means of a diagnosis diagram and a diagnosis system, determines a diagnosis priority number which is a product of the following index quantities;
severity of the effect of the occurrence of the fault with respect to the functioning of the machine;
expected machine-specific consequential costs when a fault occurs; and
the possibility of correction of the fault. - View Dependent Claims (23)
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24. Device for monitoring a machine, comprising:
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a vibration detection system for detecting vibrations of at least one machine component, and a monitoring unit having a data processing system and which, within the framework of a fault possibility effect analysis (FMEA) process for at least one machine component for at least one predetermined fault vibration boundary value of the machine component, determines and outputs a vibration priority number which is a product of the following index quantities;
frequency with which the predetermined vibration boundary value is exceeded;
severity of the effect of the vibration boundary value being exceeded with respect to the functioning of the machine; and
the possibility of detection of the vibration boundary value being exceeded by means of the vibration detection system which is provided.
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Specification