Component Damage State Determination via Operating State Signals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for determining the damage state of components are limited in accuracy and require extensive testing and sensor deployment, making them inefficient and costly.
Innovation Solution
A method that records time profiles of stresses and loads on components and relevant system signals during operation, allowing for the determination of operating states and assignment of damaging events, resulting in time-normalized stress and load collectives that can be used to assess damage states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous stress and load measurements are performed on components, then measurement precision of damage state is improved, but device complexity and testing requirements increase
Solution Approach 1:
The patent uses operating state signals as an intermediary to indirectly determine component damage. Instead of directly measuring stresses and loads on the component, the system measures signals from the overall system that correlate with operating states, which then serve as mediators to infer damage through pre-determined relationships between operating states and stress collectives.
Solution Approach 2:
The patent creates a simplified copy of the damage assessment process by using operating state signals as substitutes for direct stress and load measurements. The time profile of operating state signals serves as a representative copy that can be processed to determine damage without requiring continuous direct measurement of the component's mechanical stresses.
2Reliability
If extensive testing and sensor deployment are performed, then reliability of damage state determination is improved, but loss of time and operational costs increase
Solution Approach 1:
The patent performs preliminary determination of the relationships between operating states and stress collectives during initial testing or calibration phases. These pre-determined relationships are stored and can be applied during normal operation without requiring continuous extensive testing, thereby reducing time loss while maintaining reliability.
Solution Approach 2:
The system uses the overall system's own operating state signals to assess component damage without requiring external continuous stress measurement systems. The component's operational characteristics themselves serve as the measurement basis, eliminating the need for additional extensive sensor deployment and reducing operational time and costs.
3Measurement precision
If time profiles of stresses and loads are recorded, then measurement precision of operating states is improved, but use of energy and testing requirements increase
Solution Approach 1:
The patent extracts only the necessary information from the overall system's operation - specifically the time profile of operating state signals - rather than continuously monitoring all possible parameters. By taking out only the essential operating state characteristics, the system achieves sufficient measurement precision for damage assessment with reduced energy consumption compared to comprehensive continuous monitoring.
Data Source
AI summary
The invention relates to a method for determining a damage state of components, wherein damage states are determined for a component on the basis of operating states of an overall system that comprises the component by determining time-normalised stress collectives and/or load collectives for each operating state (ZBB), wherein, by means of the time-normalised stress collectives and/or load collectives for each operating state (ZBB) the damage state is determined for the component on the basis of operating states of the overall system that have occurred, and/or the prospective damage state is determined on the basis of predicted prospectively occurring operating states of the overall system that comprises the component, and/or the damage state is determined for a further component, designed similarly to the aforementioned component, depending on operating states that have occurred of a further overall system, which comprises the further component and is designed similarly to the aforementioned overall system, and/or the prospective damage state is determined on the basis of predicted prospectively occurring operating states of the further overall system that comprises the further component.