Load Spectrum Capturing Device for Mechanical Stress Monitoring
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Solution Overview
Problem
Existing methods for capturing a load spectrum of mechanical stresses on machine elements are inefficient, requiring extensive data storage and transmission, which is uneconomically high for long-term monitoring.
Innovation Solution
A method and device for capturing a load spectrum that calculates partial load-spectrum data at intervals, stores it in a data-memory apparatus, and determines essential information for long-term monitoring, reducing the need for extensive data storage and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measured data is captured continuously over long periods using measuring apparatus, then the completeness and accuracy of load spectrum data is improved, but the data storage requirements and transmission effort increase excessively
Solution Approach 1:
The patent segments the continuous measured data into discrete evaluation intervals. Instead of storing all raw measured data points, the system divides the capturing period into intervals and calculates load spectrum data separately for each interval. This segmentation reduces the total data volume while preserving essential load information for long-term monitoring.
Solution Approach 2:
The patent performs preliminary calculation of load spectrum data at defined intervals during the capturing period, rather than waiting until the end of data collection. By calculating partial load spectrum data periodically and storing only these results, the system reduces storage requirements while maintaining data completeness for long-term analysis.
2Speed
If measured data is transmitted frequently to external analysis apparatus, then the real-time monitoring capability is improved, but the energy consumption and transmission effort increase
Solution Approach 1:
The patent implements periodic evaluation instead of continuous transmission. Load spectrum data is calculated and transmitted only at defined evaluation intervals rather than continuously. This periodic action reduces transmission frequency and energy consumption while still providing regular updates on the machine element's load conditions.
Solution Approach 2:
The system performs preliminary calculation of load spectrum data locally at the capturing device before transmission. By pre-processing the measured data into meaningful load spectrum information at intervals, the system reduces both transmission volume and frequency, thereby lowering energy consumption while maintaining monitoring effectiveness.
3Ease of manufacture
If separate analysis apparatus is used to process measured data, then the measuring apparatus design is simplified, but the overall system complexity and cost increase
Solution Approach 1:
The patent combines the measuring apparatus and analysis functions into a single integrated load-spectrum-capturing device. The evaluating apparatus is arranged in direct connection with the measuring apparatus, allowing data processing to occur within the same device. This merging eliminates the need for separate analysis apparatus while reducing system complexity and overall cost.
Solution Approach 2:
The load-spectrum-capturing device is designed to perform multiple functions: capturing measured data, calculating load spectrum data, storing results, and transmitting information. This multi-functional integration replaces the need for separate specialized apparatus, simplifying the overall system while maintaining analytical capabilities.
Data Source
AI summary
A method is provided for capturing a load spectrum of mechanical stresses which act on a machine element during an intended use. Mechanical stresses acting on the machine element are captured by a measuring apparatus of a load-spectrum-capturing device arranged on or in the machine element over a capturing period. Proceeding from the measured data acting on the machine element and captured by the measuring apparatus, a load spectrum depicting the mechanical stresses acting on the machine element is determined. In this method, partial load-spectrum data are calculated at time intervals by a load-spectrum-determining apparatus of the load-spectrum-capturing device proceeding from the captured measured data and the partial load-spectrum data are stored in a data-memory apparatus of the load-spectrum-capturing device. The partial load-spectrum data determined over the capturing period form a load-spectrum data set of a load spectrum.