Predicting Precipitation Static Charge on Dielectric Coatings
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Solution Overview
Problem
Current methods for determining precipitation-static charge on aircraft surfaces are inaccurate, time-consuming, and costly, relying on historical data or expert analysis, which can lead to inefficient and ineffective repair of anti-static coatings, resulting in radio interference and surface damage.
Innovation Solution
A computer-implemented system that predicts precipitation-static charge levels by generating plots and data based on user-defined variables, including flight environments, repair sizes, and material properties, using non-transitory computer-readable storage media to calculate and display charge potential across expanding radii of damage areas, simplifying calculations for circular and non-circular surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If historical data or expert analysis is used to determine precipitation-static charge levels, then the process is simpler to implement, but the accuracy and reliability of the results are reduced
Solution Approach 1:
The patent replaces physical measurement instruments and manual expert analysis with a computer-implemented simulation system. The system uses software to calculate precipitation-static charge levels based on input parameters such as flight conditions, coating properties, and damage characteristics, eliminating the need for complex physical measurement equipment and subjective expert judgment.
Solution Approach 2:
The patent creates a virtual model or simulation of the aircraft surface with damaged coating areas. Instead of physically measuring charge levels on the actual aircraft, the system copies the relevant geometric and material properties into a computational model that predicts charge accumulation under various flight conditions.
2Measurement precision
If current measurement methodology is used to assess p-static performance, then direct measurement is obtained, but the measurement environment is altered and precision errors are introduced
Solution Approach 1:
The patent performs calculations and predictions before actual flight or measurement operations. By simulating charge accumulation under various flight conditions using the computer system, the methodology determines potential p-static problems in advance, allowing for preventive coating repairs without needing to alter the actual measurement environment during flight testing.
3Reliability
If anti-static coating is applied to prevent p-static charge buildup, then charge accumulation is reduced, but the coating becomes worn or damaged over time requiring monitoring and repair
Solution Approach 1:
The patent implements a feedback mechanism where the computer system calculates charge levels based on the current state of the coating (intact or damaged). The results provide feedback on whether damaged areas require repair, enabling condition-based maintenance. This allows operators to monitor coating effectiveness and schedule repairs only when necessary, optimizing the balance between coating reliability and maintenance time.
Data Source
AI summary
A method and system for determining precipitation static charge levels on a dielectrically coated surface is provided.