Robotic UAV Integrity Testing Using Inertial Vibration Signatures
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Solution Overview
Problem
Aerial vehicles, such as UAVs, face challenges in quickly determining their structural and aerodynamic integrity post-mission or during maintenance, as discrepancies may be invisible and require time-consuming inspections, disrupting operational readiness.
Innovation Solution
A system utilizing a handling system with robotic arms and sensors to manipulate the vehicle and capture data on its inertial and vibratory responses, generating signatures for comparison against baseline data to assess integrity, allowing for rapid clearance or identification of needed repairs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional visual inspections are performed to check structural integrity, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent replaces manual visual inspection with an automated system that uses sensors to capture inertial and vibratory response data. This substitution of mechanical/manual processes with automated sensing and data analysis enables rapid, non-contact assessment of structural integrity, significantly reducing inspection time while maintaining or improving measurement precision through objective data collection.
Solution Approach 2:
The patent introduces an intermediary data analysis layer that processes sensor data to generate integrity assessments. By using computed inertial and vibratory signatures as intermediaries between physical inspection and conclusion, the system enables rapid automated evaluation without requiring time-consuming manual examination, thus resolving the time-precision contradiction.
2Reliability
If comprehensive inspections are conducted to ensure structural soundness, then reliability is improved, but productivity decreases
Solution Approach 1:
The patent performs preliminary integrity assessments by capturing inertial and vibratory signatures during normal operations or before missions. This preliminary action allows the system to proactively identify potential issues without requiring time-consuming comprehensive inspections later, thereby maintaining reliability while preserving productivity and mission readiness.
Solution Approach 2:
The patent implements a feedback mechanism where sensor data from operational phases is continuously analyzed to assess structural integrity. This ongoing feedback loop enables the system to maintain reliability through continuous monitoring without interrupting operations for comprehensive inspections, thus preserving productivity while ensuring structural soundness.
3Measurement precision
If manual inspections are performed to detect invisible discrepancies, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex manual inspection procedures with a standardized sensor-based measurement system. By substituting human expertise and manual techniques with automated inertial and vibratory sensing, the system achieves comparable or superior defect detection capability while reducing the operational complexity of performing inspections.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and accurate assessment of vehicle integrity, reducing downtime by quickly identifying issues and ensuring safe operation, thereby enhancing mission readiness and maintenance efficiency.
Implementation Method 1
observing the physical behavior of the vehicle in response to such movements or manipulations based on data captured using one or more sensors... generating a signature representative of an inertial and/or a vibratory response
Data Source
AI summary
A vehicle or another object is grasped by a robotic arm of a handling system and caused to undergo one or more movements or manipulations resulting in a change of position, orientation, velocity or acceleration of the vehicle. Sensors provided in the robotic arm capture data representative of forces or torques imparted upon the robotic arm by the vehicle during or after the movement, or power or energy levels of vibration resulting from the movement. A signature representative of an inertial or vibratory response of the vehicle to the movement is derived based on the data. The signature may be compared to a baseline signature similarly derived for a vehicle that is known to be structurally and aerodynamically sound. If the signature is sufficiently similar to the baseline signature, the vehicle may also be determined to be structurally and aerodynamically sound.