Handheld Mobile Device for Helicopter Rotor Track and Balance
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Solution Overview
Problem
Helicopter rotor blades that are out of balance cause vibrations leading to excessive wear and maintenance costs, necessitating periodic checks and corrections for rotor track and balance.
Innovation Solution
A handheld mobile device system within the aircraft cockpit that includes a tracker module with a camera and an accelerometer module, which collects data on blade height and position, and airframe vibrations to calculate and display rotor track and balance recommendations, reducing installation time and improving user operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rotor track and balance checking methods are used, then maintenance personnel can detect and correct rotor blade issues, but the process requires extensive installation time and complex equipment setup
Solution Approach 1:
The patent replaces traditional mechanical measurement systems with a mobile computing device that uses digital sensors, cameras, and processing algorithms to measure rotor blade track and balance. The system substitutes complex mechanical installation equipment with a portable electronic device that can be quickly deployed and removed, significantly reducing installation time while maintaining measurement accuracy
Solution Approach 2:
The mobile computing device serves multiple functions: it acts as a measurement instrument, data processor, analysis engine, and communication device all in one unit. This multi-functional approach eliminates the need for separate specialized equipment for each measurement task, reducing overall system complexity and installation requirements
2Measurement precision
If traditional rotor track and balance equipment is used, then accurate measurements can be obtained, but the device complexity and difficulty of operation increase
Solution Approach 1:
The system automatically performs measurements, data processing, and analysis without requiring manual intervention for each step. The mobile device self-calibrates, automatically tracks blade positions through video analysis, and generates balance recommendations without operator intervention, making the complex measurement process simple to operate
Solution Approach 2:
The system provides real-time feedback during the measurement process, displaying blade position data, track deviations, and balance recommendations on the mobile device screen. This immediate feedback allows operators to understand measurement results instantly and make corrective adjustments without waiting for complex processing
3Object-affected harmful factors
If periodic maintenance is performed to check rotor track and balance, then vibration-induced wear and component failure are reduced, but maintenance costs and helicopter downtime increase
Solution Approach 1:
The system enables rapid measurement and correction of rotor blade track and balance issues before they lead to excessive vibration and component wear. By performing quick assessments during scheduled maintenance and immediately implementing corrections, the system prevents vibration-related damage without requiring extended maintenance periods
Solution Approach 2:
The maintenance process is divided into discrete, quickly-executable steps: data collection, analysis, and correction recommendations. This segmented approach allows maintenance personnel to complete essential measurements and obtain actionable results in minimal time, reducing helicopter downtime while still addressing vibration issues effectively
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
The system significantly reduces rotor-induced vibrations by providing accurate and efficient rotor track and balance recommendations, minimizing maintenance costs and downtime.
Implementation Method 1
The accelerometer module is configured to utilize the accelerometer to generate airframe vibration data
Implementation Method 2
The tracker module is configured to utilize the camera to generate input data corresponding to blade height and position
Data Source
AI summary
A handheld mobile device may be configured for use within a cockpit or cabin of an aircraft. The handheld mobile device may include a display and memory that includes an application configured to utilize the display. The handheld mobile device may also include a processor coupled to the memory. The application, via the processor, may be configured to receive aircraft-specific configuration data. The application may also receive, from a tracker module, input data corresponding to blade height and position. The application may additionally receive airframe vibration data from an accelerometer module. The application may further calculate recommendations regarding track and balance. The application may also further output, via the display, the track and balance recommendations.