Aircraft CG Management for Loading Long Wind Turbine Blades
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Solution Overview
Problem
The transportation of large wind turbine blades and other complex structures is hindered by the inability to manage the center of gravity (CG) effectively, leading to stability and controllability issues during transportation, especially when using conventional air and sea vehicles, which are limited by infrastructure and accessibility challenges.
Innovation Solution
A method and system for managing CG by controlling fuel location within the aircraft and accounting for payload rotation during loading, using pre-formed markings and rails to secure the package at a location proximate to the aircraft's CG, ensuring the payload's CG is within a specific tolerance range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional transportation methods (truck, rail, ship) are used for wind turbine blades, then infrastructure availability and accessibility are improved, but transportation speed and efficiency deteriorate due to road limitations, bridge/tunnel height constraints, and remote site accessibility issues
Solution Approach 1:
The aircraft is designed with a kinked fuselage configuration that allows dynamic adaptation to different payload configurations and loading scenarios, enabling efficient air transportation to remote offshore and onshore sites that are inaccessible to conventional ground and sea transport
2Length of moving object
If larger transportation vehicles are used to accommodate longer wind turbine blades, then cargo capacity is improved, but vehicle stability and controllability deteriorate due to load balancing complications and handling difficulties
Solution Approach 1:
The aircraft is equipped with pre-formed markings in the interior cargo bay that indicate the precise location for positioning the payload's center of gravity. This preliminary guidance system enables correct CG positioning before flight, ensuring stable and controllable transportation of long blades without requiring complex load balancing adjustments during loading
Solution Approach 2:
The patent replaces complex mechanical load balancing systems with a simplified positioning system based on pre-formed markings and CG calculation, substituting mechanical adjustment mechanisms with a more reliable marking-based guidance approach
3Stability of the object's composition
If the payload is positioned to optimize center of gravity alignment, then flight stability is improved, but loading complexity increases due to the need for precise CG calculation and positioning
Solution Approach 1:
The aircraft interior cargo bay includes pre-formed markings that are预先 calculated to indicate the correct payload positioning for optimal center of gravity alignment. This preliminary preparation eliminates the need for complex real-time calculations during loading, as the markings provide direct visual guidance for achieving proper CG positioning
Solution Approach 2:
The loading system enables operators to independently position the payload correctly by following the pre-formed markings without requiring external assistance or complex calculation tools, making the precision positioning process self-service and straightforward
Data Source
Figure 1A
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Figure 2A
AI summary
Systems, methods, and aircraft for managing center of gravity (CG) while transporting large cargo are described. Management of CG is achieved in many ways. In some instances, the aircraft itself is designed to assist in managing CG by providing fuel tanks that minimize the impact of fuel on the net CG of the aircraft. The fuel tanks utilize only a small amount of available volume in the wings for fuel. Disclosures related to properly managing CG while loading wind turbines onto cargo aircraft are also provided. The CG management techniques provided for herein allow for the transportation of wind turbine blades via aircraft, running counter to the typical rail or truck transportation of the same. One such management technique includes accounting for how a rotation of the blades when loading impacts the CG of the blades, and thus taking this into account when placing the blades in the aircraft.