Aerodynamic Torque Trimming for Rotating Body Force Balance
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Solution Overview
Problem
Rotary launch systems face challenges with undesired torques perpendicular to the rotational axis, leading to structural strength requirements that are impractical and difficult to trim using traditional counterweight methods, especially when abrupt force changes occur during launch and separation.
Innovation Solution
An aerodynamic force adjustment system using a multi-degree-of-freedom attitude adjustment device and aerodynamic driving devices, such as propellers and wings, to generate trimming forces that counteract undesired torques, allowing for simultaneous adjustment across multiple dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional counterweight methods are used to trim undesired torques, then the system can achieve force balance, but the system weight and structural strength requirements become impractically high
Solution Approach 1:
The patent replaces traditional mechanical counterweight trimming methods with an aerodynamic force adjustment system. Aerodynamic components (such as adjustable wings or vanes) generate controllable aerodynamic forces to counteract undesired torques, eliminating the need for heavy mechanical counterweights while achieving the same force balance objective
Solution Approach 2:
The patent employs aerodynamic forces (a branch of fluid mechanics) to generate trimming forces. By adjusting the angle or position of aerodynamic surfaces, the system produces the necessary counter-torques to balance undesired forces without requiring additional mechanical mass
2Stability of the object's composition
If traditional counterweight methods are used to trim undesired torques, then the system can achieve force balance, but the device complexity and difficulty of trimming increase
Solution Approach 1:
The patent transforms the static counterweight system into a dynamic aerodynamic system. The aerodynamic components can be actively adjusted during operation to adapt to changing flight conditions, allowing the system to maintain force balance across various operating states without requiring complex mechanical reconfiguration
Solution Approach 2:
The patent achieves trimming by changing aerodynamic parameters (such as angle of attack, surface area, or position of aerodynamic surfaces) rather than requiring physical reconfiguration of mechanical counterweights. This allows for continuous and flexible adjustment of trimming forces through simple parameter modulation
3Adaptability or versatility
If the system uses aerodynamic components for force adjustment, then the system weight is reduced and adaptability is improved, but the system requires precise control and sensing capabilities
Solution Approach 1:
The patent incorporates a control unit that receives feedback from sensors about the system's motion state and force conditions. This feedback loop enables the control unit to automatically adjust the aerodynamic components to maintain desired force balance, managing the complexity through intelligent control rather than mechanical design
Solution Approach 2:
The aerodynamic components serve multiple functions: they generate lift, control trim, and provide adaptability to various flight conditions. By making the aerodynamic system multi-functional, the patent reduces the need for separate dedicated trimming mechanisms, thereby managing complexity while enhancing versatility
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 reduces system weight, minimizes structural strength requirements, decouples centrifugal and gravity-induced torques, and adapts quickly to force changes, providing driving and braking capabilities while maintaining compactness.
Implementation Method 1
an aerodynamic component including at least one support component, the at least one support component including at least one aerodynamic driving device
Data Source
AI summary
A system for adjusting forces on a rotating body using aerodynamics means includes an aerodynamic component, a sensing system, and a control unit. The aerodynamic component includes at least one support component. At least one aerodynamic driving device is provided on the support component. The support component includes a supporting body, and the aerodynamic driving device is provided on the supporting body. The sensing system includes a system state sensing subsystem.