Wing Device With Fixing Groove For Flight Stability
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Solution Overview
Problem
Foldable wings on flight vehicles, such as guided missiles, experience stability issues due to rotational motion caused by pneumatic forces and incomplete fixation after deployment, leading to clearance problems and reduced accuracy in flight.
Innovation Solution
A wing device featuring a fixing shaft, a spring unit with torsional and compressive restoring forces, and a fixing groove system that allows the wing to be slid and rotated into a fixed position, ensuring complete deployment and stability with a simplified structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the wing is designed with a curved surface to minimize installation space, then the wing can be folded within the launching tube, but the wing causes rotational motion due to pneumatic force differences, lowering flight stability
Solution Approach 1:
The wing is divided into multiple segments that can be independently positioned and fixed. The wing includes a first wing segment and a second wing segment that can be separately adjusted to achieve proper aerodynamic alignment while maintaining compact storage configuration
Solution Approach 2:
The wing structure incorporates movable joints and adjustment mechanisms that allow the wing to transition between folded and deployed states. The wing can dynamically adjust its configuration during flight to maintain stability while minimizing installation space
2Device complexity
If the wing is supported only by a deployment spring, then the structure is simple, but the wing is not completely fixed after deployment, causing clearance problems and reducing flight stability
Solution Approach 1:
The wing structure includes pre-positioned fixing grooves and corresponding fixing protrusions that are prepared in advance. When the wing is deployed, these features automatically engage to secure the wing in its correct position, eliminating clearance issues before flight begins
Solution Approach 2:
A fixing shaft serves as an intermediary component between the wing and the body. The shaft includes fixing grooves that receive fixing protrusions from the wing, providing a reliable mechanical connection that eliminates clearance while maintaining structural simplicity
3Volume of moving object
If the wing is folded within the launching tube, then the launch configuration is compact, but the wing experiences friction during deployment, affecting deployment smoothness
Solution Approach 1:
The wing is extracted from the launching tube in a controlled manner through a dedicated deployment path. The fixing shaft and guiding structures ensure the wing moves along a predetermined trajectory that minimizes contact friction with the tube walls during deployment
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 wing device provides enhanced stability and accurate guidance by firmly fixing the wings after deployment, reducing clearance and minimizing friction during deployment, thus improving the overall stability and control of flight vehicles.
Implementation Method 1
a spring unit configured to apply a first elastic force in an outer circumferential direction of the main body for deployment of the wing, and apply a second elastic force in a lengthwise direction of the main body for inserting the wing into the fixing groove
Implementation Method 2
The first elastic force may be a torsional restoring force generated as the wing is laid
Implementation Method 3
the second elastic force may be a compressive restoring force generated in response to the sliding of the wing
Data Source
AI summary
Disclosed are a wing device for a flight vehicle and a flight vehicle having the same, the wing device including a fixing shaft disposed in a lengthwise direction of a main body of the flight vehicle, a wing rotatably mounted to the fixing shaft so as to be deployed from a state of being laid on an outer circumferential surface of the main body to an erected state, and slidable along the fixing shaft, a fixing groove formed to face the wing in a sliding direction of the wing, and a spring unit configured to apply a first elastic force in an outer circumferential direction of the main body for deployment of the wing, and apply a second elastic force in a lengthwise direction of the main body for inserting the wing into the fixing groove, whereby the wing can be fixed after deployment so as to enhance stability of the flight vehicle.