Seaplane Float Segmentation for Pitch Angle Suppression
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Solution Overview
Problem
Existing seaplane designs face difficulties in operating on wavy water surfaces due to significant pitch angle fluctuations caused by wave movements, limiting their ability to take off and land safely, and current buffering solutions are not applicable to all types of seaplanes.
Innovation Solution
A device comprising a linking mechanism with an anisotropic elastic material and a turning member, which maintains the float in a straight position on calm water and absorbs wave-induced movements by allowing the turning member to deform and return to its normal position, reducing pitch angle fluctuations, and can be applied to various seaplane configurations including flying boats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a buffering member is interposed between the float and the seaplane main body to suppress pitch angle fluctuations, then the upper limit of wave height the seaplane can handle is raised, but the shapes of seaplanes to which the technique can be applied are limited
Solution Approach 1:
The float is divided into two functional parts: a base member that maintains a straight shape to suppress pitch angle fluctuations, and a turning member at the front end that can rotate independently to adapt to wave conditions. This segmentation allows the buffering function to be achieved while maintaining versatility across different seaplane configurations.
Solution Approach 2:
The turning member is designed to rotate dynamically in response to wave-induced forces, allowing the float to adapt its configuration based on sea conditions. The linking means provides a dynamic connection that allows controlled movement while maintaining overall stability, enabling the system to work with various seaplane shapes.
2Stability of the object's composition
If the float is kept in a straight shape to suppress pitch angle fluctuations, then pitch angle stability is improved, but the ability to handle high waves is reduced
Solution Approach 1:
By separating the float into a straight base member and a rotatable turning member, the system maintains pitch stability through the base while the turning member absorbs wave energy through controlled rotation, resolving the contradiction between stability and wave handling.
Solution Approach 2:
The linking means acts as an intermediary between the base member and turning member, allowing the turning member to rotate in response to waves while the base member maintains its straight configuration for pitch stability. This mediator enables both functions to coexist.
3Reliability
If the turning member is allowed to rotate to absorb wave energy, then wave handling capability is improved, but pitch angle stability is reduced
Solution Approach 1:
The segmentation of the float into independent rotational and stabilizing components allows the turning member to rotate for wave absorption while the base member maintains pitch stability, with the linking means coordinating their interactions.
Solution Approach 2:
Different parts of the float have different functional qualities: the base member maintains a fixed straight configuration for stability, while the turning member at the front end has rotational freedom for wave absorption. This local differentiation resolves the contradiction between stability and adaptability.
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 solution effectively suppresses pitch angle fluctuations, allowing seaplanes to operate on a wider range of water conditions, including higher waves, while maintaining stable aerodynamic characteristics and reducing passenger discomfort, and can be applied to various seaplane types.
Implementation Method 1
a linking means (6) linking the base member (3a) to the turning member (3b), wherein the linking means (6) has elasticity
Implementation Method 2
the seaplane is caused to float on the water surface by buoyancy acting on the float
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided is a device for suppressing pitch angle fluctuation in the main body of a seaplane, and enabling operation in higher waves. A float (3) is divided in the length direction thereof into a base member (3a) linked at the center thereof to a seaplane main body (2), and a turning member (3b) located at the lengthwise end of the base member, the turning member being capable of turning between a normal position for being positioned along the length direction of the base member, and an active position for being positioned higher than the length direction of the base member, a linking means (K(6)) being provided between the base member and the turning member to link the two members together in a manner enabling the members to rotate relative to each other, the linking means urging the turning member toward the normal position.