Hinged Aerodynamic Appendage With Rearview Mirror Function
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Solution Overview
Problem
Existing aerodynamic appendages for motorbikes either compromise aerodynamic downforce when used as rearview mirrors or fail to provide a functional rearview mirror when designed for downforce generation, particularly in racing conditions.
Innovation Solution
An aerodynamic appendage with a movable part that can rotate between open and closed positions, functioning as a rearview mirror when needed and maintaining downforce generation by being aerodynamically shielded in the closed position, utilizing a hinge connection with the trailing edge of the fixed part and a spherical joint for orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the aerodynamic appendage is designed to generate downforce, then aerodynamic performance is improved, but it cannot provide a functional rearview mirror
Solution Approach 1:
The appendage incorporates a movable part that can rotate between a first position (providing rearview mirror function) and a second position (optimizing aerodynamic downforce). This dynamic positioning allows the same structure to serve both functions optimally depending on the riding condition.
Solution Approach 2:
The aerodynamic appendage is designed to perform multiple functions: generating downforce and providing a rearview mirror capability. The movable part with reflecting surface enables the structure to serve both aerodynamic and visibility purposes.
2Adaptability or versatility
If the aerodynamic appendage is designed to provide a rearview mirror, then visibility is improved, but aerodynamic downforce is compromised
Solution Approach 1:
The movable part can be positioned in a first configuration for rearview mirror use and a second configuration for aerodynamic optimization. This dynamic adjustment allows users to switch between functions based on whether they are on a racetrack or public roads.
3Force
If a movable rearview mirror is added to maintain downforce, then aerodynamic performance is preserved, but device complexity increases
Solution Approach 1:
The rearview mirror function is merged into the aerodynamic appendage structure itself. The movable part with reflecting surface is integrated into the appendage, eliminating the need for separate mirror assemblies and reducing overall system complexity.
Solution Approach 2:
The same aerodynamic appendage structure serves dual purposes: generating downforce and providing rearview mirror capability. This multi-functionality eliminates the need for additional separate components.
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 appendage effectively generates aerodynamic downforce while providing a functional rearview mirror without significant loss of downforce, adaptable to both racing and road conditions through adjustable positioning.
Implementation Method 1
the fixed part (2) of the aerodynamic appendage (1) has a dorsal or upper surface (2U) and a ventral or lower surface (2L)... the aerodynamic appendage is configured for generating an aerodynamic force, in particular a downforce, when it is surrounded by an airflow related to the movement of the motorbike
Data Source
AI summary
Aerodynamic appendage (1) comprising: a mounting base (61); a fixed part (2) with an upper surface (2U), a lower surface (2L), a leading edge (2F) and a trailing edge (2R); and a movable part (3) provided with a reflecting front surface (31); the movable part (3) is hinged to the fixed part (2) on one of its leading or trailing edges, so that it can rotate around a corresponding hinge axis (A32), such that the movable part (3) can assume a closed position in which its rear surface (310) opposite the reflecting surface (31) is close to the lower surface (2L) of the fixed part (2) and an open position in which its rear surface (310) is spaced from the lower surface (2L) of the fixed part (2) and the front reflecting surface (31) is visible; the mounting base (61) comprises a joint (6) which allows the aerodynamic appendage (1) to be oriented according to a variety of use positions.