Canopy Orientation via Counterweight Lever for Wind Drag Reduction
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Solution Overview
Problem
Tents and pop-up canopies are prone to damage and flyaway in windy conditions, posing safety risks and aesthetic issues, while existing wind-resistant options either fail to provide shelter in calm conditions or are too small for multiple users.
Innovation Solution
A dynamically orienting adjustable shelter system comprising a base, lever arm, counterweight, boom, canopy supports, and support cables that automatically adjust to reduce wind drag by rotating the canopy supports, stabilizing the structure with counterweights and tension straps to maintain shelter functionality in both windy and calm conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tents and pop-up canopies use traditional supporting structures, then they are simple and easy to set up, but they break easily in windy conditions due to drag forces acting on the tensile materials
Solution Approach 1:
The canopy support structure is designed to dynamically rotate about the booms in response to wind forces. This dynamic adjustment allows the canopy to automatically reduce its cross-sectional area exposed to wind, transforming the rigid static structure into a flexible adaptive system that can withstand gusts without damage
Solution Approach 2:
A counterweight mechanism is implemented to balance the torque created by drag forces acting on the canopy. The counterweight system provides the necessary opposing force to prevent the canopy from being overturned or damaged by strong winds, while maintaining stability during calm conditions
2Reliability
If wind-resistant canopies are designed to withstand strong forces, then they provide better protection in windy conditions, but they either fail to provide adequate shelter in calm conditions or are too small for multiple users
Solution Approach 1:
The dynamic rotation capability allows the canopy to adapt its configuration based on wind conditions. In calm conditions, the canopy maintains its full sheltering capacity for multiple users, while in windy conditions, it automatically adjusts to reduce wind exposure, providing versatility across different environmental conditions
Solution Approach 2:
The system changes its effective parameters (cross-sectional area, orientation) in response to wind conditions. By dynamically altering these parameters, the canopy can provide full shelter capacity when needed while reducing wind resistance when necessary, achieving adaptability across different conditions
3Reliability
If tents and pop-up canopies use impenetrable tensile materials for shelter, then they provide good protection from elements, but they obstruct surrounding scenery and create safety hazards when broken
Solution Approach 1:
The canopy uses a tensile membrane structure that provides effective shelter while being more flexible and less obtrusive than rigid walls. When the canopy rotates or adjusts in wind, it dynamically modifies its visual profile, reducing aesthetic obstruction while maintaining protection functionality
Solution Approach 2:
The dynamic rotation mechanism allows the canopy to reduce its visual obstruction when not in full use or during windy conditions, minimizing aesthetic impact on surrounding scenery while maintaining structural integrity and safety
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 effectively withstands gusts, reduces flyaway risks, and provides unobstructed views while maintaining shelter functionality, addressing the limitations of current wind-resistant canopies by dynamically adjusting to wind forces and ensuring structural integrity.
Implementation Method 1
the torque created by the drag force acting on the canopy, the canopy weight, and the boom with the torque created by itself and the lever arm
Implementation Method 2
drag forces created by wind acting on the tensile materials
Implementation Method 3
The lever arm connects to the base at said base end and a weight end extends away from said base
Data Source
AI summary
A system for a dynamically orienting adjustable shelter is provided. The system generally comprises a base, lever arm, counterweight, boom, canopy, canopy supports, and support cables connected to said canopy supports. The boom and lever arm connect to the base in a way such that the boom may be in an upright position when a counterweight is placed on the lever arm. A canopy assembly may be rotatable attached boom in a way that allows it to rotate about said boom, which allows the canopy assembly to reduce the cross-sectional area of the canopy exposed to the wind. A cable may be attached to the front end of the canopy supports, which may prevent the back end of the canopy from tipping too far down when there is no wind that the system may use to stabilize the canopy by naturally reducing the cross-sectional area exposed thereto.