Bicycle Wheel Spoke Configuration for Balanced Stress
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Solution Overview
Problem
Conventional bicycle wheel spoke assembly methods lead to non-uniform stress distribution, causing pulling spokes to break easily under increased tension and pushing spokes to loosen, resulting in reduced durability and increased incidence of spoke breakage.
Innovation Solution
The bicycle wheel design incorporates a specific configuration of first side pulling spokes, first side pushing spokes, and second side spokes, with defined vertical distances and ratios between their axes, connected in a straight-pulled method to maintain optimal tension and avoid excessive or insufficient tension during cycling, ensuring balanced stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional crossover weave method is used for assembling spokes, then the wheel can bear impact stresses, but the tension of pulling spokes increases excessively causing them to break easily
Solution Approach 1:
The wheel is divided into two sides with different spoke configurations. The first side (driving side) uses a radiation weave pattern optimized for power transmission, while the second side (coast side) uses a crossover weave pattern optimized for impact resistance. This segmentation allows each side to be optimized for its specific functional requirements without compromising the other.
Solution Approach 2:
Different spoke assembly patterns are applied to different sides of the wheel based on local functional requirements. The driving side requires optimal power transmission with controlled tension, while the coast side requires impact stress distribution. This local quality approach ensures each region has the structural characteristics best suited for its specific loading conditions.
2Ease of manufacture
If conventional radiation weave method is used for assembling spokes, then the assembly is simple, but the power transmission capability is poor
Solution Approach 1:
The wheel is divided into two sides with different spoke configurations. The first side (driving side) uses a radiation weave pattern optimized for power transmission, while the second side (coast side) uses a crossover weave pattern optimized for impact resistance. This segmentation allows each side to be optimized for its specific functional requirements without compromising the other.
Solution Approach 2:
Different spoke assembly patterns are applied to different sides of the wheel based on local functional requirements. The driving side requires optimal power transmission with controlled tension, while the coast side requires impact stress distribution. This local quality approach ensures each region has the structural characteristics best suited for its specific loading conditions.
3Device complexity
If conventional spoke assembly methods are used, then the wheel structure is simple, but the stress distribution is non-uniform causing spokes to loosen or break
Solution Approach 1:
The wheel is divided into two sides with different spoke configurations. The first side (driving side) uses a radiation weave pattern optimized for power transmission, while the second side (coast side) uses a crossover weave pattern optimized for impact resistance. This segmentation allows each side to be optimized for its specific functional requirements without compromising the other.
Solution Approach 2:
Different spoke assembly patterns are applied to different sides of the wheel based on local functional requirements. The driving side requires optimal power transmission with controlled tension, while the coast side requires impact stress distribution. This local quality approach ensures each region has the structural characteristics best suited for its specific loading conditions.
Data Source
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AI summary
The bicycle wheel includes a rim, a hub, a driving device, a plurality of first side pulling spokes, a plurality of first side pushing spokes, and a plurality of second side spokes. The rim has a first side and a second side. The hub is located in a center of the rim. The driving device is connected to the hub which is located on the first side of the rim. Each of the first side pulling spokes and the first side pushing spokes is connected to the rim and the hub, and located on the first side of the rim, respectively. Each of the second side spokes is connected to the rim and the hub, and located on the second side of the rim.