Ice Skate Blade Composite Structure for Strength and Weight
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Solution Overview
Problem
Ice skates face challenges in balancing strength and lightness, as well as durability against corrosive ice conditions, with existing blades being either too heavy or not robust enough for performance.
Innovation Solution
The ice skate blade is designed using a combination of three different materials: a polymeric upper member, a metallic ice-contacting lower member with a distinct base and anchor, where the base and anchor are made of different metallic materials, and the upper member includes a composite material with carbon fibers, strategically arranged and secured to provide strength and lightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the blade is made of heavy metallic materials to ensure strength and durability, then the blade can withstand significant forces and corrosive ice conditions, but the overall weight of the ice skate increases, affecting skating performance
Solution Approach 1:
The blade is constructed using composite materials including a polymeric upper member, a metallic ice-contacting lower member, and a metallic anchor, strategically arranged and secured to one another. This composite structure allows the blade to achieve the necessary strength and corrosion resistance while minimizing weight compared to traditional solid metallic blades.
Solution Approach 2:
The blade is divided into distinct functional segments: a polymeric upper member for structural support, a metallic lower member for ice contact and durability, and a metallic anchor for secure attachment. This segmentation allows each component to be optimized for its specific function while contributing to overall weight reduction.
2Weight of moving object
If the blade is made lightweight to improve skating performance, then the blade becomes more responsive and easier to maneuver, but the blade may not be robust enough to withstand significant forces and corrosive ice conditions
Solution Approach 1:
The use of composite materials provides both weight reduction and enhanced durability. The polymeric upper member offers corrosion resistance and structural integrity, while the metallic lower member provides durability against ice conditions, ensuring the lightweight blade remains reliable under harsh skating conditions.
Solution Approach 2:
Different materials are strategically placed in specific locations: the polymeric material is positioned in the upper member where corrosion resistance is beneficial, while the metallic material is used in the lower member and anchor where strength and durability are most critical for withstanding forces and ice contact.
3Ease of manufacture
If the blade uses a single material construction for simplicity, then the manufacturing process is easier and cost-effective, but the blade cannot simultaneously optimize for both lightness and strength under harsh conditions
Solution Approach 1:
The blade employs a multi-material composite construction with a polymeric upper member, metallic lower member, and metallic anchor. This approach sacrifices some manufacturing simplicity but enables optimized performance by selecting materials specifically for their properties: polymeric materials for corrosion resistance and lightness, and metallic materials for strength and durability in critical areas.
Data Source
AI summary
A blade for an ice skate (e.g., for playing hockey). The ice skate comprises a skate boot for receiving a foot of a user and a blade holder for holding the blade. The blade may be designed to be lightweight yet strong and possibly provide other performance benefits to the user, including by being made of different materials (e.g., at least three different materials) that are strategically arranged and secured to one another.