Variable Stiffness Sporting Equipment Using Nitinol Phase Transitions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sporting equipment, such as skis, snowboards, bows, and fishing rods, have fixed stiffness/flexibility properties that cannot be adjusted to adapt to changing conditions or user needs, requiring multiple pieces of equipment for different skill levels and conditions.
Innovation Solution
Integration of nitinol components treated with specific thermal processes to create a digitally controlled variable stiffness system, allowing athletes to adjust the stiffness of equipment through a control unit and heating elements, enabling phase shifts between softer and more rigid states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed stiffness sporting equipment is used, then manufacturing simplicity is maintained, but adaptability to different conditions and skill levels deteriorates
Solution Approach 1:
The patent applies the dynamics principle by implementing a variable stiffness system that allows the sporting equipment to change its mechanical properties dynamically. The stiffness of the equipment can be adjusted in real-time based on skiing conditions, skill level, and user preferences, transforming a static structure into a dynamic one that adapts to different operational requirements.
Solution Approach 2:
The patent employs parameter changes by modifying the stiffness parameter of the equipment through controlled phase transitions of nitinol components. By changing the physical state of these components between martensitic (softer) and austenitic (stiffer) phases, the equipment's mechanical properties are adjusted without altering its fundamental structure, enabling adaptation to various conditions.
2Adaptability or versatility
If multiple pieces of equipment are used for different conditions, then adaptability improves, but device complexity and cost increase
Solution Approach 1:
The patent implements universality by designing a single sporting equipment that can perform multiple functions across different skiing conditions and skill levels. The variable stiffness mechanism enables one piece of equipment to replace what would traditionally require multiple specialized items, allowing a single ski to function as both a soft ski for beginners and a stiff ski for advanced conditions.
3Adaptability or versatility
If nitinol components with phase shift capability are integrated, then stiffness adaptability improves, but manufacturing complexity increases
Solution Approach 1:
The patent utilizes phase transitions of nitinol (nickel-titanium alloy) components to achieve variable stiffness. The nitinol material can transition between martensitic and austenitic phases through temperature changes, allowing the equipment to switch between softer and stiffer states. This phase transition mechanism provides a reliable and controllable method for stiffness adjustment.
Solution Approach 2:
The patent applies thermal effects to control the phase transitions of nitinol components. By applying heat through integrated heating elements, the nitinol material undergoes phase changes that alter its mechanical properties. The thermal expansion and phase transformation of the nitinol enable precise control over the equipment's stiffness characteristics.
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
Enables a single piece of equipment to be adapted to varying conditions, improving control and reducing injury risk by dynamically modifying stiffness in response to user input and environmental changes.
Implementation Method 1
causing a phase shift in a nitinol component embedded within or upon the item of sporting equipment
Implementation Method 2
causing a heating element proximate to the nitinol component to impart the phase change
Data Source
AI summary
A system, method, and apparatus for an athlete to variably control the flexibility and stiffness parameters of a piece of athletic equipment to select a desired performance characteristic of the equipment based on the stiffness parameter. According to certain embodiments discussed herein, an item of sporting equipment may be embedded, impregnated, lined, or encased using nitinol components, wherein the nitinol components may themselves be treated using a specific method in order to achieve the desired transformation results, as described below.