Fiber-Textured String Shooting Device for Lift and Travel
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Solution Overview
Problem
Propelling a flexible member such as a rope, string, or chain is challenging due to its inherent flexibility, which causes it to succumb to gravity quickly, and achieving extended travel distance requires increased air friction and speed or optimizing the exit angle, but balancing physical characteristics and apparatus limitations is difficult.
Innovation Solution
A string shooting device with a string having a surface texture of radiating fibers to increase air friction and generate lift, featuring a housing with a loading slot and guide slots for easy attachment and detachment, and a pair of wheels to propel the string, creating a turbulent air boundary layer for lift generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a flexible member is propelled at high speed to extend its arc, then the travel distance is improved, but the device complexity and energy consumption increase
Solution Approach 1:
The string surface texture is modified to increase air friction, changing the aerodynamic parameters of the flexible member to generate lift and extend travel distance without requiring excessive propulsion energy
Solution Approach 2:
Air friction is utilized to generate lift force that counteracts gravity's effect on the flexible member, allowing it to travel further without succumbing to gravity as quickly
2Length of moving object
If the exit angle is optimized to extend the arc, then the travel distance is improved, but the device complexity increases
Solution Approach 1:
The string's aerodynamic properties are modified through surface texture changes, allowing the existing exit angle to produce optimal arc without requiring complex angle adjustment mechanisms
3Speed
If a smooth string is used to reduce air friction, then the propulsion efficiency is improved, but the lift generation capability deteriorates
Solution Approach 1:
The string surface texture is specifically designed to increase air friction, changing the aerodynamic parameters to generate turbulent air boundary layer and lift force that counteracts gravity
Solution Approach 2:
Increased air friction is harnessed to generate lift force that counteracts gravity, allowing the string to maintain flight longer and travel further
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 device achieves a floating effect by generating lift against gravity, with varying string tension creating unique wave patterns responsive to user movement, enhancing the visual and operational dynamics of the propelled string.
Implementation Method 1
The plurality of fibers extending away from the axis generate a turbulent air boundary layer around the string in response to the string being propelled through the air by the pair of wheels
Implementation Method 2
the string includes a surface texture configured to increase air friction in response to the string being propelled through the air by the pair of wheels
Implementation Method 3
the looped string, at a distal portion furthest from the body, generates lift from the turbulent air boundary layer in the string direction opposed to the gravity vector
Data Source
AI summary
Provided herein is a string shooting device having a string capable of generating lift when propelled from the string shooting device and a guide to readily attach and detach the string from the string shooting device. A string shooting device described herein includes: a body; a housing attached to the body; a pair of wheels, where at least one of the pair of wheels is a driven wheel; and a string, where the string includes a surface texture configured to increase air friction in response to the string being propelled through the air by the pair of wheels. The string of an example embodiment defines an axis along which the string extends, and where the string includes a plurality of fibers extending away from the axis.