Aircraft Roller Runway Assembly for Shorter Takeoff and Landing
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Solution Overview
Problem
Current aircraft take-off and landing systems require long runways, consume significant energy, and lack flexibility in adapting to different runway conditions and aircraft sizes, leading to increased costs and safety risks.
Innovation Solution
An aircraft take-off and landing device comprising rollers, gears, motors, and a movable wheel assembly that allows aircraft to take off and land on shorter runways, eliminating the need for catapults and arresting wires, and incorporating anti-skid patterns for stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional long runways and catapults are used for aircraft take-off and landing, then aircraft can achieve sufficient acceleration and deceleration, but the device occupies large space and consumes significant energy
Solution Approach 1:
The patent replaces the traditional mechanical catapult system with an elastic propulsion system using compressed air or gas to launch the aircraft, and replaces arresting wires with an elastic deceleration system. This substitution reduces energy consumption and eliminates the need for long runways while maintaining safety through controlled elastic forces.
Solution Approach 2:
The patent employs pneumatic or hydraulic systems to store and release elastic energy for aircraft launch and recovery. Compressed gas or fluid pressure is used to propel the aircraft forward during take-off and to provide controlled deceleration during landing, replacing traditional mechanical systems with more energy-efficient pneumatic/hydraulic mechanisms.
2Adaptability or versatility
If traditional fixed runway systems are used, then aircraft operations are standardized, but the system cannot adapt to different aircraft sizes and runway conditions
Solution Approach 1:
The patent introduces adjustable and movable components in the runway system, including adjustable elastic element configurations, movable support structures, and adaptable roller arrangements. These dynamic elements allow the system to be reconfigured for different aircraft weights, sizes, and operational requirements without requiring complete system replacement.
Solution Approach 2:
The patent designs the elastic launch and deceleration system to serve multiple functions: it can accommodate different aircraft types, provide both take-off propulsion and landing deceleration, and adapt to various runway conditions. This multi-functionality increases versatility while managing complexity through integrated design.
3Length of stationary object
If traditional mechanical braking systems are used for aircraft deceleration, then deceleration is reliable, but the system consumes significant energy and requires long stopping distances
Solution Approach 1:
The patent replaces traditional mechanical friction-based braking systems with an elastic deceleration system that uses stored elastic energy to provide controlled resistance during aircraft landing. This elastic system reduces stopping distance and energy consumption by utilizing energy storage and release mechanisms rather than pure friction braking.
Solution Approach 2:
The patent employs a progressive deceleration mechanism where the elastic elements engage gradually rather than all at once, providing controlled partial action that matches the aircraft's kinetic energy dissipation needs. This prevents excessive force application while achieving effective deceleration over a shorter distance with reduced energy consumption.
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 aircraft to take off and land on shorter runways, reduces energy consumption, increases space utilization, and enhances safety by preventing accidents and adapting to various aircraft sizes.
Implementation Method 1
elastic shafts that are located on the elastic roll road shafts are arranged on both sides of the partition respectively, the elastic shafts on both sides are connected to the aircraft wheels through an elastic bow
Implementation Method 2
the airbag anti-skid pad is arranged on the upper end surface of the partition
Implementation Method 3
a gear is installed on the outer ring of the first bearing, the lower part of the gear on one side is meshedly connected with a first large gear, the first large gear is driven by a first motor
Data Source
AI summary
An aircraft take-off and landing comprises two first rollers installed on the runway for the front and rear wheels of an aircraft; a take-off groove is arranged between the two first rollers, first bearings are installed on both sides of the first roller, a gear is installed on the outer ring of the first bearing, the lower part of the gear on one side is meshedly connected with a first large gear, the first large gear is driven by a first motor; the rear sides of the two first rollers are provided with a plurality of second rollers meshing with each other, and a lower roller meshing with the second rollers, a full-length roller and a rubber belt, the lower part of the lower roller is meshedly connected with a second large gear, the second large gear is driven by a second motor.