Aircraft Parachute Rocket Bridle Deployment Control
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Solution Overview
Problem
Current aircraft parachute systems lack an efficient and reliable mechanism for controlled deployment and activation, particularly in emergency situations where rapid descent or loss of control occurs, leading to potential damage and safety risks.
Innovation Solution
The aircraft is equipped with a parachute system that includes a deployable canopy, a projectile object, and a bridle, where the projectile object is configured to pull the parachute assembly into a deployed position, and the bridle resists travel in the deployment direction, utilizing a rocket bridle and an inflatable cushion for controlled ejection and deployment, along with a deployment management system to ensure proper orientation and speed for safe landing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a parachute system is provided to slow the travel of an aircraft, then the descent speed is reduced and safety is improved, but the device complexity and control mechanism requirements increase
Solution Approach 1:
The parachute system is divided into multiple independent components: the parachute assembly, projectile object (rocket), and bridle. This segmentation allows each component to perform its specific function independently, simplifying the overall control mechanism while achieving reliable deployment and speed reduction.
Solution Approach 2:
The bridle is configured to automatically resist travel of the projectile object in the deployment direction without requiring external control mechanisms. The system uses the inherent mechanical properties of the bridle and projectile interaction to self-regulate the deployment process, reducing device complexity.
2Reliability
If a projectile object is used to pull the parachute assembly into deployed position, then deployment reliability is improved, but the force required and potential damage increase
Solution Approach 1:
The bridle is configured with dynamic resistance characteristics that adapt during deployment. Initially, it allows the projectile to accelerate and build force for reliable deployment, then progressively increases resistance to control the deployment speed and reduce peak forces, preventing damage while maintaining reliability.
Solution Approach 2:
The bridle's resistive force parameter changes during the deployment process. By designing the bridle with specific mechanical properties, the system transforms the constant force output of the projectile into a variable force profile that optimizes both deployment reliability and damage prevention.
3Stability of the object's composition
If the bridle resists travel of the projectile object during deployment, then controlled deployment is achieved, but the deployment time and energy loss increase
Solution Approach 1:
The bridle provides partial resistance during deployment rather than complete restriction. This allows the projectile to move forward sufficiently to deploy the parachute reliably while providing enough resistance to control the deployment process, achieving a balance between deployment control and time efficiency.
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
This solution enables a controlled and safe descent of the aircraft by ensuring the parachute is deployed correctly, minimizing damage and ensuring the safety of occupants and cargo, even in emergency situations such as loss of control or rapid descent.
Implementation Method 1
a rocket bridle and an inflatable cushion for controlled ejection and deployment
Implementation Method 2
a rocket bridle and an inflatable cushion for controlled ejection and deployment
Data Source
AI summary
An aircraft includes an airframe parachute system. The parachute system includes an activation system, an extraction system, a harness system, and a parachute assembly.