Electromagnetic Release Device for Tri-Rotor UAV Free-Fall Testing
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Solution Overview
Problem
Current vertical falling tests of UAVs are hindered by the inability to simulate real free-falling scenarios due to restraint by ropes, which affects the accuracy of stress measurements and data relevance.
Innovation Solution
An electromagnetic release device for tri-rotor UAVs featuring a mounting frame with clamping and release modules, utilizing electromagnets for controlled release, and a fine-tuning mechanism to adjust the UAV's position, allowing for horizontal release and landing without rope restraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ropes are used to restrain the UAV during falling tests, then the UAV can be supported and controlled during the test, but the test cannot simulate real free-falling conditions and the stress measurements become inaccurate
Solution Approach 1:
The patent replaces the mechanical rope restraint system with an electromagnetic release system. Electromagnets mounted on a frame hold the UAV before testing, and when powered down, release the UAV to fall freely. This substitution eliminates the mechanical constraints that interfered with stress measurements while maintaining control and safety during the testing process.
2Reliability
If electromagnetic adsorption assembly is used to hold the UAV, then the UAV can be released without ropes to simulate free-falling, but the positioning precision of the UAV connecting plate needs to be improved
Solution Approach 1:
The patent incorporates a fine-tuning mechanism with adjustable bolts that allow dynamic positioning of the UAV connecting plate. The mechanism includes straight slots that permit movement in multiple directions, enabling operators to precisely adjust and lock the position of the connecting plate to match the UAV's mounting requirements, thereby achieving both free-falling simulation and precise positioning.
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 accurate simulation of free-falling conditions with electromagnetic control, ensuring safety, reliability, and cost-effectiveness by eliminating rope restraints and allowing precise stress analysis during tests.
Implementation Method 1
the end of the electromagnet mounting frame away from the mounting frame is equipped with an electromagnetic adsorption assembly
Implementation Method 2
electromagnets for controlled release
Data Source
AI summary
The present disclosure relates to the technical field of unmanned aerial vehicle (UAV) tests, and more particularly, to an electromagnetic release device for use in vertical falling tests of tri-rotor UAVs and including a mounting frame and multiple clamping and release modules arranged on the mounting frame. movable kits, which include a ferromagnetic plate matching and connected with the electromagnetic adsorption assembly, one end of the ferromagnetic plate is hinged with the electromagnet mounting frame, and the other end of the ferromagnetic plate is connected with the UAV connecting plate; The present disclosure uses electromagnetic control to accurately control the simultaneous opening of three clamping and release modules of a UAV, realizes the release and landing of the UAV in a horizontal status, and is characterized by simple structure and easy operation.