Coaxial UAV Motor Load Simulation for Compact Aging Tests
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Solution Overview
Problem
Existing motor testing devices for UAVs face issues with large space occupation, installation difficulty, noise, and inefficiency due to the use of large propellers, which complicate the aging test process and reduce assembly efficiency.
Innovation Solution
A testing device that uses a simulated motor coaxially arranged with the tested motor to simulate load conditions, reducing the size and noise, and includes a power supply to drive the simulated motor at varying speeds to mimic propeller loads, with a shaft coupling and voltage stabilizer for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large propeller is used to simulate aging test load, then the motor performance testing is more accurate, but the support stand height increases and space occupation increases
Solution Approach 1:
The patent applies the copying principle by replacing the actual large propeller with a simulated motor that copies the load characteristics. The simulated motor generates electrical current during rotation that feeds back to the tested motor, replicating the propeller's load effects without requiring the physical propeller's large dimensions, thus reducing space occupation while maintaining testing accuracy
Solution Approach 2:
The patent substitutes the mechanical propeller system with an electrical simulation system. Instead of using a mechanical propeller that requires large space, the simulated motor uses electromagnetic induction to generate current that simulates the propeller's load, replacing the mechanical approach with an electrical one that occupies less space
2Measurement precision
If a large propeller is used to simulate aging test load, then the motor performance testing is more accurate, but the installation difficulty increases
Solution Approach 1:
The simulated motor copies only the essential load characteristics of the propeller through electrical current generation, eliminating the need to handle and install a large, complex physical propeller. This copying approach maintains testing accuracy while significantly simplifying the installation process
Solution Approach 2:
The patent extracts the essential function of the propeller (generating load on the motor) and separates it from the physical propeller structure. By taking out only the load-simulating function and implementing it through the simulated motor's electrical current generation, the complex installation of a large propeller is avoided
3Reliability
If a large propeller rotates at high speed to test motor, then the aging test is more realistic, but the noise increases
Solution Approach 1:
The patent replaces the high-speed mechanical rotation of a large propeller with an electrical simulation system. The simulated motor generates current that simulates the propeller's load effects without requiring high-speed mechanical rotation, thereby eliminating the noise generated by rapid propeller movement while maintaining aging test realism
Solution Approach 2:
The simulated motor copies the electrical load characteristics of the propeller without replicating its mechanical motion. By copying only the essential electrical parameters (current generation during rotation) rather than the physical motion, the system achieves realistic aging test conditions without the noise associated with high-speed propeller rotation
4Measurement precision
If a large propeller is used for motor testing, then the load simulation is more accurate, but the test time increases
Solution Approach 1:
The simulated motor copies the propeller's load characteristics through electrical current generation, enabling faster setup and more rapid testing. The copying approach allows the system to achieve accurate load simulation without the time-consuming preparation and handling required for large physical propellers
Solution Approach 2:
The simulated motor is pre-configured to generate the necessary load current, eliminating the need for on-site propeller installation and adjustment. This preliminary preparation of the simulation system reduces setup time and allows testing to begin more quickly while maintaining accurate load simulation
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 minimizes space occupation, simplifies installation, reduces noise, and enhances assembly efficiency by accurately simulating propeller loads, thereby improving test accuracy and reducing power consumption.
Implementation Method 1
the simulated motor can be configured to generate a current during rotation. The current can supply power to the tested motor.
Implementation Method 2
the power supply can be configured to drive the simulated motor to rotate at a second speed to simulate the load of the working process of the tested motor.
Data Source
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AI summary
A testing device for an unmanned aerial vehicle where the testing device tests the performance of a tested motor (100). The testing device has a support stand (200), and the tested motor (100) is arranged on the support stand (200). A simulated motor (300) is arranged on the support stand (200), and the simulated motor (300) is coaxially arranged with the tested motor (100) to simulate a load when the tested motor (100) is in operation, thereby allowing a performance test of the tested motor (100).