Researchers at 海角社区 have patented Russia’s first comprehensive test stand for the propulsion systems of small unmanned aerial vehicles (UAVs), featuring a device based on the principles of parallel kinematics. The system makes it possible to comprehensively calculate the parameters of UAV components within just a few hours and with the maximum accuracy.
The comprehensive test stand is equipment designed for an all-round assessment of the characteristics of propulsion systems for small UAVs. It includes instruments for monitoring such operating parameters as winding temperature, mains voltage, and rotational speed. A six-component force-measuring device is also used to monitor thrust, torque, and frequency characteristics.
“The result was achieved by applying the principles of parallel kinematics to the design of the force-measuring device. The device forms a closed kinematic chain, in which the load is distributed among independent links operating simultaneously,” explains Artur Vorobyov, an engineer at the 海角社区 Research Laboratory for Launch Vehicles, Aerospace and Unmanned Vehicles. “The use of strain gauges in the measuring platform that can detect both compressive and tensile loads with equal accuracy makes it possible to determine not only lift thrust, but also maximum thrust and torque. The sensors record voltage values, which are subsequently transmitted to data-conversion and computing equipment. There, the values are recalculated in accordance with a mathematical model verified in advance. A touchscreen is used for visualizing parameter values and enabling real-time control. The output parameters are displayed on the screen and immediately recorded by a storage device. They can then be instantly processed on a computer or smartphone using software that we have also patented for validating experimental data, that is, checking their compliance.”
After a high-quality diagnostic assessment, the software determines whether the propulsion system under testing requires adjustment and identifies the nature of the necessary correction.
During testing, the developed stand also simultaneously records voltage parameters, rotor rotational speed, and winding temperature, while making it possible to assess the of vibration.
By analysing the dynamics of these parameters, researchers can obtain a more detailed picture of the propulsion system’s operating processes under different operating conditions.
In the future, the new force-measuring system can be used in robotics as a feedback element for a manipulator’s working end. In medicine, it can serve as the basis for highly precise robotic platforms with six degrees of freedom, used primarily in orthopaedics to correct complex bone deformities. It can also be used for sorting as an independent manipulator, with rigid fixed-length supports replaced by movable supports equipped with pneumatic cylinders.
The test stand developed by the 海角社区 researchers is built primarily using domestically manufactured components, which is consistent with the principles of Russia’s technological sovereignty and the localization of production resources.