Research On the Mechanical Operation Principle of Uavs Based on Aerodynamics and Control Strategies

Yuheng Sun

doi:10.54097/j0gky641

Authors

Yuheng Sun

DOI:

https://doi.org/10.54097/j0gky641

Keywords:

Mechanical operation principle; Aerodynamics; PID control; Coupling model; Complex environment.

Abstract

To address current UAV mechanical operation research focusing on ideal environments and poor adaptability to complex scenarios, this paper studies UAV mechanical mechanisms in complex environments to improve relevant theories and harsh environment adaptability. It reviews aerodynamics and control algorithms, then builds a coupled model linking lift/drag formulas with PID parameters, verifying its validity (lift/drag prediction error mostly <5%). Experiments in strong wind (0-15 m/s), rain/snow (moderate rain 10-25 mm/h, light snow 2.5-5 mm/h), and low temperature/pressure (-10-0℃, 80-90 kPa) show crosswind causes more lift loss (30% at 15 m/s) than headwind, snow impacts stability more than rain, and low temperature/pressure reduces lift by 15% with PID delay. The model enables reliable prediction for harsh-environment UAV design. Limitations and future directions (snow accumulation model improvement, practical verification) are noted.

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