Eight-rotor drone applied to aeromagnetic survey

Abstract

The invention discloses an eight-rotor unmanned plane applied to magnetic airborne survey, and belongs to the technical field of aircrafts. Four main rotor systems are fixedly connected with four platforms of a main frame, wherein the inner ends of four adjusting rotor systems are fixedly connected with eight fixed points of the main frame; the four adjusting rotor systems are arranged in a cross shape, and are staggered with a left frame, a long frame and a right frame, which are arranged in the cross shape at 45 degrees; the outer ends of the four adjusting rotor systems are fixedly connected with upper and lower rings of the main frame; and an automatic balance inductor is fixedly connected with four neutral plates of the main frame. The system disclosed by the invention is high in efficiency, the redundancy of the system can be reduced, the yaw ability and the maneuverability of the airplane are improved, the complexity that the rotors of the aircraft take charge of carrying out flying action can be also lowered, the coupling reaction between control channels is reduced, and the flight control strategy is relatively easy to achieve, thus the utilization efficiency of the rotors is improved. The eight-rotor unmanned plane is suitable for the requirements of flight carrying platforms such as heavy load, low altitude, low speed, and small vibration in airborne magnetic prospection; autonomic dynamic balance monitoring and adjusting can be achieved; and the thermal adaptability is high.

Description

Technical field [0001] The invention belongs to the technical field of aircraft, and specifically relates to an eight-rotor unmanned aerial vehicle applied to aeromagnetic measurement. Background technique [0002] With the sustained and rapid economic development, my country's existing resources have been difficult to meet the needs of economic construction and development, so there is an urgent need to find new mineral resources. However, my country has a vast territory and complex geological conditions. Many useful mineral resources are mostly distributed in inaccessible mountainous areas and valleys. Traditional ground magnetic exploration methods cannot be implemented for exploration, and due to the consideration of flight safety issues in manned-aircraft geophysical magnetic surveys, large flying altitudes result in weaker geophysical signals and low resolution, which is difficult to meet the requirements of fine prospecting . [0003] Due to the many characteristics of rot...

AI Technical Summary

Problems solved by technology

It changes the lift of different rotors by adjusting the speed of the four rotors, and changes the overall resultant force and moment of the aircraft to complete the control of the flight attitude. Fault, quadcopter drone will be in danger of crashing

The octorotor UAV is similar to the quadrotor UAV. It uses the speed change of the coplanar eight rotors or the coplanar four coaxial rotors to control the pitch, roll, yaw and lift of the aircraft. Compared with the quadrotor UAVs, while increasing the lift, have four redundant control margins. The overall flight efficiency is not high. It can still fly safely in the case of a few rotor failures, which improves the safety of the system. The eight-rotor When completing one of the actions of pitch, roll, yaw, and altitude, eight rotors are required to change the speed at the same time, but in theory, only two rotors are needed to complete one of the actions, so if all four basic actions are completed , only four rotors are needed. The above-mentioned rotor UAVs have defects in efficiency, safety and maneuverability. Therefore, it is necessary to develop a new type of multi-rotor UAV for aeromagnetic measurement. While improving, it reduces the redundancy of multi-rotor UAVs, saves efficiency and redundancy, and meets the needs of UAV aeromagnetic survey missions

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