A method for on-line diagnosis of rotorcraft mechanical installation faults

Abstract

The invention discloses an on-line diagnosis method for mechanical installation faults of a rotor craft. The on-line diagnosis method for the mechanical installation faults of the rotor craft can improve flight control precision. According to the on-line diagnosis method for the mechanical installation faults of the rotor craft, remote control signal parameters and servo signal parameters in the actual flight process of the rotor craft are monitored, recorded and analyzed, whether mechanical installation errors exist is detected through the data analysis method, and the improvement information is supplied to operators. Due to complexity of the flight environment of the rotor craft, firstly, fuzzy classification is carried out on remote control signal data to obtain the current flight state of the craft; secondly, through the ERP periodical detection and line-up competition algorithm, whether the current flight parameters of the rotor craft meet the original dynamical structural design parameters of a frame is judged to obtain corresponding fault diagnosis and provide frame adjustment advice for the operators of the rotor craft; finally, the operators can be helped to achieve accurate flight control, and the flight control accuracy can be greatly improved. The on-line diagnosis method for the mechanical installation faults of the rotor craft is suitable for being popularized and applied in the technical field of craft debugging.

Description

technical field [0001] The invention belongs to the technical field of aircraft debugging, and in particular relates to an online diagnosis method for mechanical installation faults of a rotorcraft. Background technique [0002] A quadrotor is an unmanned aerial vehicle with four rotors (propellers). The four rotors have a cross-shaped or X-shaped cross structure, and the two opposing rotors form a group with the same rotation direction; different groups of rotors have different rotation directions. Different from traditional helicopters, quadrotors can only achieve various actions by changing the speed of the rotor (propeller). It can realize flight actions such as vertical take-off and landing, hovering, advance and retreat, etc. It has the characteristics of simple mechanical structure, high space flexibility, simple control, and good autonomy. Inspection and other fields have broad application prospects, and it is the frontier field of intelligent robot research in rec...

AI Technical Summary

Problems solved by technology

This type of mechanical installation error diagnosis method has low accuracy. At the same time, due to the vibration of the rotorcraft itself and the changes in the surrounding environment during flight, it is easy to cause changes in the mechanical structure of the rotorcraft, directly affect the flight control accuracy of the rotorcraft, and even cause a crash. Fault

Images