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A Calculation Method for Evaluation Index of Control Capability of Multi-rotor Aircraft

A technology of multi-rotor aircraft and control capability, applied in the field of flight control

Active Publication Date: 2016-08-17
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of assessing the controllability of multirotor aircraft in the event of rotor failure or damage

Method used

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  • A Calculation Method for Evaluation Index of Control Capability of Multi-rotor Aircraft
  • A Calculation Method for Evaluation Index of Control Capability of Multi-rotor Aircraft
  • A Calculation Method for Evaluation Index of Control Capability of Multi-rotor Aircraft

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Embodiment Construction

[0055] See figure 1 — image 3 , the present invention provides a calculation process of the control ability evaluation index of a common quadrotor aircraft, and its specific steps are as follows:

[0056] Step 1: Determine the basic physical parameters of the multi-rotor aircraft

[0057] The number of quadrotor rotors is m=4, and the mass is m a =1.535kg, acceleration of gravity g=9.8m / s 2 , the position parameters of each rotor on the aircraft and the efficiency parameters of each rotor

[0058]

[0059] The maximum lift K=6.125N that each rotor can provide, coefficient k μ =0.1; according to figure 1 and figure 2 Get the aircraft control efficiency matrix B f

[0060] B f = b 1 b 2 b ...

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Abstract

The invention discloses a method for calculating a control ability evaluation index of a multi-rotor-wing aircraft. The index calculating process comprises the first step of determining basic physical parameters of the multi-rotor-wing aircraft, the second step of calculating an intermediate variable and the third step of calculating the control ability evaluation index of the multi-rotor-wing aircraft. The evaluation index of the control ability of the multi-rotor-wing aircraft is the aircraft gravity distance controlled quantity reachable set boundary minimum value, when the control ability index is zero, it can definitely show that the multi-rotor-wing has no control ability and cannot normally fly any more, and the larger the control ability index is, the easier the aircraft is controlled. The method has good practical value and application prospects in the flying control technical field.

Description

technical field [0001] The invention relates to a calculation method of a multi-rotor aircraft control capability evaluation index, belonging to the technical field of flight control. Background technique [0002] In the field of flight control, it is very important and necessary to ensure the flight safety of the aircraft, especially to ensure the safe flight of the aircraft when the aircraft fails, which will reduce the losses caused by the crash of the aircraft. The ability to evaluate the control capability of a multi-rotor aircraft in real time is a prerequisite for the aircraft to achieve safe flight. The component with the highest failure probability of a multi-rotor aircraft is its rotor, so it is of great significance to design a calculation method for the evaluation index of the control ability of a multi-rotor aircraft. Contents of the invention [0003] The invention provides a calculation method for the evaluation index of the control capability of the multi-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
Inventor 全权杜光勋邓思阳蔡开元
Owner BEIHANG UNIV