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Decoupling design method for helicopter control

A design method and helicopter technology, applied in calculation, instrumentation, electrical digital data processing, etc., to achieve the effect of reducing driving skill requirements, reducing workload, and improving accuracy

Active Publication Date: 2016-01-20
CHINA HELICOPTER RES & DEV INST
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The present invention provides a helicopter manipulation decoupling design method to solve or at least alleviate at least one of the problems in the background art

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  • Decoupling design method for helicopter control
  • Decoupling design method for helicopter control
  • Decoupling design method for helicopter control

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a decoupling design method for helicopter control, relating to the technical field of helicopters. The decoupling design method for a helicopter comprises the following steps: 1, establishing an aerodynamic force and moment model for a helicopter component, and substituting the obtained force and moment into a movement equation of six freedom degree to obtain a nonlinear differential equation set; 2, solving trim control amounts of control mechanisms in helicopter flight according to the nonlinear differential equation set; 3, determining a coupling relationship between the control mechanisms, and substituting the trim control amounts in the step 2 into the coupling relationship; 4, verifying that whether the design improves the driving quality or not via a flight simulation test; 5, carrying out flight testing. The decoupling design method disclosed by the invention has the advantage that in the flight process, the tail rotor tension and the horizontal trim can be automatically adjusted just by the total pulling moment. The control correction precision is improved, the workload of a pilot is reduced, and the requirements on driving skills of the helicopter are reduced.

Description

technical field [0001] The invention relates to the technical field of designing helicopters, and in particular relates to a method for decoupling design of helicopter manipulation. Background technique [0002] Helicopters rely on the rotor system to generate lift and pull. In order to balance the rotor reaction torque, it usually has a tail rotor that generates lateral pull. Because the rotor is both the lifting surface and the main control surface, the coupling between the various control channels of the helicopter is serious. The control system of the helicopter includes collective control, lateral control of the joystick, longitudinal manipulation of the joystick and pedal control. Collective control makes the helicopter produce vertical motion, but at the same time brings about a change in reaction torque, so pedal control is required to change the tail rotor pull. The change in tail rotor pull changes the lateral trim, so corrections to the lateral control of the ro...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 马成江殷士辉万海明孙强徐瑞红
Owner CHINA HELICOPTER RES & DEV INST
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