Crosslinking impact assessment method for inertia coupling property between aircraft attitude movement channels
A technology of aircraft and passage, applied in the field of aerospace
Inactive Publication Date: 2015-05-20
BEIJING AEROSPACE AUTOMATIC CONTROL RES INST
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Usually, the coupling characteristics between the channels can include inertial coupling, kinematic coupling and aerodynamic coupling; at present, only qualitative analysis is often performed on the inertial coupling characteristics between the three channels of a plane-symmetrical aircraft; there is a lack of interactive analysis of the inertial coupling characteristics between channels. A more accurate quantitative analysis of the impact of
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[0054] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.
[0055] As used herein, terms such as "module" and "system" are intended to include computer-related entities such as, but not limited to, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a module may be, but is not limited to being limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both an applicatio...
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The invention discloses a crosslinking impact assessment method for inertia coupling property between aircraft attitude movement channels. The crosslinking impact assessment method comprises the following steps: determining the angular velocities of a yaw channel and a pitching channel of an aircraft; determining the inertia of a rolling channel, the yaw channel and the pitching channel of the aircraft, as well as the product of inertia between the rolling channel and the yaw channel; calculating the crosslinking equivalent torque to serve as the assessed crosslinking impact on the angular velocity coupling property of the rolling channel from the angular velocities of the yaw channel and the pitching channel according to the determined angular velocities, inertia and product of inertia. According to the technical scheme, the crosslinking impact on the inertia coupling property of the rolling channel of the aircraft is quantified to facilitate comparison between the crosslinking impacts on the inertia coupling properties of the rolling channel of the aircraft under different flight conditions and in different flight stages, so that the design and the research on an aircraft attitude controller are facilitated.
Description
technical field [0001] The invention relates to the field of aerospace, in particular to a method for determining the cross-linking influence of inertial coupling characteristics between aircraft attitude motion channels. Background technique [0002] During the flight of the aircraft, its flight attitude can usually be divided into the angular velocity of the three attitude motion channels of roll, yaw and pitch. For the axisymmetric aircraft, the coupling among the three channels is very weak, so the influence of the coupling on the flight attitude of the axisymmetric aircraft can be regarded as a random small disturbance, and a small disturbance aerodynamic model of the axisymmetric aircraft can be constructed. At present, usually according to the small disturbance aerodynamic model, three independent attitude controllers are set in the axisymmetric aircraft, which are used to control the angular velocity of the aircraft's pitch channel, yaw channel and roll channel respe...
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IPC IPC(8): G05D1/08
Inventor 柳嘉润黄万伟包为民马卫华祁振强唐海红
Owner BEIJING AEROSPACE AUTOMATIC CONTROL RES INST