Method of Simulating Helicopter Control Force Sensitivity Using Dual Force Sources

Abstract

The invention provides a method for simulating operating force feeling of a helicopter by means of double force sources. A device used in the method forms a double loop control system simulating a parallel connection channel and a series connection channel of the helicopter. A steering gear serves as a force loading source for achieving the parallel connection channel of an operating system of the helicopter so as to complete force feeling simulation of the parallel connection channel; an electromagnetic force servo loading system serves as a force loading source of the series connection channel to achieve force feeling simulation of the series connection channel. An operating load system of the helicopter is comprehensively simulated through the double force loading sources, the operating force feeling of pilots is almost the same as that of a real plane, and naturalness of a flight simulator is improved. The parallel connection channel and the series connection channel are respectively controlled, and cross linking coupling does not exist; the parallel connection channel is identical to a control logical relationship of an original plane; the simulation force property of the series connection channel is known and modeling is convenient to achieve. Besides the fact that the device can simulate operations of the operating load system under automatic and manual driving conditions, the device can ensure that operating force feeling of other functions of the operating system is identical with that of a real helicopter.

Description

technical field [0001] The invention relates to a method for simulating the control force feeling of a helicopter by adopting dual force sources. Background technique [0002] The control load system is one of the important systems of the helicopter flight simulator. Usually, one method is to use the original steering gear for the force loading simulation of the parallel channel, and the series channel has no loading force source, so that the inertial force, friction force and damping force of the serial channel and the fault state generated by the simulation need to be removed The force cannot be simulated, which seriously affects the fidelity of the sense of force. Another method is to use the simulation part as the loading force source. Due to the error in the modeling of the loading force and the difference in the physical characteristics of the simulation part and the original steering gear, the fidelity of the force simulation is also limited to a certain extent. Co...

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Problems solved by technology

Usually, one method is to use the original steering gear for the force loading simulation of the parallel channel, and the series channel has no loading force source, so that the inertial force, friction force and damping force of the serial channel and the fault state generated by the simulation need to be removed Force cannot be simulated, seriously affecting the fidelity of force sense

Another method is to use the simulation part as the loading force source. Due to the error in the modeling of the loading force and the difference in the physical characteristics of the simulation part and the original steering gear, the fidelity of the force simulation is also limited to a certain extent.

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