A Load Simulator Driven by Dual Motors

Abstract

The invention discloses a load simulator system driven by dual motors, which is composed of a main control computer, a cooperative motion controller, a torque loading motor, a torque compensation motor, a motor driver, a torque sensor, a rotational speed sensor, an angle sensor and a signal acquisition system, etc. , and connected with the test steering gear through the permanent magnet eddy current transmission system and the torque transmission device. The dual-motor-driven load simulator system disclosed in the present invention breaks through the conventional single-motor loading structure. Through the coordinated motion control of the dual motors, they learn from each other's strengths and complement each other's weaknesses, which can better eliminate the influence of redundant torque, and effectively improve the loading accuracy and accuracy of torque loads. Dynamic response speed.

Description

technical field [0001] The invention relates to a dual-motor driven load simulator, in particular to a dual-motor driven load simulator which uses a force servo control system to test the performance of a steering gear. Background technique [0002] The steering gear is the executive mechanism for the aircraft to control the flight attitude. The flight of the aircraft according to the predetermined trajectory in the air is to correct the course at any time by controlling the swing of the rudder surface. The performance of the aircraft is directly related to the dynamic quality of the flight process, affecting the flight safety of the aircraft and the quality of completing the flight mission. During the swing process, the rudder surface is subjected to various load moments, including inertia moment, damping moment and hinge moment generated by aerodynamic force. These load moments change greatly during the flight of the aircraft, especially the hinge moment changes with the ...

AI Technical Summary

Problems solved by technology

However, electro-hydraulic loading has the following defects: bulky; complex structure; polluting the environment; difficult maintenance, etc.

However, these methods reduce the open-loop gain and mechanical resonance frequency of the system to varying degrees, at the expense of the dynamic performance of the system, affecting the rapidity of the system.

The small improvement of the mechanical structure has many problems in practical applications, especially when the frequency response is high and the excess torque is still large under the condition of small gradient loading

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