Dynamic simulation novel principle of inertia

A technology of dynamic simulation and inertia simulation, applied in teaching models, educational tools, instruments, etc., can solve problems such as inability to compensate aircraft engine aerodynamic resistance and front wheel friction, and difficulty in timely adjustment of inertia disc inertia, etc., to achieve originality and economy Benefits, significant economic benefits, and the effect of saving money

Inactive Publication Date: 2009-12-16
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0003] Because the mass of the inertia disk of the aircraft brake test bench is fixed, the traditional experimental method is only effective for the quality of a specific aircraft, and it is difficult

Method used

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  • Dynamic simulation novel principle of inertia
  • Dynamic simulation novel principle of inertia
  • Dynamic simulation novel principle of inertia

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Experimental program
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Embodiment Construction

[0011] The present invention will be described in further detail below.

[0012] The inertia simulation system mainly includes: inertia disk, motor, frequency converter, torque sensor and rotary encoder.

[0013] Such as figure 1 , figure 2 As shown, the inertia disk is a solid iron cylinder, which is used to simulate the inertia of the airstrip and part of the aircraft. The motor adopts a variable frequency speed regulating motor, which can apply torque in both positive and negative directions to the inertia disk, so as to realize the simulation of part of the inertia of the aircraft and the compensation of engine residual thrust, aerodynamic resistance, front wheel friction, etc. The reference value of torque is controlled by simulation given by the computer. The torque sensor measures the output force of the motor to form a torque closed-loop control. The rotary encoder forms the speed control of the inertia disk by counting and measuring the rotational speed of the in...

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Abstract

The invention belongs to the control technique of mechatronic systems, and relates to an improved simulation system of brake experiment inertia of the traditional airplane. The system comprises an inertia disk, a motor, a transducer, a moment sensor, a rotation coder, and the like. The simulation system of brake experiment inertia of the traditional airplane adopts translation inertia of a rotation inertia simulation airplane with a mechanical inertia disk with fixed mass, the system has large volume and difficult inertia adjustment, and the brake system of a specific mass airplane is experimented only. Aiming at the problems, the simulation method of the brake experiment electric inertia of the airplane is provided. The method can realize the electric simulation of the mechanical inertia, and can smoothly adjust the whole inertia of the experiment system, thereby being capable of testing brake systems of the airplanes with different masses. The method can also compensate residual push power, pneumatic resistance and front wheel friction of an engine of the airplane during the brake. The research result provides an effective method for the inertia simulation of the airplane during the brake experiment, saves huge fund, and has ingenuity and remarkable economic benefit.

Description

technical field [0001] The invention belongs to the electromechanical system control technology and relates to the improvement of the inertia simulation system of the traditional aircraft braking experiment. Background technique [0002] As an important airborne equipment, the aircraft braking system has an important impact on the safety of the aircraft's take-off and landing. The inspection of its performance and quality is an important measure to ensure the safety of the aircraft. Usually, the aircraft brake test bench uses a large-diameter inertial disc to simulate the runway, and converts the translation of the aircraft into the rotation of the inertial disc to simulate the actual working conditions of the wheels during the braking process of the aircraft. Various parameters of the aircraft tires and brakes under the pressure and other parameters, so as to test the various indicators of the tested wheel. [0003] Because the mass of the inertia disk of the aircraft bra...

Claims

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Application Information

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IPC IPC(8): G09B25/02
Inventor 焦宗夏李波李丰羽
Owner BEIHANG UNIV
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