Many-body dynamics simulation analysis method for airborne direct-drive electromechanical actuator system

An electromechanical actuator and multi-body dynamics technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as complex operation, low work efficiency, and failure to consider the nonlinear characteristics of the system, and achieve simple operation , high work efficiency, and convenient for later analysis

Inactive Publication Date: 2017-09-15
XI AN JIAOTONG UNIV
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Problems solved by technology

The existing methods do not consider the nonlinear characteristics of the system, and the work efficiency is low and the operation is complicated

Method used

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  • Many-body dynamics simulation analysis method for airborne direct-drive electromechanical actuator system
  • Many-body dynamics simulation analysis method for airborne direct-drive electromechanical actuator system
  • Many-body dynamics simulation analysis method for airborne direct-drive electromechanical actuator system

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Embodiment Construction

[0034] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0035] see figure 1 , the present invention specifically comprises the following steps:

[0036] 1) Obtain the characteristic parameters of the switched reluctance motor.

[0037] The switched reluctance motor is an 8 / 6 four-phase switched reluctance motor. The characteristic parameters include the size of the motor, parameters of the stator and rotor, rated voltage, rated torque, rated speed and rated power.

[0038] Establish the model of the switched reluctance motor with hollow structure in the finite element simulation software. In the Maxwell software, select Insert RMxprt Design, input the parameters of Circuit, Stator, Rotor, and Shaft, and establish the model of the switched reluctance motor; obtain the characteristics of the motor through Analyze All Curves, click Create RMxprt Report to add curves, including voltage, current, speed, an...

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Abstract

The invention discloses a many-body dynamics simulation analysis method for an airborne direct-drive electromechanical actuator system, and the method gives consideration to nonlinear characteristics of a system. Moreover, the method is high in work efficiency, is good in stability, is simple and visual in operation, and facilitates the subsequent analysis. The employed technical scheme of the invention is that the method comprises the steps: 1), obtaining the characteristic parameters of a switch reluctance machine; 2), building an inductance and torque nonlinear analysis expression through a mathematic fitting nonlinear analysis method, substituting the expression into a mathematic expression of the switch reluctance machine, and building an integrated mathematic model; 3), building an integrated ball screw nonlinear mathematic model; 4), building a control surface mathematic model equivalent to an elastic load; 5), enabling the mathematic models of the switch reluctance machine, a ball screw and a control surface load to be coupled mutually, forming a many-body dynamics mathematic model, and building a simulation model for the direct-drive electromechanical actuator system according to the mathematic model; 6), simulating and analyzing an operation result of the many-body dynamics mathematic model under various work conditions.

Description

technical field [0001] The invention belongs to the field of dynamic simulation analysis methods, and in particular relates to a multi-body dynamic simulation analysis method of an airborne direct-drive electromechanical actuator system. Background technique [0002] Electromechanical actuator, referred to as EMA, is a position servo control system, which controls the movement of the load through the operation of the control system and the motor, so as to achieve the position servo control effect of the control target. As a form of electric actuator, the electromechanical actuator has the advantages of small size, light weight, simple and reliable structure, and high safety. It overcomes the shortcomings of traditional hydraulic systems such as low safety and poor reliability, and is widely used in flight control surfaces. Control, aircraft braking and industrial process control and other fields. [0003] With the development of commercial software such as ADAMS, ANSYS, Sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 杜锦华杨可之
Owner XI AN JIAOTONG UNIV
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