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High-precision anti-interference control method for an unbalanced gun barrel

A control method and unbalanced technology, applied in electric controllers, controllers with specific characteristics, etc., can solve problems such as insufficient system control accuracy and unsatisfactory system interference suppression, so as to improve system control accuracy and strong suppression ability Effect

Pending Publication Date: 2021-08-10
XIAN TECHNOLOGICAL UNIV
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Problems solved by technology

[0004] The present invention provides a high-precision anti-disturbance control method for an unbalanced gun barrel to solve the problems in the prior art that the system interference suppression is not ideal and the system control accuracy is not high enough

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  • High-precision anti-interference control method for an unbalanced gun barrel
  • High-precision anti-interference control method for an unbalanced gun barrel
  • High-precision anti-interference control method for an unbalanced gun barrel

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Embodiment Construction

[0039] A kind of unbalanced gun barrel high-precision anti-disturbance position control method based on ADRC-PID cascade control of the present invention The specific implementation steps are as follows:

[0040] The first step is to analyze the structure and working principle of the unbalanced barrel pitching system, and establish a mathematical model of the unbalanced barrel pitching electro-hydraulic servo system considering the influence of actual combat road conditions:

[0041] Let θ 1 and θ 20 are respectively the angle that the gun barrel rotates around its axis of rotation relative to the carrier and the angle that the carrier rotates around the axis of rotation relative to the inertial space, then the angle that the barrel rotates around the axis of rotation relative to the inertial space is:

[0042] θ=θ1 +θ 20

[0043] Furthermore, the torque balance equation between the hydraulic cylinder and the load with θ as the output can be obtained:

[0044]

[0045] ...

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Abstract

The invention relates to a high-precision anti-interference control method for an unbalanced gun barrel. The problems that in the prior art, system interference suppression is not ideal enough, and system control precision is not high enough are solved. According to the technical scheme, the method comprises the steps that firstly, the composition structure and the working principle of an unbalanced gun barrel pitching system under the actual combat working condition are analyzed, and an unbalanced gun barrel pitching electro-hydraulic servo system mathematical model considering the road condition influence is established; secondly, a correction link and a pressure difference negative feedback loop are adopted to restrain the influence of pavement grade change and unbalanced torque on the control performance of the gun barrel pitching system; and finally, the step input instruction signal U1 and the random road surface fluctuation signal theta2 are used as an input item and an external interference item respectively, parameter setting of the ADRC-PID cascade controller is adjusted, and analysis and calculation of system control characteristics during gun barrel turning and stable operation under the dynamic working condition are carried out.

Description

technical field [0001] The invention relates to the technical field of pitch position servo control of a vehicle-mounted unbalanced gun barrel, in particular to a high-precision anti-disturbance control method for an unbalanced gun barrel. Background technique [0002] The high-precision control of the unbalanced barrel pitch system is crucial to the firing accuracy of artillery weapons. However, bad road conditions induce the tank vehicle carrier to bump up and down, and the control performance of the gun barrel pitch system installed on the carrier deteriorates; in addition, internal and external disturbance factors such as unbalanced gravity moment and ambient temperature will affect the control accuracy of the gun control system. Therefore, the suppression of the disturbance of the barrel system under actual combat conditions can be carried out to achieve high-precision control, which can effectively improve the shooting accuracy of tank weapons. [0003] In order to me...

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Application Information

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IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 褚渊博宋玉贵马卫红张颖
Owner XIAN TECHNOLOGICAL UNIV
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