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Attitude leveling control method for vertical launch platform based on twelve-point supports

A technology of vertical launch and launch platform, applied in the direction of control using feedback, it can solve the problems of strong electromagnetic interference, complex control, and excessive static indetermination, and achieve the effect of weakening strong coupling, ensuring high precision requirements and smooth implementation.

Inactive Publication Date: 2019-03-05
NANJING UNIV OF SCI & TECH
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Problems solved by technology

The advantage of 3-point support is that the control method is simple and there is no over-constraint problem, but the stiffness and anti-overturning ability are relatively poor
4-point, 6-point and more support points have good rigidity and strong anti-overturning ability, but there are problems of super static indetermination and complex control
However, when the electromechanical automatic leveling system is working, there are problems such as strong electromagnetic interference and insufficient memory of the controller. These problems have a great impact on the leveling accuracy of the system and the stability of the leveling process platform. The key to the research of automatic leveling system

Method used

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  • Attitude leveling control method for vertical launch platform based on twelve-point supports
  • Attitude leveling control method for vertical launch platform based on twelve-point supports
  • Attitude leveling control method for vertical launch platform based on twelve-point supports

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Embodiment Construction

[0055] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0056] combine Figure 1 to Figure 3 as well as Figure 24 and Figure 25 , a method for controlling attitude leveling of a vertical launch platform based on twelve points of support, comprising the following steps:

[0057] Step 1, establish the mathematical model of the attitude leveling system of the vertical launch platform supported by twelve points, as follows:

[0058] Set OX 0 Y 0 Z 0 is the horizontal coordinate system, keep still, OX 1 Y 1 Z 1 is a non-horizontal coordinate system, by the horizontal coordinate system OX 0 Y 0 Z 0 After a series of rotations, the schematic diagram of the rotation change is as follows figure 1 shown. It is stipulated here that the rotation angle direction satisfies the right-hand spiral rule, that is, the thumb points to the positive direction of the rotation axis, and the bending direction of the four fi...

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Abstract

The invention discloses a twelve-point support based vertical launching platform attitude leveling control method. The method comprises the steps of firstly building a mathematical model of a twelve-point supported vertical launching platform attitude leveling system, adjusting the position through a position error control based attitude leveling method, adjusting the angle through an angle error control based attitude leveling method, and finally carrying out joint simulation on the vertical launching platform attitude leveling system. According to the invention, a control algorithm applicable to twelve-point leveling is explored on the basis of four-point leveling. The algorithm adopts an idea of block leveling and converts complex multi-point leveling into three-point or four-point leveling which is easy to implement, ideal simulation effects in both leveling precision and leveling time are acquired, and excellent servo control performance of a launching platform is ensured.

Description

technical field [0001] The invention belongs to the technical field of electro-hydraulic servo control, in particular to a control method for attitude leveling of a vertical launch platform based on twelve points of support. Background technique [0002] Leveling devices play an important role in military weapons and equipment. For example, land-based mobile radars and missile launch vehicles are required to be erected after arriving at the predetermined combat position to obtain an accurate horizontal benchmark, and withdraw from the position after the combat mission is over. [0003] At present, the systems that realize automatic leveling mostly use 3-point, 4-point, and 6-point support methods, and there are special multi-point types such as 8, 10, and 12 (four leveling legs + eight auxiliary legs) leg platforms. The advantage of the 3-point support is that the control method is simple and there is no over-constraint problem, but the stiffness and anti-overturning ability...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 胡健仇杨李玉顺朱忠领王元刚
Owner NANJING UNIV OF SCI & TECH
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