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Hydraulic static force loading test control method

A technology of static loading and control methods, applied in the field of control, to achieve the effects of ensuring safety, easy implementation, and improving work efficiency

Active Publication Date: 2016-06-29
TIANJIN AEROSPACE RELIA TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the traditional mode switching, the mode switching involved in static loading has not only the change of control parameters, but also the change of control feedback physical quantity, so the mode switching principle of fading in and fading out is not suitable for the experiment of static loading mode switching Require

Method used

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Examples

Experimental program
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Embodiment Construction

[0017] A hydraulic static loading test control method according to the present invention comprises the following steps:

[0018] Step 1: Check whether the oil circuit and circuit are normal, and ensure that the control mode is displacement control;

[0019] Step 2: Start the oil source pressure, set the displacement control command as the feedback value of the current displacement, and ensure that the hydraulic cylinder does not move at the original position through closed-loop control;

[0020] Step 3: Use the displacement control method to control the movement of the hydraulic cylinder until the force sensor has a signal output, and when the feedback force closed-loop control can be formed, switch to the force control mode (including manual or automatic switching when the setting meets the conditions), and the switching strategy is the force control command It is equal to the force feedback signal at the switching moment, and the control value u is calculated by the force er...

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Abstract

The invention belongs to the control method field, and specifically relates to a hydraulic static force loading test control method. The invention provides a hydraulic static force loading test control method. During the static force loading test process, manual and automatic switching of the corresponding control mode can be performed according to the specific situation; and switching between two control modes: the force control mode and the position control mode, is safe and reliable and is easy for implementation; and the impact response of a hydraulic cylinder during the process of switching the different control modes can be controlled, so that the work efficiency is improved.

Description

technical field [0001] The technology belongs to the field of control methods, and in particular relates to a hydraulic static loading test control method. Background technique [0002] Structural static test is a practical engineering discipline that uses experimental methods to observe and study the strength, stiffness, stability, and distribution of stress and deformation of structures or components under static loads. It is used to determine the stress distribution, bearing capacity and stability of structural parts under a certain load, so as to check whether the structural parts meet the design requirements. At the same time, it can test the current verification theoretical analysis and numerical calculation to improve the reliability of the calculation model. properties, or propose new theories and computational methods. Static loading tests are widely used in national defense, military, aerospace and many other fields. Static tests must be carried out during the des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
Inventor 张静侯京锋王家乐郝岩研窦雪川
Owner TIANJIN AEROSPACE RELIA TECH
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