High-speed rotating combustion test system for base bleed unit

A high-speed rotation and rotation test technology, which is applied in ammunition tests, offensive equipment, ammunition, etc., can solve problems such as eliminating static errors, insufficient interference suppression capabilities, and inability to meet the speed control accuracy requirements of the turntable system at all times, achieving wide versatility , high reliability, and high speed control accuracy

Inactive Publication Date: 2018-11-20
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of the speed control system generally adopts the traditional PI regulator, which has a relatively simple structure and high sensitivity, but it has obvious shortcomings in eliminating static errors and suppressing interference.
At the same time, with the violent combustion of the bottom row of powder and the consta

Method used

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  • High-speed rotating combustion test system for base bleed unit
  • High-speed rotating combustion test system for base bleed unit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example

[0021] The following takes the rotating combustion experiment of the bottom row device of a certain type of 130mm bottom row extended range bomb as an example to illustrate the working process of the system:

[0022] First, initialize the parameters. The high-speed motor drives the bottom row device to the starting speed, which is the speed at the moment of ignition, and is stable at this speed. When other systems are ready to be in place, prepare to ignite the bottom row device. When the ignition controller is igniting, it sends a pulse ignition command to the acquisition card and the single-chip computer. After the acquisition card receives the ignition command, the industrial computer starts to display and record various data information; the single-chip computer starts to control the bottom row device to change according to the set speed change rule. The speed information fed back by the speed sensor is processed by a fuzzy PI controller, and the single-chip m...

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Abstract

The invention discloses a high-speed rotating combustion test-bed measurement and control system for a base bleed unit. The high-speed rotating combustion test system comprises a high-speed rotating test-bed, a rotating speed measurement and control system, a data collection system and an ignition control system, wherein the high-speed rotating test-bed is connected with the rotating speed measurement and control system, the data collection system and the ignition control system; the rotating speed measurement and control system is used for measuring rotating speed of the base bleed unit on the high-speed rotating test-bed; the data collection system is used for collecting temperature, thrust and pressure of the base bleed unit; the ignition control system is used for igniting the base bleed unit. According to the system, ignition control can be performed on the base bleed unit, parameters such as temperature, pressure, thrust and the like of the base bleed unit are collected, displayed and recorded in real time, and closed-loop control is performed on the rotating speed of the base bleed unit. Almost the overall process of the base bleed combustion experiment is covered, and the system is suitable for multiple models of base bleed units; a rotating speed control method adopts fuzzy PI closed-loop control, and the control precision of the rotating speed is improved.

Description

technical field [0001] The invention belongs to the field of measurement and control of high-speed turntables, and in particular relates to a measurement and control system of a high-speed rotary test bench for bottom row devices. Background technique [0002] Bottom row extended range technology is an advanced technology that can greatly increase the range of shells. This technology extends the range of the shell by exhausting the bottom of the shell. Compared with other range-extending technologies, it has the advantages of high range-extending efficiency, short flight time and simple structure. The bottom row of devices performs passive high-speed rotational movement together with the shells. Therefore, it is particularly important to study the working performance (thrust, pressure, nozzle ablation, etc.) of the bottom row device under high-speed rotation. The high-speed rotary test bench of the bottom row device drives the bottom row device to rotate at high speed thro...

Claims

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Application Information

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IPC IPC(8): F42B35/00
Inventor 贾云飞郭一达余陵
Owner NANJING UNIV OF SCI & TECH
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