Research on Advance Control of Chaotic Vibration Mill with High Vibration Intensity - Base on PLC Experimental Analysis

2013 ◽  
Vol 655-657 ◽  
pp. 1465-1468 ◽  
Author(s):  
Xiao Lan Yang ◽  
Ji Feng Liu ◽  
Min Ping Jia ◽  
Jing Chao Zou ◽  
Fang Min Xv
Keyword(s):  
Control System ◽  
Experimental Analysis ◽  
Frequency Conversion ◽  
Key Technology ◽  
Vibration Intensity ◽  
Special Operations ◽  
Chaotic Vibration ◽  
Advanced Control ◽  
Control Decision ◽  
Vibration Mill

Some special operations of chaotic vibration mill require not only has a certain frequency high vibration intensity but also can effectively control overtime and over-limited of vibration intensity. The validity of advanced control decision is key technology for chaotic vibration mill to achieve some special operations such as super-hard and superfine grinding. Through the application based on the intelligent frequency conversion of PLC advanced control system, the high vibration intensity exceeds 15 presents discontinuously and the transient super-high vibration intensity exceeds 20 presents 3 times shortly. By comparing with conventional vibration mill, it shows that the advance control system can control high vibration intensity effectively, and the engineering effects of the deaggregation and refinement of super-hard and superfine grinding is obtained.

Research on Advance Control of Chaotic Vibration Machine with High Vibration Intensity (I) - Mechanical Properties and PLC Control Decision

2014 ◽  
Vol 610 ◽  
pp. 489-492
Author(s):  
Xiao Lan Yang ◽  
Ji Feng Liu ◽  
Han Song Yang ◽  
Bing Zhi Kong ◽  
Jia Wei Li ◽  
...  
Keyword(s):  
Extreme Points ◽  
Effective Control ◽  
Vibration Machine ◽  
Vibration Intensity ◽  
Chaotic Vibration ◽  
Plc Control ◽  
Advanced Control ◽  
Control Decision ◽  
Online Monitor ◽  
Vibration Mill

The effective control of high-vibration intensity frequency and its overtime and over-limited is a bottleneck technology of chaotic vibration machine to finish specific operation. A PLC advance control system based on intelligent frequency is developed. Prediction of the possible vibration intensity extreme points and its distribution are processed data mining and prediction by sensor signal amplification, analog-digital conversion, and online monitor. Moreover, advanced control of the overtime and over-limited vibration intensity is achieved by constraint conditions correction and real-time feedback. The advanced control results can be verified by comparing grinding effect of conventional vibration mill with that of advanced control vibration mill. Further, the deaggregation and refinement of super-hard and superfine grinding can be achieved.

Frequency Conversion Control for Vibration Mill with High Vibration Intensity Based on Multi-Wave Variable Sinusoid

2012 ◽  
Vol 538-541 ◽  
pp. 2504-2507
Author(s):  
Xiao Lan Yang ◽  
Min Ping Jia ◽  
Jing Chao Zou ◽  
Ji Feng Liu ◽  
Fang Min Xv
Keyword(s):  
Frequency Conversion ◽  
Digital Conversion ◽  
Vibration Machine ◽  
Key Technology ◽  
Vibration Intensity ◽  
Wave Variable ◽  
Action Time ◽  
On Line ◽  
Useful Life ◽  
Vibration Mill

The key technology of vibration machine to finish deaggregation and powder refinement is both high vibration Intensity with a certain frequency and steady vibration of frequency conversion control. A frequency conversion control for vibration mill system based on multi-wave variable sinusoidal frequency ascending and descending cycle curve was developed. The frequency conversion control test of vibration mill was finished through sensing signal amplification, analog digital conversion and on line detection. The results show that the high and super-high vibration intensity with certain action time is produced and the effect of multi-amplitude and multi-frequency is acquired. The experimental data show that the super micro grinding of superfine particles is achieved, energy consumption is reduced, the useful life of wearing parts such as bearing is extended, and engineering effects of deaggregation and refinement of super-hard superfine powder are obtained by frequency conversion control.

Advance Control Experiment of Vibration Machine with High Vibration Intensity Based on SCM – Dynamics Characteristics and Advanced Control

2014 ◽  
Vol 912-914 ◽  
pp. 554-558
Author(s):  
Xiao Lan Yang ◽  
Ji Feng Liu ◽  
Meng Nan Si ◽  
Jia Wei Li ◽  
Biao Huang
Keyword(s):  
Frequency Conversion ◽  
Frequency Converter ◽  
Vibration Exciter ◽  
Vibration Machine ◽  
Vibration Intensity ◽  
Strongly Nonlinear ◽  
Advanced Control ◽  
Vibration Stress ◽  
Double Mass ◽  
Intensity Characteristic

The vibration-stress field could be formed by high vibration intensity in vibration machine to improve the ability of the collision, shock, shear and extrusion for the system, and it also can avoid plugging screen for vibration screening machine, which could make for solving some special requirements of the vibration machine. To research the vibration machines strongly nonlinear and high vibration intensity characteristic such as certain excitation and uncertain response, the vibration machine with its double-mass is built, and its vibration exciter uses two partial blocks as vibration motor. In addition, dynamic vibration differential equation is established. To achieve high vibration intensity results based on the vibration machines safe working, the advanced control based on the SCM and Intelligent frequency conversion is put forward, and the advanced control system with its host computer, frequency converter, SCM, charge-amplifier, sensor and the vibration machine is been established.

Advance Control of Vibration Mill with High Vibration Intensity Based on SCM(III) – Simulation Debugging and Test Comparison Analysis

2013 ◽  
Vol 651 ◽  
pp. 779-783
Author(s):  
Xiao Lan Yang ◽  
Ji Feng Liu ◽  
Min Ping Jia ◽  
Jing Chao Zou ◽  
Zeng Wen Xiao ◽  
...  
Keyword(s):  
Control System ◽  
Grain Refinement ◽  
Comparison Analysis ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Vibration Intensity ◽  
Existing Problems ◽  
Vibration Mill ◽  
Hard Powder

An intelligent frequency advance control system based on Single-Chip-Microcomputer is developed. By simulation debugging of the system, existing problems is find, and the solutions to this problems are proposed so that improve the control system. Comparing with conventional vibration mill, the high vibration intensity(≥18) with certain frequency of the advance control system presents discontinuously, and super-high vibration intensity(≥20) presents several times. The result shows the advance control system can not only achieve the high vibration intensity with certain frequency, but also effectively control overrun and overtime of vibration intensity. The engineering effect of effective deaggregation and grain refinement in the super-hard powder superfine grinding is gained.

Research on Wireless Traffic Control System of Traffic Police Resources and Key Technology

ICTIS 2011 ◽  
2011 ◽  
Author(s):  
Qin Yong ◽  
Yuqiang Lv ◽  
Dong Honghui ◽  
Tang Kun ◽  
Nie Miao ◽  
...  
Keyword(s):  
Control System ◽  
Traffic Control ◽  
Key Technology ◽  
Traffic Police ◽  
Traffic Control System

An Expert Controller Based on Transient Response Patterns

2011 ◽  
Vol 219-220 ◽  
pp. 3-7
Author(s):  
Ning Zhang ◽  
Rong Hua Liu
Keyword(s):  
Control System ◽  
Transient Response ◽  
Closed Loop ◽  
Performance Criterion ◽  
Response Patterns ◽  
Loop Control ◽  
Expert Control ◽  
Closed Loop Control System ◽  
Loop Control System ◽  
Control Decision

An expert control system based on transient response patterns and expert system techniques is proposed in this paper. Depending on the features of the closed-loop control system determines the control decision and adjusts the parameters of the controller. The proposed method requires minimal proper information about the controlled plant and, with the linear re-excitation learning method, the system is kept satisfying the performance criterion.

Advanced Control System Considerations for Small Shaft-Type Aircraft Gas Turbines

1970 ◽  
Author(s):  
D. A. Prue ◽  
T. L. Soule
Keyword(s):  
Control System ◽  
Gas Turbines ◽  
Evaluation Criteria ◽  
Open Loop ◽  
Engine Control ◽  
Gas Generator ◽  
Engine Control System ◽  
Power Turbine ◽  
Advanced Control ◽  
Temperature Load

The next generation of free-turbine engines in the 2 to 5-lb/sec airflow class will undergo vast improvements in performance and efficiency. The improvements will be achieved concurrent with overall reductions in size and weight. Effort is required at optimization and miniaturization of the engine control system to keep pace with these improvements. This paper describes a conceptual design of an advanced engine control system for this class of engine. It provides gas generator and power turbine control with torque, temperature, load sharing and overspeed limiting functions. The control system was concepted to accommodate, with minimum hardware changes, such variants as regenerative cycle and/or variable power turbine geometry. In addition, considerations for closed and open loop modes of control and fluidic, electronic and hydromechanical technologies were studied to best meet a defined specification and a weighted set of evaluation criteria.

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