Coupling Leveling Control Based on Fuzzy PID for Synchronous Loading System of Load-Bearing Test Bed  

作　　者：ZUO Duquan QIAN Lixia YANG Tianen CUI Xiaojin LUO Qiang 

机构地区：[1]College of Mechanical Engineering, Chongqing Three Gorges University [2]School of Manufacturing Science and Engineering, Sichuan University

出　　处：《Chinese Journal of Electronics》2017年第6期1206-1212,共7页电子学报（英文版）

基　　金：supported by the Scientific and Technological Research Program of Chongqing Municipal Education Commission(No.0983503);the Research Project of Bate(Hangzhou)Industrial Machinery Co.,Ltd.of China(No.0983501)

摘　　要：This paper describes a 4-cylinder hydraulic circuit system controlled by a new cross-coupled fuzzy PID,and its leveling algorithm is designed to meet the demand of the loading system for test bed. In order to enable synchronous loading and implement precise leveling control,the output displacement derived from a theoretical model,called˙Zn, is tracked in real-time. Using AMEsim software,the reliability of the scheme designed by master-slave control and fuzzy PID cross coupling control have been confirmed, and have drawn a conclusion that the more serious the inconsistencies of the load for 4-cylinder are, the more size corresponding synchronization errors will be. Further,leveling experiments have demonstrated that the synchronization performance of leveling system can be improved significantly by adjusting the load values for the 4-cylinder so as to meet the demand of its un-synchronization.This paper describes a 4-cylinder hydraulic circuit system controlled by a new cross-coupled fuzzy PID,and its leveling algorithm is designed to meet the demand of the loading system for test bed. In order to enable synchronous loading and implement precise leveling control,the output displacement derived from a theoretical model,called˙Zn, is tracked in real-time. Using AMEsim software,the reliability of the scheme designed by master-slave control and fuzzy PID cross coupling control have been confirmed, and have drawn a conclusion that the more serious the inconsistencies of the load for 4-cylinder are, the more size corresponding synchronization errors will be. Further,leveling experiments have demonstrated that the synchronization performance of leveling system can be improved significantly by adjusting the load values for the 4-cylinder so as to meet the demand of its un-synchronization.

关 键 词：Load-bearing test bed Solenoid valve Fuzzy PID Loading system LEVELLING 

分 类 号：TH137[机械工程—机械制造及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]