Controller Design of over-load System for Mobile Crane by Fuzzy Logic

• Main Authors: Po -Wei Chang, 張勃緯
• Other Authors: Jr-Syu Yang
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/49438802413150338573

碩士 === 淡江大學 === 機械工程學系 === 87 === Due to the rapid industrial development recently, the applications of truck cranes have been gradually increased.However,the degree of danger in applying these devices has also increase resulting from the expedite growth of the usage of the truck cranes.Therefore,the study in preventing over-loading has become urgent and important subject of truck cranes. The most important work of this research will emphasize on the Coupling problems between length,rise angle and rotation angle of the truck cranes in order to avoid dangerous situation caused by over-load.The over load dynamic equation is developed and applied into controller design,In the design processes,The controller(Fuzzy-Logic)is designed to solve the coupling problems.Another controller (Fuzzy-All) is studied and compared with the previous one (Fuzzy-Logic).The purpose of this research is to decrease the Fuzzy rules for the future application.The software package,Matlab,Simulink and Fuzzy Tool Box are applied to computer (PC).In the conclusion,The simulation result of Fuzzy-All controller is better than that of Fuzzy-logic controller. Finally,The Fuzzy-All controller and three proportional valves are used to the system experiments to avoid the over-load in a crane .