Infection Element Analyse On Gantry Crane Gnawed Rail Based On Virtual Prototype

Gnawed rail, the contacting abrasion generated between wheel flange and slide flangeof track in the process of gantry crane walking, is one of the three sufferings in the usingprocess of gantry crane, which affects the natural and safe operation of crane. As gantrycrane becomes more widely used in various industries, it is significant to study the reason ofgnawed rail phenomenon and how to prevent and offset it.The main contents of research include:1. The three Dimension model and dynamic model of automatic track crane RMGwere established by using Pro/E and ADAMS. FEM of RMG was obtained by using finiteelement software Altai Hypermesh and ABAQUS. MNF which is needed for ADAMS/Flexflexible analysis was calculated and locomotion character of mechanical system was gainedthrough firm and flexible coupling analysis of RMG using ADAMS.2. According to the dynamic theory of crane, the dynamic model of walking machineof automatic track crane was established. External boundary conditions inducing gnawedrail were confirmed. Mechanical response of different tread wheels under load wereanalyzed. Basic principles of automatically go straight effect when they are in the walkingprocess was found.3. Combining the FEA AND MSS in ADAMS/Flex to analyze the main modalcharacter and modal superposition character of bridge system, the affectness of level andvertical stiffness on gnawed rail in the walking process was researched, and particalstructural was optimized.4. In ADAMS/Insight, complex experiment was designed to evalute the impactingcharacter of factor variables of gnawed rail on objective functions under certain boundaryconditions. Impacting extent of variables was obtained through the sensitivity analysis,which makes it better to analyze the experimental results, distinguish between key variablesand non-critical variables.This thesis studied the impacting factors of gnawed rail phenomonen of gantary cranebased on virtual prototyping technology and provides technical and academic supports forsolving the phenomenon.