The Visualization CAD System Research And Development Of Tower Crane

Tower crane is widely used in industrial and civil construction, transportation,power and water conservancy construction and shipbuilding engineering, the operatingmechanism of tower crane’equipments include lifting mechanism, luffingmechanism,swing mechanism and crane travel mechanism (except fixed tower crane)and so on to complete the whole process of hoisting working,it means heavy loads waslifted and transported to the designated place and installed in right place.The design processes of tower crane and software was studied, the CAD systemstructure of tower crane was analyzed, the user interactions and interface structure wasdetermined, tower crane’s CAD system organic combined a modular design withobject-oriented program design, the function modules of the tower crane wasconstructed based on the modular design with Visual C++as the main developmenttools, it made the function module cohesion degrees more, coupling smaller.Code reuse and convenience expand were implemented owing to theencapsulation and inheritance and polymorphism of object-oriented program design,abstract thinking of design personnel was easier, readability of the code and reusabilitywere improved, the the function module interface was construsted by object-orientedprogram design, tower crane function module by installing packaging data in the objectand methods to represent properties and the realize action, and to make the design andcalculate of the tower crane more programming, more standardized.In the process of tower crane design’s large and attribute data, performancecharacteristics need optimization, and the parameters of the tower crane’s design and calculate is random and uncertainty, using the mixing programming between MATLABand Visual C++to construct the parameters optimization module of tower crane, it issimilar to the excellent calculation Matlab,the backstage calls MATLAB optimaltoolbox to solve by using Visual C++to create optimized interface,so the optimizationdesign project is more scientific and reasonable and accord with the objective reality;theseamless integration of Application application program ADO established and Accessdatabase, the data’s rational flow and transfer interaction were realized, the operationbehavior was realized by using structured query language SQL and driving mechanismof news, the data reuse was realize and redundancy was reduced to get the accurate andreliable results.