Parametric Design And Detection Of Web-Based Virtual Disassembly About Axis

This paper studies the parameter design and collision detection of web-based virtual assembly through VRML, JavaScript and ASP according to the character of web. It realizes the virtual design platform to be unconcerned, and offers the intelligent guidance. Student may work out theory that it goes to for study. So is can make students study theoretical knowledge vividly and lively,. Therefore this program has very high practical value and also has great breakthrough for reinforced mechanical basic education, and meaning is profound.This paper is taking shafting parts as example, has realized in the foundation of element parameter to melt to design the function that carries out fictitious assembly and intellective detection. It has discussed the crucial technologies such as establishment of element model; It realizes parameter to melt to design through the interaction of VRML and outside data, the database management modular of parameter, the option of intellective detection scheme, optimization and the realization of fictitious assembly and so on.It has studied using PROTO to establishe element model, regarded modelling design variable as interface variable and built mould scheme through installing interface variable value, so it gets the model scheme of object oriented. JavaScript develops interactive function of VRML, pass through script programming interface, thus is built-in element model file with the JavaScriptScript way of ScriptNode so as to realize the complex interaction of site scene as well as the communication with external data, so realizes the drive for element parameter. Based on Web the design parameter management modular of database adopts ASP and ADO visitng database technology, has realized the access of design data and the transmission of information flow between webpages.It has forward in regarding the parameter of element as reference element and compares law with parameter to carry out static interference detection while designing and carries out interference detection for element when it is fictitious to assemble. Eelement fictitious assembly is realized by defining a kind of fictitious assembly way model based on VRMLand applys relative location law to go on for...