Parametric Design and Design Associability in 3D CAD

Abstract

The purpose of this research is to make design automation possible by parametric design and design associability in 3D CAD. Applications of the technology in liquid food packaging machinery and its advantages are presented in the paper. For regular shapes such as circles or lines, parameters are used to link the dimensions of relative parts while for irregular shapes such as curves, associability is used to do the job in an assembly. Commercial 3D CAD software and Microsoft Excel software were used for the application. It is proved that same merit applies to designs of other machineries, on reducing design time and design mistake, enhancing consistency and easy documentation， therefore liberating designers from redundant day-to-day routine computer-paperwork to make more innovative contributions to their job. The impact of the design-automation technology on machine design is great.

Digital Prototyping on the Example of Selected Self-Propelled Mining Machines

“…Typical CAD programmes, such as Catia, NX, Creo, Inventor, support design work, including parametric design. CAD programs often have CAE elements and allow for conducting load analyses and strength analyses (Zhang, 2005), (Wang et al, 2008). CAx programs are powerful tools with huge possibilities.…”

Computer-Aided Support for the Rapid Creation of Parametric Models of Milling Units for Longwall Shearers

“…The creation of a parametrised automatic generator of cutting drums enables a quick obtaining of a conceptual model necessary at the stage of collision analysis or presentation of the solution to the contractor, as well as a detailed composition, which together with the related technical documentation constitutes a complete design to be implemented. The subject of parametric design with the use of various test programs is known and widely used in mechanical engineering, however, until now iLogic has not been used and cutting drums have not been parameterized [13,14]. An important issue at the stage of selecting and designing the units is the load generated by the milling process and the demand for power.…”