Análise da modelagem paramétrica baseada em Features Com Siemens Nx 11

Abstract

This study investigates the application of feature-based parametric modeling using the Siemens NX 11 software, contextualizing the evolution of Computer-Aided Design (CAD) from 2D representations to 3D solid modeling and the emergence of the parametric approach as an essential tool for capturing design intent. Fundamental concepts of parametric modeling, such as parameters, constraints, history tree, and dependency relationships, are presented and contrasted with direct modeling. Siemens NX 11 is highlighted as a robust platform for this methodology. The objective was to verify the feasibility and practical application of the method through the modeling and parameterization of three mechanical assemblies – a bench vise, a crank, and a single-cylinder engine – focusing on proportional geometry updates based on key dimensions. The adopted methodology confirmed that changes in relevant dimensions propagated consistently through the models, validating the capability of parametric modeling in Siemens NX 11 to create flexible, adaptable designs and manage modifications efficiently, demonstrating advantages over direct modeling in maintaining design intent and automating changes. The work concludes on the effectiveness of the methodology and the importance of planning for the robustness of parametric models.