Efficient Design Method Based on Evaluation Using CAE System

Abstract

In design processes, a product shape is defined on a CAD system, and design analysis and evaluation are performed on a CAE system. When modification of the design shape is required as a result of design evaluation, the design shape is modified using the CAD system and the analysis and evaluation processes using the CAE system are repeated. In the analysis of a design shape with the CAE system, mesh data is generated using the form data constructed by the CAD system. Whenever design shape is to be modified using the CAD system, mesh data must be regenerated. The quality of mesh data greatly influences analysis accuracy, and high quality mesh data requires considerable time and cost to generate. The purpose of the study is to propose a novel digital engineering method for design evaluation using a CAE system and to confirm the effectiveness of the method. The proposed method enables designers to modify designs using mesh data and to automatically transform the mesh data to the CAD data, to minimize the cost and time for regenerating mesh data after design modification. A basic system was also developed to confirm the usefulness of the proposed method.

Structure-altering feature-based triangle mesh model editing for primitive-based engineering parts

“…However, these studies either have very limited editing capability (small movements only) (Date and Onosato 2008;Xian et al 2009;Sawai and Aoyama 2010) or can only preserve the features and their constraints visually (Masuda, Yoshioka, and Furukawa 2007;He et al 2011;Tang and Hui 2013). The features are represented only closely but not accurately.…”

An Iterative Topology Optimization Algorithm That Considers Randomness in Design Parameters

“…In practice, engineers are more familiar with the operation of CAE-based software than the theory behind it. For example, Sawai and Aoyama (16) propose a digital engineering method for design evaluation using a CAE system (SolidWorks). The proposed algorithm of this study is amenable to implementation with existing DTO and reliability analysis software.…”