A Study of Applying Systematic Methods on The Computer-Aided Automobile Shape Constructions and Simulaions

• Main Authors: Lee, Lih-Chyun, 李立群
• Other Authors: Shih-Wen Hsiao
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/31010103347098773180

碩士 === 國立成功大學 === 工業設計學系 === 84 === A systematic method of integrating CAD and CAE techniques tto automotive shape design is addressed in this article. In this method, the design procedure is divided into three stages, including the concept development, 3D configurations construction and aerodynamics analysis.In the first stage, several reference shapes are searched from a consultative image database built in this study by inputting image word(s). Based on these referentialshapes, the design concept is to be developed. After tthe design ideas are obtained, the process enters the second stage, in which the 3D automobile models are constructed with Beta-Splines by using the program constructed in this study. The 3D configurations can be modified by regulating shape parameters(bias β1,and tension β2). After completing the 3D shape models, the third stage is entered. In this stage, the aerodynamic characteristics of the constructed configurations are analyzed with the CAE package named PHOENICS which was developed by CHAM company.The analyzed results are then used to suggest the designer whether the configurations should be modifiedor not. In this manner, a product with good appearence and high performance can be obtained.The procedure of this systematic method can also be used to develop other products such as an oven to promote design efficiency.