Cam Motion Equations in Automobile Styling Design System

• Main Authors: Jia-Wei Zhan, 詹佳尉
• Other Authors: Meng-Dar Shieh
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/80713160376282397804

碩士 === 國立成功大學 === 工業設計學系碩博士班 === 91 === The goal of this research is to develop an automobile styling design system, which uses the characteristic of cam motion equations in mechanisms, to help industrial designers in concept development stages. Mechanisms in mechanical engineering have been studied for a long time. However, how to make some innovative ideas using the ancient technology and knowledge becomes a challenge for researchers. The papers related to the automobile styling design using cam motion equations have not been discovered in the field of mechanical design or industrial design. This creative idea might arouse the curiosity for those who are interested in automobile styling design or consumer product styling design. One of the distinguish features of this work is that the contour of an automobile can be represented by the cam motion equations using small amount of control points, for instance, 21 control points in the demonstration examples. Furthermore, the reverse engineering process is performed to scan several automobile replicas using 3D scanner to retrieve the control points from the scanned data. The set of the control points is input into the simulation system to redesign the contour of the automobile model. Designers can modify the shape of the model by altering the positions of the control points. The second distinguish feature of this work is that the position, velocity and acceleration of cam motion equations are composed to make a new contour of the model more smoothly. Besides, the morphing between two automobile models is performed by blending two sets of control points linearly. The characteristics of both automobile models can be preserved and more styling models can be generated to inspire designers in the concept design stage. This is the first paper to discuss the possibility of using the cam motion equations in automobile styling design, which not only help designers in preliminary design stage effectively, but also improve the quality in the automobile styling design. This simulation system is programmed using OpenGL application programming interface, which provides a user-friendly visual environment. The obtained results can be exported to another commercialized CAD system using IBL format to create a 3D automobile model in rendered form. Nevertheless, the simulation system not only can be used for automobile design but also can be used for other commercial product design. The contribution of this work can be utilized in the future for both mechanical design and industrial design research fields.