In the early design stage,automotive modeling should both meet the requirements of aesthetics and engineering.Therefore,a vehicle CAD(computer aided design)model that can be easily adjusted by feedbacks is necessary.B...In the early design stage,automotive modeling should both meet the requirements of aesthetics and engineering.Therefore,a vehicle CAD(computer aided design)model that can be easily adjusted by feedbacks is necessary.Based on CE-Bezier surface,this paper presents a set of algorithms for parametric segmentation and fairing surface generation in a car model.This model is defined by a simplified automotive template and relevant control points,shape parameters and segmentation parameters,which can be modified to alter the car form efficiently.With this model and the corresponding adjustment method,more than fifty various vehicle models are established in this research according to different parameters.And two methods for calculating similarity index between car models are constructed,which are suitable for brand design trend analysis and modelling design decisionmaking.展开更多
基金This research was funded by the National Natural Science Foundation of China(Grant No.51875454)Shaanxi Province Education Department Humanities and Social Sciences Research Plan of China(18JK0538).
文摘In the early design stage,automotive modeling should both meet the requirements of aesthetics and engineering.Therefore,a vehicle CAD(computer aided design)model that can be easily adjusted by feedbacks is necessary.Based on CE-Bezier surface,this paper presents a set of algorithms for parametric segmentation and fairing surface generation in a car model.This model is defined by a simplified automotive template and relevant control points,shape parameters and segmentation parameters,which can be modified to alter the car form efficiently.With this model and the corresponding adjustment method,more than fifty various vehicle models are established in this research according to different parameters.And two methods for calculating similarity index between car models are constructed,which are suitable for brand design trend analysis and modelling design decisionmaking.
