基于感性意象的概念汽车车身造型评价研究

Evaluation Study on Conceptual Vehicle Styling Design Based on Perceptual Image

目的为了减小汽车造型设计过程中对抽象感性意象的主观描述误差,提出一种主客观相结合的科学造型评价方法。方法以层次分析法(Analytic Hierarchy Process)和熵权法(Entropy Weight Method)相结合的汽车造型评价方法,通过感性语义空间的建立,将抽象的语义描述定量化,建立汽车造型意象评价体系,对所建立的判断矩阵进行一致性检验,获得各层次评价指标的主观权重,利用熵权法计算各评价指标的信息熵,进而求得各评价指标的客观权重,通过拉格朗日乘子法优化得到组合权重,将其运用到车身造型设计评价中以确定最终设计方案。结论该方法以4种概念轿车车身初步造型方案为评价对象,筛选出最优设计方案,评价结果同时反映汽车造型主观评价与客观评价,提升了权重的准确性与科学性,为后续汽车造型设计方向提供可靠参考。

The work aims to put forward a scientific styling evaluation method combining subjectivity and objectivity,so as to reduce the error of subjective description of abstract perceptual image in the process of vehicle styling design.With the vehicle styling evaluation method combining Analytic Hierarchy Process and Entropy Weight Method,the abstract semantic description was quantified through the establishment of perceptual semantic space.The evaluation system of vehicle styling image was established,and the consistency of the established judgment matrix was tested to obtain the subjective weight of evaluation index at each level.The Entropy Weight Method was used to calculate the information entropy of each evaluation index,and then the objective weight of each evaluation index was obtained.The combination weight was optimized by Lagrange multiplier method and applied to the evaluation of vehicle styling design to determine the final scheme.The method takes four preliminary styling schemes of conceptual vehicle as the evaluation object,and selects the best design scheme.The evaluation results reflect both subjective evaluation and objective evaluation of vehicle styling,which improves the accuracy and scientificity of the weight and provides reliable reference for the subsequent vehicle styling design direction.