PDE-based surface reconstruction in automotive styling design

Abstract

Surface reconstruction is an important part in automotive styling design. Existing reconstruction methods mainly rely on the proficiency of digital modelers who manually modify the surface shape to approximate the scanned data. Apart from manual modifications, the reconstructed surfaces cannot well reflect the design intent of designers since the feature curves of clay models have not been preserved accurately. In this paper, we propose a partial differential equation (PDE) based surface reconstruction method to analytically generate optimal surfaces with Cn continuity under the constraint of the feature curves. The proposed method accurately preserves automotive feature curves and achieves automatic reconstruction of Class-A surfaces without time-consuming manual work. The effectiveness of the proposed method is demonstrated by a number of experiments that reconstruct main parts of automotive exteriors.

Surface form inspection with contact coordinate measurement: a review

“…The method consists of dividing a given point cloud into several subsets, parameterizing these points, and fitting a PDE patch to the parametric points in each subset to reconstruct the three-dimensional shape. Wang et al [161] proposed a surface reconstruction method based on PDE, which analyzes and generates the optimal surface with Cn continuity under the constraint of characteristic curve.…”

Coral-Inspired Asymmetrically Porous Radiative Cooling Biofilm with Thermoplastic Polyurethane-Enhanced Mechanical Tolerance as Building Energy-Saving Envelope

“…For instance, the design of buildings emphasizes space utilization, while cars are designed with sharp edges to exude a sporty style and a sense of power. 34 In order to function as an envelope for buildings and cars, the PRC film needs to be flexible and exhibit excellent mechanical properties to fix more tightly on complex surfaces as well as to enhance tear resistance under high-intensity usage, while effectively avoiding the degradation of optical properties caused by structural collapse due to excessive deformation. 35−38 In this work, a tenacious cellulose acetate/thermoplastic polyurethanes (CA/TPU) polymer cross-linked network was successfully constructed by introducing elastomer TPU through a facile polymer blending method.…”

“…From an aesthetic perspective, designers often intricately design the exterior of buildings and vehicles to convey specific design concepts. For instance, the design of buildings emphasizes space utilization, while cars are designed with sharp edges to exude a sporty style and a sense of power . In order to function as an envelope for buildings and cars, the PRC film needs to be flexible and exhibit excellent mechanical properties to fix more tightly on complex surfaces as well as to enhance tear resistance under high-intensity usage, while effectively avoiding the degradation of optical properties caused by structural collapse due to excessive deformation. − …”