工业设计英文论文

Computer-Aided Design 40 (2008) 812–827

/locate/cad

Reverse innovative design — an integrated product design methodology

XiuziYe a,b,.

, Hongzheng Liu a, Lei Chena, Zhiyang Chenc, XiangPanc, Sanyuan Zhanga

a Collegeof Computer Science/StateKeyLabof CAD&CG, Zhejiang University, 310027 Hangzhou,PR China

bSolidWorks Corporation, 300 BakerAvenue, Concord,MA 01742, USA

cCollegeof Software Engineering, Zhejiang UniversityofTechnology, 310014, Hangzhou,PR China Received24 August 2006; accepted7July 2007

Abstract

Today’sproductdesignerisbeingaskedtodevelophighquality,innovativeproductsatanever increasingpace.Tomeetthisneed,an intensive

search is underway for advanced design methodologies that facilitate the acquisition of design knowledge and creative ideas for later reuse.

Additionally, designers are embracing a wide range of 3D digital design applications, such as 3D digitization, 3D CAD and CAID, reverse

engineering(RE),CAEanalysisandrapid prototyping(RP).Inthispaper,we proposeareverse engineeringinnovativedesign methodologycalled

Reverse Innovative Design (RID). The RID methodologyfacilitates design and knowledge reuse by leveraging 3D digital design applications. The

core of our RID methodology is the definition and construction of feature-based parametric solid models from scanned data. The solid model

is constructed with feature datato allow for design modification and iteration. Sucha constructionis well suited fordownstream analysis and

rapid prototyping. In this paper, we will review the commercial availability and technological developments of some relevant 3D digital design

applications.We will then introduce threeRE modelling strategies: an autosurfacingstrategy for organic shapes;a solid modelling strategy with

feature recognition and surface fitting for analytical models; and a curve-based modelling strategy for accurate reverse modelling. Freeform

shapes are appearing with more frequency i n product development. Since their “natural” parameters are hard to define and extract, we propose

constructionofafeatureskeleton based upon industrialorregional standardsorby user interaction. Globaland local product definition parameters

are then linkedtothe featureskeleton. Design modificationis performedby solvingaconstrained optimization problem.ARID platformhas been

developedandthe mainRE strategiesand core algorithmshave been integrated into SolidWorksasan add-in product called ScanTo3D.We will

use this system to demonstrate our RID methodology on a collection of innovative consumer product design examples.

c

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2008 Elsevier Ltd. All rights reserved.

Keywords:3D CAD; CAID; Reverse engineering; Product design methodology; Reverse innovativedesign; Feature-based modelling;Parametric modelling; Product

definition parameters; Local shape deformation

1.

Introduction

Design is a purposeful process involving creative thinking

and problem solving. Designandknowledgehaveavery strong

association: recollection and application of knowledge can be

considered as a straightforward and practical design process

[1–3]. Emerging new techniques, devices and the globalization

of the product market are pushing creativity to its limit.

Today’s market is ch aracterized byfaster time-to-market, and

greater demands for fresh and distinctive products. Facing

intense market challenges, advanced design methodologies

are being actively sought to reduce the time required for

.

Corresponding author at: SolidWorks Corporation, 300 Baker Avenue,

Concord,MA 01742, USA.Tel.:+1 978 371 5044;fax:+1 978 318 5259.

E-mail addresses: yxz@, xiuzi@ (X.Ye).

knowledge acquisition in design activities, and to leverage

creativity.

It is estimated that designers spend about 60% of their

time searching for information. This process is rated as the

most frustrating aspect of an engineer’s design activities*4+.

It is also conservatively estimated that more than 75%

of engineering design activity comprises case-based design

—reuse of previous design knowledge to address a new

design problem[4].However,physical models and associated