概念包装设计的创意思维解析

目的对概念包装设计的创意思维有效应用进行分析。方法以创意思维为切入点,运用案例对概念包装设计的创意思维特征以及表达进行剖析,阐明了创意思维在概念包装设计过程中的核心地位。结论引导设计师在有效思维模式下进行概念包装设计。     

基于多维可拓感性工学的木制民居创新设计

目的研究木质民居设计过程中的多维感性知识表征及思维收敛问题,提出基于多维可拓感性工学的木制民居创新设计。方法首先,将木质民居多维度设计知识进行可拓形式化表征。其次,运用发散树法构建设计概念生长阶段模型进行思维发散。再次,对设计概念集初步收敛,并用模糊综合评价法对产品功能性进行评估。最后,解构木质民居多维度设计特征并量化处理,构建感性意象认知矩阵,建立映射函数后带入SPSS软件评估概念方案是否符合设计意象,增加设计成功率。结论以黔东南木制民居构件库为例,验证该方法可行,但仍需进一步完善设计方法理论体系。     

面向设计过程的情境建模与研究

目的 解决产品设计过程中知识获取不完善及设计过程表征不能满足用户需求的问题。方法 针对设计过程,从知识获取、知识物化和特征验证等方面,剖析用户知识在设计过程情境中的行为逻辑,提出一种面向设计过程的情境建模方法。基于可拓基元概念,知识获取情境将用户信息转化为需求基元;知识物化情境将需求基元与设计思维进行融合,形成概念方案。结果 利用验证情境模型判断特征元素是否满足设计需求,从而使产品设计方案达到效能的最大化。结论 基于物流分拣设备设计过程的研究,对设计情境模型进行实例验证,其产品的特征得到了高效的表达,完善了产品设计的方案,验证了该方案的可行性。     

设计意识融入组织飞利浦的设计管理

本由飞利浦设计公司的首席执行官和首席创意总监Stefano Marzano撰写，讲述飞利浦的设计管理之道他提出“高级设计”的概念所谓“高级设计”是指一种设计哲学，它强调的是满足真正需要和拥有永恒价值的产品创新。多学科领域相交互的工作方法利用了技术，但这种利用本着伦理和人性化的特点它既是一条在设计上通往创新领域的道路．又是整个飞利浦的一种从开发电子消费品到制造复杂医疗设备所必备的清晰思维模式。本同时还将介绍飞利浦的两组概念设计。     

基于视觉和语义特征的汽车品牌造型设计线索

目的研究在汽车品牌多个属性中,哪些属性对于汽车品牌识别与品牌形象起主导作用。方法以工业产品发展规律为背景,提出设计线索的概念;从视觉特征和语义特征的角度,分析了设计线索的分类,论述了设计线索对于品牌识别的作用;以某汽车品牌为对象,构建了品牌设计线索体系,观察了该体系在面向设计时的应用。结论设计线索对于品牌识别与品牌构建有着重要意义。     

网络时代的个性化设计思维探讨

结合日常生活中的各种生活形态,首先分析了网络时代的现状;进而从消费层次、消费方式、消费物品以及消费理念等方面,探讨了网络时代消费者的消费特征,得出了其特有的个性化需求;最后从设计思维的角度出发,围绕网络时代的个性化需求特征,提出了从题材、形态入手创造新产品,从而体现个性化的设计思维,以满足网络时代消费者的个性化需求。     

基于荷特征的概念车仿生设计研究

目的荷在开花与结果的生长过程中,呈现出不同的特征,挖掘各个生长阶段的特征,使其应用在概念车创新性设计中,为概念车仿生设计开辟新思维。方法利用仿生设计原理,从形态仿生、功能仿生、结构仿生、色彩仿生四方面,对荷与荷之关联的荷花、荷叶、藕进行形态、功能、结构、色彩的特征分析,让荷花、荷叶、藕的特征与概念车各部位的设计进行对比、分析与糅合。结论对荷的仿生特征进行分析,让其合理运用于概念车的形态、功能、结构、色彩创新设计中,提出了以荷特征为基础的概念车仿生设计方法,为创造出更具有自然特征的概念车提供了途径,为完善概念车仿生设计方法提供了思路。     

支持特征构成的数据结构及基于特征设计的研究

特征造型是CAD技术的发展趋势之一,基于特征的设计在CAD／CAM中扮演了重要的角色。本文结合工程实际,探讨了特征的定义及分类方法,提出了支持特征设计的新型数据结构并研究了基于特征的造型操作方法－动态拓扑信息处理方法及特征管理模式。     

大数据时代的设计

目的对大数据时代的设计特征进行分析,探讨大数据背景下设计发展的方向。方法以大数据时代为背景,从设计思维方法、设计思路、设计范畴3个方面进行分析,研究大数据时代设计特征,探讨和传统设计的差异。结论大数据时代设计思维已经由传统注重因果关系转变为注重相关关系;设计不再仅仅依靠传统经验,而更注重大数据分析与应用;大数据时代正在打破传统设计和其他学科之间的篱笆,出现多学科交叉与综合的特点,这种趋势将会成为未来设计的发展方向。     

基于特征设计和参数设计的零件模型

为提高ＣＡＤ／ＣＡＭ系统的描述能力和效率，本文提出一种基于特征设计和参数设计的零件模模型。该模型采用了一系列新的表示方法，包括辅助点线面表示，工作坐标系表示、截面轮廓和轨迹表示、和零件模表示。辅助线面用于定位特征。     

基于特征的零件加工成本评价

提出了一种基于零件形状特征及特征间关系的成本评价方法。又根据不同加工方式建立了成本模型，并利用有向图来表示加工过程，把加工成本评价问题转化为最小路径问题求解。     

Feature-based design: Four hypotheses for future CAD systems

Features are meaningful abstractions of geometry that engineers use to reason about components, products, and processes. For design activity, features are design primitives, serve as the basis for product representations, and can incorporate information relevant to life-cycle activities such as manufacturing. Research on feature-based design has matured to the point that results are being incorporated into commercial CAD systems. The intent of this paper is to look forward. Hence, this paper does not play the role of a standard survey, which necessarily only reviews the past. Nevertheless, an appropriate historical context is provided as a basis for these particular futuristic projections. Applications of feature-based design and technologies of feature representations are reviewed, then open research issues are identified and put in the context of past and current work. Features are prominent as catalysts for computer-based design tools, but the vision presented expands upon this basis, delving beyond features. For that future design environment, four hypotheses are proposed as research challenges: two on the existence of fundamental subfeature elements and relationships for features, one that presents a new definition of design features, and one that argues for the successful development of concurrent engineering languages. Evidence for these hypotheses is provided from recent research results and from speculation about the future of feature-based design.     

Die shape design optimization of sheet metal stamping process using meshfree method

A die shape design sensitivity analysis (DSA) and optimization for a sheet metal stamping process is proposed based on a Lagrangian formulation. A hyperelasticity‐based elastoplastic material model is used for the constitutive relation that includes a large deformation effect. The contact condition between a workpiece and a rigid die is imposed through the penalty method with a modified Coulomb friction model. The domain of the workpiece is discretized by a meshfree method. A continuum‐based DSA with respect to the rigid die shape parameter is formulated using a design velocity concept. The die shape perturbation has an effect on structural performance through the contact variational form. The effect of the deformation‐dependent pressure load to the design sensitivity is discussed. It is shown that the design sensitivity equation uses the same tangent stiffness matrix as the response analysis. The linear design sensitivity equation is solved at each converged load step without the need of iteration, which is quite efficient in computation. The accuracy of sensitivity information is compared to that of the finite difference method with an excellent agreement. A die shape design optimization problem is solved to obtain the desired shape of the workpiece to minimize spring‐back effect and to show the feasibility of the proposed method. Copyright © 2001 John Wiley & Sons, Ltd.     

工程制图智能电子习题集软件系统的设计与实现

对工程制图智能电子习题集软件系统的设计进行了深入探讨,分析了对图形支撑平台系统的要求,提出一个开放的由习题库、答案库和习题三维模型库组成的电子习题集图形库系统;对工程制图作业的智能批改策略进行了深入探讨,包括工程制图习题作业自动批改要求、自动批改处理策略及一个基于图形特征结构的智能匹配的图形几何匹配方法;提出一个基于正向推理的图形匹配识别算法。     

Feature-based metal stamping part and process design. Part II: stamping process planning

In metal stamping development, stamping process planning plays quite an important role for the related die design. As mentioned in Part-I [Feature-based metal stamping part and process design. Part 1: stampability evaluation, 2007, 45, 2673–2695], the feature can encapsulate comprehensive engineering information; this paper proposes to realize stamping process planning based on feature mapping. A feature mapping system, between a stamping design feature space and a stamping process feature space, has been presented. The inherent mechanism of such feature mapping has been investigated with formal representations. The substance of feature mapping is the processing of related knowledge and information. Mapping rules are established to generate the stamping operation and stamping direction. Four mapping manners (direct mapping, conjugate mapping, syncretic mapping, and sequential mapping) are presented for generating the form of process feature, through geometrical information transformation from design features. Meanwhile, considering a stamping process plan as an ordered tree, this paper has introduced how to build a stamping process plan through organizing the stamping operations mapped from design features, and an illustrative example is demonstrated.     

A continuum approach for second-order shape design sensitivity of elastic solids with loaded boundaries

A second-order shape design sensitivity analysis (DSA) method applicable to the shape change on the loaded boundaries is derived for three-dimensional linear elastic solids using a continuum method with the material derivative. The continuum method is also used to derive mixed second-order variations of stress and displacement performance measures with respect to shape design variables and distribution of non-conservative traction loads, and also with respect to shape design variables and material properties. A shape design acceleration field is defined for the second-order shape design sensitivity. Both direct differentiation and hybrid methods are presented in this paper. A numerical method, which can be implemented using established finite element analysis (FEA) codes, is developed. The feasibility and accuracy of the proposed second-order shape DSA method has been demonstrated by solving a structural example-doubly curved arch dam.     

基于局部形态融合的产品创新设计研究

提出了局部形态融合以保持产品设计风格基因传承和创新的设计方法,研究了自产品三维模型设计方案中提取形态特征曲线的方法,利用已有的曲线融合算法,实现了特征曲线的融合,并将融合后的特征曲线替换产品三维模型中原有的特征曲线,从而获得了大量新形态的设计方案。将该创新设计方法应用于产品创新设计中,不仅可以实现多个三维模型的局部形态特征融合,还可实现三维模型与图像、绘制曲线的特征曲线融合。     

模块化设计思想在工业产品造型设计中的运用

模块化是协调设计中多个需求,实现整体系统、创造多个不同的形态并降低产品成本的一种有效方法,采用模块化设计思想对工业设计系统进行探讨,有利于标准化的设计和规范的管理,能充分运用现代科学技术--计算机进行快速成型技术和虚拟表达、多媒体技术等手段.通过二极管泵浦固体激光器结构设计的分析,说明了在机械设计中模块化设计形成的特点,探讨工业设计在产品造型系统化设计中,运用模块化设计思想的可行性.