There is a huge misunderstanding between the overlapping functions in which these two processes-industrial design and design engineering-operate. The following definitions are from Wikipedia:
Industrial Design (ID) is an applied art whereby the aesthetics and usability of products may be improved. Design aspects specified by the industrial designer may include the overall shape of the object, the location of details with respect to one another, colors, texture, sounds, and aspects concerning the use of the product ergonomics.
Design Engineering (DE) is a discipline that creates and transforms ideas and concepts into a product definition that satisfies customer requirements.
The definitions of these two categories of design have a fundamental difference between them: ID is an applied art, whereas DE is a discipline. This means that industrial designers more often have more liberal control than design engineers to design everything that they or their customers like. This is due to the fact that design engineers have only one choice: make it work.
However, since the functions of each are often unclear, customers can easily be confused as to which one they need. Although, misunderstanding which one they need is almost inevitable because of a series of factors:
- Each industrial designer or design engineer has greed to get the job, so they do not make it clear to the customer what their function is.
- The customer looks for a "one stop shop", so they want to accomplish everything in one shot, whereas they may need both an industrial designer and design engineer.
- Designers believe to be something they are not. Some industrial designers believe to be design engineers as well, only to end up creating a product that is not functional or suitable for manufacturability. Whereas, some design engineers believe to be industrial designers as well, only to end up creating an ugly product that requires a three-armed person to use it.
When I started in the plastics injection molding industry 26 years ago, I was fortunate to be taught then the difference between ID and DE. And so, as a design engineer, I have always been careful not to step into the ID area. My job is to design a working product and send that to an industrial designer to dress it up.
Having worked with different customers of different backgrounds, I realized that industrial designers and design engineers very rarely recommend that their customers see the other (unlike doctors do). This is a matter of pride and business. There is a fear that the customer will think one is incompetent or that the customer will finish the project with the other one, although unbeknown to the customer the other one is not the expert in both.
I consistently receive product designs from industrial designers, in which case 99% the parts are not ready for manufacturing. They most often times need a draft angle added in order to eject the part from the mold or a wall thickness increased to accommodate the material specification. Somebody has to spend the time to redesign the part, and that has to be paid for by the customer. Often times, the customer does not understand the need to redesign and the sequence of events to validate. This situation creates confusion, frustration, and mistakes.
When a customer pays for a design, they expect the design to be ready for manufacturing. However, many times customers find themselves paying more and waiting longer for product redesign so that it is suitable for manufacturing. Therefore, know the difference between industrial design and design engineering, and ensure you know which one you are dealing with.
by Jeffrey Rowe, Editor
As I have stated over the years, computer-aided design (CAD) packages used for design engineering are not the same as computer-aided industrial design (CAID) packages, and vice versa - each product type addresses a specific need and serves a definite purpose. Historically, CAID has occupied the conceptual front-end of the product development process, while CAD has been best suited for the design refinement and manufacturing portions of the process.
Typically, CAID packages have been used by design specialists (usually industrial designers) and the CAID data is exported (either directly or via IGES or STEP) to CAD/CAM packages for actually producing a design. All too often, however, the manufactured product bears little resemblance to the design conceived and intended by the industrial designer. This situation is often referred to as "throwing a design over the transom," where designers are often accused of creating concepts that are either not practical or impossible to economically manufacture; while more technical, engineering types are accused of destroying design intent.
CAID packages are developed specifically with industrial designers in mind - in a graphic environment they strive to stimulate creativity by providing a wide variety of design options. In essence, these tools are used to quickly create and alter the shape, form, and surface qualities of 3D models. CAID tools also excel at presenting design concepts with photorealistic rendering, lighting, and animation effects.
Are they really that different? Well, yes and no. Of course, there are some common traits found in both CAD and CAID packages, namely, they both are used to design physical objects, while attempting to compress the product development cycle, albeit with distinct methodologies and expectations.
Although CAD and CAID packages do share some common elements, overall they probably are more different than they are similar, especially with regard to the process and environment in which they are used. While great strides have been made to the contrary, CAD tools are typically used in a more traditional serial, one-way process or workflow of Design'Engineering'Manufacturing. CAID tools, on the other hand, are used in a more bi-directional workflow that not only involves industrial designers, but also marketing, engineering, manufacturing, as well as the end user/consumer.
Obviously, industrial design and design engineering are very different disciplines with very different tool requirements. Industrial design is art-centric, while engineering is math-centric. Industrial designers gravitate towards traditional drawing tools; engineers are typically armed with formulas and calculators. Each discipline also has different deliverables. Industrial designers express and communicate design emotion and feeling, while engineers communicate dimensions and other numeric entities. As a result, industrial designers and engineers have fundamentally different requirements with regard to the design software they need to perform their respective types of work.
Until recently, many traditional CAD vendors didn't pay too much attention to the ID segment of the design software market because they perceived it as too small to bother with. However, over time, the practice of industrial design has received more respect and notoriety as a way to really distinguish products, especially consumer products, in a competitive marketplace.
I estimate that in the U.S alone there are approximately 30,000-35,000 people engaged in what can be termed industrial design. Many of these users are not degreed industrial designers, but they do perform most or all of the functions requisite for industrial design - aesthetic form, optimized function, and user interaction. Worldwide, I'd estimate this number could be expanded two or three times to the 75,000-100,000 range, so ID is not such a tiny niche after all. While these aren't huge potential customer numbers in the eyes of some MCAD vendors, several of them have begun to target and market to the relatively "small" industrial design sector of the design software market.
Today there remains a big gap in easily transforming 2D into 3D, as well as a gap between industrial designers and design engineers. To help bridge this gap, a growing number of vendors feel what is needed is a true unconstrained modeling, conceptual design tool allows and maintains true design intent throughout the process, and whose final product is a digital, visual representation of clay. A big part of the success of this type of tool is to minimize user interaction with the modeling tool. In this scenario, however, traditional physical modeling will not decrease significantly in importance, because physical models always have been and probably always will be vital as output, confirmation/verification, control, and reference. This is why traditional physical models and model making are still big business. A sizeable percentage of physical models are created and used in the context of reverse engineering by scanning the models, thus transforming and transferring physical information into a digital form.
More than anything else, industrial designers insist on keeping their design as intended with re-interpretation of their work during the engineering and manufacturing phases kept to a bare minimum. To help ensure this, industrial designers require design software tools that supports their creative process, as well as integrating with the downstream design engineering environment. Here, CAID is as much a communication tool as it is a design tool. In an perfect world, industrial designers would like to see the following in a CAID package:
- Integrated 2D sketching and 3D modeling.
- Ease of experimentation with shape, form, and texture.
- Ability to create and refine any imaginable organic, freeform bodies.
- Presentation and visualization capabilities for design reviews.
- Data exchange with MCAD systems that maintain absolute data integrity and design intent.
- Ability to better communicate with design and manufacturing engineers.
The Week's Top 5
At MCADCafé we track many things, including the stories that have attracted the most interest from our subscribers. Below are the five news items that were the most viewed during last week.
First Portable Workstation To Incorporate NVIDIA Quadro FX 5500 Ultra High-End Graphics Board
NextComputing, creators of the first FlexTop computer, the NextDimension, announced the incorporation of the NVIDIA Quadro FX 5500 by PNY Technologies graphics board. The capability of a portable graphics workstation to accommodate this graphics board is an industry first. Engineered to address the most demanding GPU challenges, the NVIDIA NextComputing's NextDimension is the only graphics workstation currently on the market that allows a graphics board of this caliber to be portable. The FlexTop personal supercomputer's two PCI Express slots, another first in a portable workstation, make it possible. Coupling the GPU performance of the NVIDIA Quadro FX 5500 by PNY graphics board with the CPU performance of the best in breed Dual Core Opteron Processors by AMD, provides maximum computational and graphics performance.
UGS Names Solid Edge Design Contest Winners
UGS announced the winners of its Solid Edge contest for the first half of 2006. Winning products were designed and rendered using Solid Edge, the CAD component of the UGS Velocity Series portfolio. Top honors in EMEA went to Ing. Kucera Lukas of LEKOV, a.s. (Czech Republic) and to Reinhard Kittler of Industrial Design Union Kittler Kurz (IDUKK) (Austria). Top honors in Asia Pacific went to Shrikar Nandavar and Vinay Mallapur of Miven Mayfran Conveyors PVT., LTD. (India) and A.R. Menon of Miven Machine Tools Ltd (India). Top honors in the Americas went to Hugo Bardou of Bardou Consulting/Xprezo Cycles (Canada) and to Marc Stringer at AMF (Canada).
White Paper Notes Major Paradigm Shift To Resolve CAE Data Challenges
MSC.Software announced the release of a white paper by Collaborative Product Development Associates (CPDA) entitled "Simulation Data and Process Management with SimManager." The paper, drawing on customer interviews, states that "traditional organizational approaches and tools no longer support the fidelity and response time needed to drive down product development cycle times." MSC.SimManager is an enterprise-level software product that allows global businesses to leverage their engineering processes throughout the enterprise to greatly speed design and development. Providing functionality that allows organizations to create, manage and re-use simulation data, the product enables companies to control, share and extend engineering data and the processes related to their products both internally and externally into the supply chain.
COMSOL Multiphysics 3.3 Brings Simulations To More Applications
With its enhanced features, COMSOL Multiphysics 3.3 brings simulation and virtual prototyping to a wider community of potential users. Key among new enabling features are ready-made couplings between common physics, an even more convenient user interface thanks to a Model Tree, interactive meshing, merging components to build models, the ability to handle CAD assemblies, support for the multiphysics analyis of surface contact, and gains towards fully automatic solver selection. Users can also expand on the package's internal material database by enacting an online search of the Matweb database and directly importing material properties. Most CAD engines typically work with parts and assemblies, and COMSOL Multiphysics now supports them throughout the modeling process. Rather than import an assembly as a single unit, COMSOL Multiphysics now recognizes its constituent components, each with multiple parts, for instance to allow for different materials in each one. Parts and their physics can be coupled through a feature that allows for continuity or allows users to define other internal border definitions such as contact resistance.
Altair Engineering Releases HyperWorks 8.0
Altair Engineering announced the public release of Altair HyperWorks 8.0 - The Engineering Framework for Product Design. The integrated suite of advanced CAE software tools delivers advanced technology and functionality to increase efficiency and reduce cycle time in the development of innovative, robust products. The new products and functionality in HyperWorks 8.0 create a simulation technology suite for PLM. This release targets three main areas to aid manufacturers in bringing innovative products to market faster: it provides an integrated multi-disciplinary framework, enables a CAE-driven design process, and improves simulation turnaround time. Since CAE is becoming multi-disciplinary, once-separated analysis disciplines and activities begin to merge. HyperWorks 8.0 broadens application scope, while remaining committed to an open-systems environment. This environment provides clients both the flexibility and capabilities to solve complex problems.
Jeffrey Rowe is the editor and publisher of MCADCafé and MCAD Weekly Review. He can be reached here or 408.850.9230.
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