Due to recent development in computer software technology, it is becoming common to see actual physical prototypes replaced with computer generated models. In the automotive industry this method is often used until the product goes into production. With modern technology automotive functionality and aesthetics are designed and tested before even being created.
This article is going to go through they typical methods of corporate prototyping and outline its function and list the ever so important price tag associated with them. These methods will help companies realize the sheer amount of money involved with each process and understand ultimately why errors in preliminary designs must be avoided.
Virtual or computational prototyping is generally understood to be the construction of computer models of products for the purpose of realistic graphical simulation. These virtual models provide means of testing part behavior and simulated functionality without the need to manufacture the product first. It is one of the many strategies used at reducing design cycle time and prototype cost.
Virtual prototyping also lends itself to realistic process modeling. The availability of a graphical model of a part, or product, in course of manufacturing allows simulation of the effects of manufacturing processes. For example, it is possible to generate an animation of the manufacturing processes through material removal.
When developing a virtual model to represent the pre-production model correct assumption must be used. Incorrect assumptions or improper input value will produce very real, virtual prototype that are essentially inaccurate. Virtual prototyping requires an individual that understands the mechanics around the design and can properly implement the design. Because, if the preliminary design is incorrect, the entire manufacturing line producing that design will be incorrect, resulting in massive recalls and customer dissatisfaction.
Software like any other requires an initial investment before utilizing any of its features. Unlike office based softwares, computer-aided design is used in professional companies to model very sophisticated products. There are CAD softwares on the market that are free, but lack strength in its ability to generate complex geometry and limited to only certain applications. CAD software has been developing for over the past couple of decades and has reach a point where every yearly iteration is vastly improving over the previous. But, even the low end CAD softwares are a couple of hundred and the more sophisticated and performance intensive ones are in the thousands. Understanding how to use the software and make mechanical assumptions will determine the quality and correctness of the product developed.
Many companies wish to physically see a representation of what the actual product looks like. This means that many investors won’t place the money into a project until they can actually see the aesthetics and functionality. Computer based prototyping is good for internal representation where those in the approval chair understand its importance, but for investors outside of the company, this is not usually the case.