Virtual prototyping is a method in the process of product development. It involves using computer-aided design (CAD), computer-automated design (CAutoD) and computer-aided engineering (CAE) software to validate a design before committing to making a physical prototype. This is done by creating (usually 3D) computer generated geometrical shapes (parts) and either combining them into an "assembly" and testing different mechanical motions, fit and function. The assembly or individual parts could be opened in CAE software to simulate the behavior of the product in the real world.
The product design and development process used to rely primarily on engineers' experience and judgment in producing an initial concept design. A physical prototype was then constructed and tested in order to evaluate its performance. Without any way to evaluate its performance in advance, the initial prototype was highly unlikely to meet expectations. Engineers usually had to re-design the initial concept multiple times to address weaknesses that were revealed in physical testing.
Move towards virtual prototypesEdit
Today, manufacturers are under pressure to reduce time to market and optimize products to higher levels of performance and reliability. A much higher number of products are being developed in the form of virtual prototypes in which engineering simulation software is used to predict performance prior to constructing physical prototypes. Engineers can quickly explore the performance of thousands of design alternatives without investing the time and money required to build physical prototypes. The ability to explore a wide range of design alternatives leads to improvements in performance and design quality. Yet the time required to bring the product to market is usually reduced substantially because virtual prototypes can be produced much faster than physical prototypes.[1][2][3][4]
End-to-end prototypingEdit
End-to-end prototyping accounts fully for how a product or a component is manufactured and assembled, and it links the consequences of those processes to performance. Early availability of such physically realistic virtual prototypes allows testing and performance confirmation to take place as design decisions are made; enabling the acceleration of the design activity and providing more insight on the relationship between manufacturing and performance than can be achieved by building and testing physical prototypes. The benefits include reduced costs in both design and manufacturing as physical prototyping and testing is dramatically reduced/eliminated and lean but robust manufacturing processes are selected.[5]
EffectsEdit
The research firm Aberdeen Group reports that best-in-class manufacturers, who make extensive use of simulation early in the design process, hit revenue, cost, and launch date and quality targets for 86% or more of their products.[6] Best-in-class manufacturers of the most complex products get to market 158 days earlier with $1.9 million lower costs than all other manufacturers. Best-in-class manufacturers of the simplest products get to market 21 days earlier with $21,000 fewer product development costs.[7]
ExamplesEdit
Fisker Automotive used virtual prototyping to design the rear structure and other areas of its Karma plug-in hybrid to ensure the integrity of the fuel tank in a rear end crash as required for Federal Motor Vehicle Safety Standards (FMVSS) 301 certification.[8]Agilent Technologies used virtual prototyping to design cooling systems for the calibration head for a new high-speed oscilloscope.[9]Miele used virtual prototyping to improve the development of its washer-disinfector machines by simulating their operational characteristics early in the design cycle.[10] Several CAE software solutions (for example, Working Model and SimWise) offer the possibility to check the benefits of virtual prototyping even for students and small companies, and collection of case studies are available since 1996.[11]
^Schaaf, James C., Jr.; Thompson, Faye Lynn (1997). Systems Concept Development with Virtual Prototyping. 29th conference on Winter simulation. pp. 941–947. CiteSeerX10.1.1.74.2308.{{cite conference}}: CS1 maint: multiple names: authors list (link)
^LaCourse, Dan (May 1, 2003). "Virtual Prototyping Pays Off". Cadalyst Magazine.
^Otto, Von Thomas (July–August 2010). . Digital Engineering. 6/10. Archived from the original on 2011-01-02. Retrieved 2010-10-05.
^Fouad El Khaldi, Raymond Ni, Pierre Culiere, Peter Ullrich, Carlos Terres Aboitiz. "Recent Integration Achievements in Virtual Prototyping for the Automo bile Industry". ESI-group.com; ESI Group. Presented May 31, 2010, FISITA.
^Aberdeen Group (October 2006). "Simulation-Driven Design Benchmark Report: Getting It Right the First Time". p. i. October 2006. Retrieved 2010-08-25.
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Virtual prototyping is a method in the process of product development It involves using computer aided design CAD computer automated design CAutoD and computer aided engineering CAE software to validate a design before committing to making a physical prototype This is done by creating usually 3D computer generated geometrical shapes parts and either combining them into an assembly and testing different mechanical motions fit and function The assembly or individual parts could be opened in CAE software to simulate the behavior of the product in the real world Contents 1 Background 2 Move towards virtual prototypes 3 End to end prototyping 4 Effects 5 Examples 6 See also 7 ReferencesBackground EditThe product design and development process used to rely primarily on engineers experience and judgment in producing an initial concept design A physical prototype was then constructed and tested in order to evaluate its performance Without any way to evaluate its performance in advance the initial prototype was highly unlikely to meet expectations Engineers usually had to re design the initial concept multiple times to address weaknesses that were revealed in physical testing Move towards virtual prototypes EditToday manufacturers are under pressure to reduce time to market and optimize products to higher levels of performance and reliability A much higher number of products are being developed in the form of virtual prototypes in which engineering simulation software is used to predict performance prior to constructing physical prototypes Engineers can quickly explore the performance of thousands of design alternatives without investing the time and money required to build physical prototypes The ability to explore a wide range of design alternatives leads to improvements in performance and design quality Yet the time required to bring the product to market is usually reduced substantially because virtual prototypes can be produced much faster than physical prototypes 1 2 3 4 End to end prototyping EditEnd to end prototyping accounts fully for how a product or a component is manufactured and assembled and it links the consequences of those processes to performance Early availability of such physically realistic virtual prototypes allows testing and performance confirmation to take place as design decisions are made enabling the acceleration of the design activity and providing more insight on the relationship between manufacturing and performance than can be achieved by building and testing physical prototypes The benefits include reduced costs in both design and manufacturing as physical prototyping and testing is dramatically reduced eliminated and lean but robust manufacturing processes are selected 5 Effects EditThe research firm Aberdeen Group reports that best in class manufacturers who make extensive use of simulation early in the design process hit revenue cost and launch date and quality targets for 86 or more of their products 6 Best in class manufacturers of the most complex products get to market 158 days earlier with 1 9 million lower costs than all other manufacturers Best in class manufacturers of the simplest products get to market 21 days earlier with 21 000 fewer product development costs 7 Examples EditFisker Automotive used virtual prototyping to design the rear structure and other areas of its Karma plug in hybrid to ensure the integrity of the fuel tank in a rear end crash as required for Federal Motor Vehicle Safety Standards FMVSS 301 certification 8 Agilent Technologies used virtual prototyping to design cooling systems for the calibration head for a new high speed oscilloscope 9 Miele used virtual prototyping to improve the development of its washer disinfector machines by simulating their operational characteristics early in the design cycle 10 Several CAE software solutions for example Working Model and SimWise offer the possibility to check the benefits of virtual prototyping even for students and small companies and collection of case studies are available since 1996 11 See also EditCrash simulation Finite element analysis Computer simulationReferences Edit Schaaf James C Jr Thompson Faye Lynn 1997 Systems Concept Development with Virtual Prototyping 29th conference on Winter simulation pp 941 947 CiteSeerX 10 1 1 74 2308 a href Template Cite conference html title Template Cite conference cite conference a CS1 maint multiple names authors list link LaCourse Dan May 1 2003 Virtual Prototyping Pays Off Cadalyst Magazine Ghazaleh Tim November 1 2004 Virtual Prototyping PDF Printed Circuit Design amp Manufacture Magazine Otto Von Thomas July August 2010 Endlich umfassend simulieren Digital Engineering 6 10 Archived from the original on 2011 01 02 Retrieved 2010 10 05 Fouad El Khaldi Raymond Ni Pierre Culiere Peter Ullrich Carlos Terres Aboitiz Recent Integration Achievements in Virtual Prototyping for the Automo bile Industry ESI group com ESI Group Presented May 31 2010 FISITA Aberdeen Group October 2006 Simulation Driven Design Benchmark Report Getting It Right the First Time p i October 2006 Retrieved 2010 08 25 Aberdeen p 5 Fisker reduces number of prototypes cuts time to market with Virtual Performance Solution Automotive Engineering International January 2013 Matt Richter Simulation techniques help cool the calibration head for the world s fastest real time oscilloscope R amp D Magazine October 2013 A Better Way to Make Medical Instruments Come Clean Medical Design Technology October 2013 Lista Studio Lista Studio s Case Studies Retrieved from https en wikipedia org w index php title Virtual prototyping amp oldid 1011533927, wikipedia, wiki, book, books, library,
