NEW HOLISTIC APPROACHES FOR CAX-BASED …...NAFEMS World Congress 2013 9-12 June 2013 | Salzburg |...
Transcript of NEW HOLISTIC APPROACHES FOR CAX-BASED …...NAFEMS World Congress 2013 9-12 June 2013 | Salzburg |...
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Werner Pohl, Contact Software GmbH Klemens Rother, Christian Löffl, Munich University of Applied Sciences
NEW HOLISTIC APPROACHES FOR CAX-BASED
CONCEPTUAL DESIGN
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NAFEMS World Congress 2013
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Introduction and Motivation
Description of Research Project
Selected Topics
Summary
Agenda
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1. Introduction and Motivation
Objectives for development in the automotive industry:
Much more innovative cars need to be developed and will be
developed!
Managing requirements on the desired product is mandatory for
successful frontloading
Managing collaboration in conceptual design to improve efficiency
Creation and analysis of alternatives and use of optimization to fully
scan the design space available
Reversing the weight spiral is an objective
Strengthen collaborative design and engineering to improve “logistics
of knowledge” and remove obstacles
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More innovative car bodies required
„Conversion Design“
„Purpose Design“
[AUDI]
[SMART]
[Opel] [Rother. IAA,2011] [Rother MichelinChallengeBibendum: 2011]
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Much more innovative cars need to be developed
Managing requirements on the desired product
Managing collaboration in conceptual design Creation and analysis of alternatives and use of optimization
Reversing the weight spiral
Strengthen collaborative design and engineering
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Creation and analysis of alternatives and use of
optimization to fully scan the design space available
Traditional Desired
Simulation driven Process Generation of alternatives, mutations
Optimization
Robustness
Reliability
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Reversing the weight spiral is an objective
[Trautwein, T., Henn, S., Rother, K.: Weight Spiral - Adjusting Lever in Vehicle Engineering, Vol. 113, ATZ 05/2011, Vieweg Verlag, Wiesbaden (2011) ]
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NAFEMS World Congress 2013
9-12 June 2013 | Salzburg | Austria
Much more innovative cars need to be developed
Managing requirements on the desired product
Managing collaboration in conceptual design
Creation and analysis of alternatives and use of optimization
Reversing the weight spiral
Strengthen collaborative design and engineering
to improve “logistics of knowledge” and remove
obstacles
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2. Description of Research Project
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3. Selected Topics
Parametric modeling of geometry
Coupling industrial design (styling) and structural design
Simplified analysis methods for conceptual models
Data and knowledge management
…
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Parametric modeling of geometry
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Functional based modeling approach vs. CSG/BREP
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[Marijanovic, Michael: Prozessentwicklung von Konstruktionsmethoden innerhalb der virtuellen Karosserie-Konzeptentwicklung. Diploma thesis, Munich University of Applied Sciences (2012)]
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Concept modeling and detailed design
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Coupling Industrial Design and Structural Design
[Salfinger, Armin: Designabsicherung in der „Frühen Phase“, mit Hilfe einer Schnittstelle zwischen dem FCM und Maya. Diploma thesis, Munich University of Applied Sciences (2012) ]
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Simplified analysis methods for conceptual models F
orc
e, M
om
en
t
elastic range
peak load, initiation of
deep plastic collapse
deep plastic
collapse with
folding
squash load,
full crushing length
used up or
jamming of a hinge
deep plastic
collapse without
jamming
deformation (translational, rotational)
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Simplified analysis methods for conceptual models
[Rustaee Khoshkbijari, Mohammad: Crashgerechte Absicherung von parametrisierten Fahrzeug-Konzeptmodellen. Diplomathesis, Munich University of Applied Sciences (2010) ]
Analytical
Approach
Physical
Test
Deviation
Fmax 94,3% 100% 5,7%
Fmean 97,3% 100% 2,7%
Smax 100,8% 100% 0,8%
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Data and Knowledge management
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Summary