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Many manufacturing companies want to apply AFP technology to complex high-curvature part shapes. As new AFP machine technologies are developed to specifically apply material over complex shapes, new and innovative NC programming approaches are needed to successfully, reliably, and accurately apply material with good consolidation, while meeting the fiber direction and coverage requirements. A big issue with AFP is the production rate vs. part complexity. Most complex shapes can be created with a single .125? wide strip (tow) of material. But the production time would be impractically long. So machine builders create 6, 8, 16, even 32 tow AFP heads, and use the widest tow possible for the highest laydown rates. But then wide compaction rollers on these systems have difficulty consolidating material over curved surfaces, and the minimum steering radius of wider tows challenge the software?s ability to meet the layup requirements.

“Spotlight on Design” features video interviews and case studies, focusing on technology breakthroughs, hands-on testimonials, and the importance of fundamentals. Viewers are virtually taken to industry labs and research centers to learn how design engineers solve real-life problems. These challenges include enhancing product performance, reducing costs, improving quality and safety, while decreasing environmental impact, and achieving regulatory compliance. In the episode “Additive Manufacturing: 3D Printing in the Automotive Industry” (20:00), engineers from Fiat Chrysler Corporation (FCA) explain the importance of using 3D printing to test multiple design scenarios and develop solutions that can be quickly evaluated on test tracks. And Local Motors shows how it builds a vehicle from the ground up with a 3D printer, and without a traditional assembly line.

The 8 papers featured in this technical paper collection advance the knowledge in product design, manufacturing processes, and engineering analysis using the state-of-the-art computer technology. The scope includes research findings in such areas as computational fluid dynamics, manufacturing and assembly simulation, crushworthliness, computational mechanics, mold flow, ride simulation, ergonomic design and analysis, NVH, and reverse engineering.

This technical paper collection contains 6 papers detailing advances in steering and braking technologies and integrated chassis safety systems.

The 12 papers in this technical paper collection focus on design optimization. Topics covered include: design optimization of front bumper system; free-form optimization method for designing automotive shell structures; air suspension system model and optimization; anti-roll bar link toggling; structural optimization for vehicle dynamics loadcases; lite composite stiffener design for pedestrian protection; and more.

The 22 papers in this technical paper collection discuss application and development of numerical methods along with test correlation and optimization for NVH issues of full vehicle and sub-assembly; unclassified military ground vehicle including hull/chassis/powertrain related durability/survivability/crashworthiness/shock, vibration and acoustics/CFD; advanced material modeling; fasteners, welds and joints; and optimization methodology development, testing and correlation.

The 22 papers in the technical paper collection focus on advanced technologies in material modeling, stress calculation and fatigue analysis, not only innovative and improved methods in these areas but also innovative and improved applications to automotive engineering. Topics covered include: material constitutive model development; innovative and improved modeling techniques for stresses; recent advances in fatigue damage calculation; and fatigue life predictions.

The 8 papers in this technical paper collection focus on CAD/CAM/CAE Technology. Topics covered include the accuracy of CAD/CAM parts, cluster analysis, loading rate dependence, and more. The 8 papers in this technical paper collection focus on CAD/CAM/CAE Technology. Topics covered include the accuracy of CAD/CAM parts, cluster analysis, loading rate dependence, and more.

The 7 papers in this technical paper collection cover design optimization. Topics discussed include the XAM hybrid electric vehicle prototype, automotive vacuum pumps, optimizing cross-sections to reduce noise and weight, and more. The 7 papers in this technical paper collection cover design optimization. Topics discussed include the XAM hybrid electric vehicle prototype, automotive vacuum pumps, optimizing cross-sections to reduce noise and weight, and more.

The 7 papers in this technical paper collection discuss CAE analysis and application. Topics covered include structure NVH, vibro-acoustics, wind noise and aeroacoustics, intake/exhaust and vehicle interior noise. The approximately 8 papers in this technical paper collection discuss CAE analysis and application. Topics covered include structure NVH, vibro-acoustics, wind noise and aeroacoustics, intake/exhaust and vehicle interior noise.

The 11 papers in this technical paper collection discuss CAE durability analysis and applications. Topics covered include material constitutive model development, innovative and improved modeling techniques for stresses, recent advances in fatigue damage calculation and fatigue life predictions, and more. The 11 papers in this technical paper collection discuss CAE durability analysis and applications. Topics covered include material constitutive model development, innovative and improved modeling techniques for stresses, recent advances in fatigue damage calculation and fatigue life predictions, and more.

The 16 papers in the technical paper collection cover topics such as: kinematic modeling, finite element analysis, virtual testing, and inverse engineering techniques.

The 22 papers in this technical paper collection focus on the state-of-the-art fatigue theory and advanced development in fatigue analysis methodology and research. Studies and discussions on innovative and improved fatigue theory/methods in material constitutive modeling, damage rules/fatigue damage calculation, and fatigue life predictions.

This technical paper collection focuses on state-of-the-art fatigue theory and advanced development in fatigue analysis methodology and research. Studies and discussions on innovative and improved fatigue theory/methods in material constitutive modeling, damage rules/fatigue damage calculation, and fatigue life predictions will be addressed.

This collection of technical papers focuses on state-of-the-art fatigue theory and advanced development in fatigue testing, material behavior under cyclic loading, and fatigue analysis methodology & research in the ground vehicle industry.

Classical HCCI combustion with temperature controlling combustion onset and only a modest effect of fuel injection. Papers describing experiments and test data, simulation results focused on applications, fuel/additive effects, combustion control, and mode change are invited and will be placed in appropriate sub-sessions.

This technical paper collection will showcase the creation and application of various tools that will allow for the design and manufacture of parts, equipment, facilities and tests that eliminate the need for physical part prototyping early in a program. The ability to model various aspects of design, test and manufacturing allows for more accurate, cost effective and faster development and product delivery to market.

This collection of papers focus on state-of-the-art fatigue theory and advanced development in fatigue testing, material behavior under cyclic loading, and fatigue analysis methodology & research in the ground vehicle industry. Studies and discussions on innovative and improved fatigue theory/methods in will be discussed along with and engineering applications of CAE durability analysis.

This collection papers advances the knowledge in product design, manufacturing processes, and engineering analysis using the state-of-the-art computer technology. The scope includes such areas as CFD, manufacturing and assembly simulation, crash-worthiness, computational mechanics, mold flow, ride simulation, ergonomic design, NVH, reverse engineering, etc. Developments in numerical methods applicable to automotive engineering problems are also included.

Abstract Gasoline particulate filters (GPFs) are important aftertreatment components that enable gasoline direct injection (GDI) engines to meet European Union (EU) 6 and China 6 particulate number emissions regulations for nonvolatile particles greater than 23 nm in diameter. GPFs are rapidly becoming an integral part of the modern GDI aftertreatment system. The Active Exhaust Tuning (EXTUN) Valve is a butterfly valve placed in the tailpipe of an exhaust system that can be electronically positioned to control exhaust noise levels (decibels) under various vehicle operating conditions. This device is positioned downstream of the GPF, and variations in the tuning valve position can impact exhaust backpressures, making it difficult to monitor soot/ash accumulation or detect damage/removal of the GPF substrate. The purpose of this work is to present a unique example of subsystem control and diagnostic architecture for an exhaust system combining GPF and EXTUN.