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Training / Education

Photogrammetry and Analysis of Digital Media

2019-06-26
Hands-on training using actual case studies and a variety of software titles such as 3D Studio Max, PTLens, Photoshop, and PFTrack will introduce the students to the latest techniques.
Event

Appendix C: Modeling - Droplet Trajectory

2019-06-20
This session includes a numerical improvement of 2D ice accretion simulation capability, including roughness, accretion, 3D ice shapes, shedding, and runback by exploring the 14 CFR 25/29 Appendix C icing envelope.
Event

Appendix C: Modeling - Applications

2019-06-20
This session includes a numerical improvement of 2D ice accretion simulation capability, including roughness, accretion, 3D ice shapes, shedding, and runback by exploring the 14 CFR 25/29 Appendix C icing envelope.
Event

(Part 2 of 2) Appendix C: Modeling - Roughness

2019-06-19
This session includes a numerical improvement of 2D ice accretion simulation capability, including roughness, accretion, 3D ice shapes, shedding, and runback by exploring the 14 CFR 25/29 Appendix C icing envelope.
Event

Appendix C: Modeling - Ice Protection & Shedding

2019-06-19
This session includes a numerical improvement of 2D ice accretion simulation capability, including roughness, accretion, 3D ice shapes, shedding, and runback by exploring the 14 CFR 25/29 Appendix C icing envelope.
Event

Appendix C: Modeling - CFD

2019-06-18
This session includes a numerical improvement of 2D ice accretion simulation capability, including roughness, accretion, 3D ice shapes, shedding, and runback by exploring the 14 CFR 25/29 Appendix C icing envelope.
Technical Paper

Prediction of Broadband Noise in an Automotive Centrifugal Compressor with Three-Dimensional Computational Fluid Dynamics Detached Eddy Simulations

2019-06-05
2019-01-1487
In order to further understand this phenomenon, a detailed, three-dimensional (3D) computational fluid dynamics (CFD) model of the experimental setup was constructed to study how the impeller flow-field changes with flow rate and contributes to noise generation. ...Predictions from this 3D CFD model agree reasonably well with experiments, including the steady-state performance and noise as captured from the pressure transducer installed in the compressor inlet duct. ...The unsteady flow-field of the 3D CFD predictions is then spatially analyzed to identify regions with the highest noise and investigate the contributing flow structures.
Technical Paper

A Non-Contact Technique for Vibration Measurement of Automotive Structures

2019-06-05
2019-01-1503
In current work, a multi-view 3D DIC approach is used to predict the vibrational characteristics of a full vehicle. A pair of DIC cameras is roved over the entire vehicle to capture the deformation data of each field of view. ...The measured data includes the geometry and displacement data which is mapped into the global coordinate system using 3D transformation matrices. The obtained data in the time domain for each field of view is transformed to frequency domain using Fast Fourier Transformation (FFT) to extract the operational deflection shapes and resonant frequencies for each field of view.
Technical Paper

Early Research on Additively Manufactured Sound Absorbers

2019-06-05
2019-01-1576
As the technology evolves, it is anticipated that industry will begin 3D printing sound absorbers. In many cases, these are components that may be difficult to manufacture in another way. ...Several designs were 3D printed and positioned in an impedance tube for testing. Absorbers including long perforations, lightweight panels, and Helmholtz resonators with corkscrew configured necks are considered.
Technical Paper

Fast broadband curved Insertion Loss simulation of an inner dash insulator using a cylindrical Transfer Matrix Method spectral approach

2019-06-05
2019-01-1583
Middle and high frequency vibro-acoustic simulation of complex shape insulators requires using 3D poroelastic finite elements either for the whole part (up to 2500 Hz maximum) or through singly curved pre-computed Insertion Losses (up to 5000 Hz maximum) to be introduced in large SEA or energy-based models. ...Beyond frequency range limitations, poroelastic finite elements computations take too much time of typically a few hours each, following all curvatures and thickness 3D maps. A cylindrical Transfer Matrix Method spectral approach allows computing the singly curved Insertion Losses up to 10 kHz in a few minutes only.
Training / Education

Photography for Accident Reconstruction, Product Liability, and Testing

2019-05-06
Many technical projects, most vehicle and component testing, and all accident reconstructions, product failure analyses, and other forensic investigations, require photographic documentation. Roadway evidence disappears, tested or wrecked vehicles are repaired, disassembled, or scrapped, and components can be tested to failure. Photographs are frequently the only evidence that remains of a wreck, or the only records of subjects before or during tests. Making consistently good images during any inspection is a critical part of the evaluation process.
Event

UV/EB Leading the Way for the Future of Automotive

2019-04-11
Success in cure technology attained through advances photocurable materials, UV Laser technology, lamp development, 3D computer imaging, and the development of novel materials, processes and facilities, are significantly advancing the efforts of energy reduction and vehicle lightweighting resulting in improvements of reduced GHG emissions, manufacturing Cycle Time, Small Footprint manufacturing, speedy proto-type development and Additive Manufacturing, all creating a revolution in manufacturing.
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