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During the tire development process, its handling properties are first assessed objectively by tests on specific test benches as on track. Then, professional test-drivers perform some subjective tests on track to evaluate its performances based on their own feeling. Here comes the importance of the vehicle-driver interactions understanding, i.e. the subject of the PhD supported by this Master Thesis, to answer such questions and adapt the tire to customer needs : "Which tire characteristic does influence this handling properties?", "Why is the driver not performing exactly the same maneuver when that tire parameter is changed?", "What does alter the driver judgment?". Some studies ongoing in the frame of this PhD had already shown correlations between subjective and objective assessments. As a results, a qualitative model was needed to corroborate these correlations, to link them to tire characteristics and specifications, and to bring a physical explanation of the phenomena observed. A theoretical tool, split in the three main blocks listed below, has then been implemented in MATLAB© during this internship to bring an analytical approach. 1. A body dynamics model consisting in a modified yaw-slip-roll single track model. The kinematics and compliance terms will also be integrated in this model. 2. A steering model, developed in four sub-models of increasing complexity. 3. A non linear tire model, defined following the Pacejka ’94 Magic Formula. All together, these blocks built a robust global model able to simulate a wide range of both open and close-loop maneuvers in the linear and non linear domains. Moreover, this model helped the study of tire characteristics influence on these maneuvers by using sensitivity analyses, which leaded to highlight two tire characteristics having a big influence on subjective assessments: the rear cornering stiffness and the pneumatic trail. Having been validated, this model will now be mostly used in a large-scale study within the Company, in the frame of Nico Pagliarecci PhD. Lastly, note that none of the parameters value or tire constructions used in this work to obtain the results presented will be provided explicitly, to respect the Goodyear confidentiality policy.
vehicle dynamics model --- steering model --- steering system --- K&C model --- tire model --- non linear tire model --- Pacejka model --- yaw slip roll model --- body dynamics model --- Ingénierie, informatique & technologie > Ingénierie civile
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This book presents the current views of leading physicists on the bizarre property of quantum theory: nonlocality. Einstein viewed this theory as “spooky action at a distance” which, together with randomness, resulted in him being unable to accept quantum theory. The contributions in the book describe, in detail, the bizarre aspects of nonlocality, such as Einstein–Podolsky–Rosen steering and quantum teleportation—a phenomenon which cannot be explained in the framework of classical physics, due its foundations in quantum entanglement. The contributions describe the role of nonlocality in the rapidly developing field of quantum information. Nonlocal quantum effects in various systems, from solid-state quantum devices to organic molecules in proteins, are discussed. The most surprising papers in this book challenge the concept of the nonlocality of Nature, and look for possible modifications, extensions, and new formulations—from retrocausality to novel types of multiple-world theories. These attempts have not yet been fully successful, but they provide hope for modifying quantum theory according to Einstein’s vision.
Stern–Gerlach experiment --- channel entropy --- non-locality --- nonsignaling --- retro-causal channel --- communication complexity --- controlled-NOT --- Bell test --- quantum measurement --- quantum mechanics --- quantum transport --- semiconductor nanodevices --- optimization --- quantum correlation --- PR Box --- non-linear Schrödinger model --- retrocausality --- entanglement --- device-independent --- Einstein–Podolsky–Rosen argument --- quantum nonlocality --- parallel lives --- PR box --- nonlocal correlations --- hypothesis testing --- quantum bounds --- channel capacity --- Wigner-function simulations --- quantum correlations --- quantum --- pre- and post-selected systems --- local hidden variables --- density-matrix formalism --- collapse of the quantum state --- local polytope --- quantum teleportation of unknown qubit --- parity measurements --- uncertainty relations --- nonlocality --- hybrid entanglement --- selectivity filter --- p-value --- steering --- axioms for quantum theory --- no-signalling --- ion channels --- KS Box --- EPR steering --- local realism --- Non-contextuality inequality --- entropic uncertainty relation --- continuous-variable states --- nonlocal dissipation models --- Bell’s theorem --- tsallis entropy --- classical limit --- general entropies --- pigeonhole principle --- biological quantum decoherence --- discrete-variable states
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In the industrial manufacturing of metals, the achievement of products featuring desired characteristics always requires the control of process parameters in order to obtain a suitable microstructure. The strict relationship among process parameters, microstructure, and mechanical properties is a matter of interest in different areas, such as foundry, plastic forming, sintering, welding, etc., and regards both well-established and innovative processes. Nowadays, circular economy and sustainable technological development are dominant paradigms and impose an optimized use of resources, a lower energetic impact of industrial processes and new tasks for materials and products. In this frame, this Special Issue covers a broad range of research works and contains research and review papers.
high speed steel --- n/a --- tempering --- microstructure. --- microstructure --- severe plastic deformation --- aging treatment --- indentation hardness --- Nb tube --- secondary recrystallization --- static mechanical behavior --- image analysis --- nanostructured coatings --- thin aluminum sheet --- precipitation behavior --- additive manufacturing --- Ti-6Al-4V alloy --- grain boundary --- property-microstructure-process relationship --- aeronautic applications --- inductive hot pressing --- fracture surface --- indentation modulus --- alloys --- intermetallic --- ultrafine grain --- columnar microstructure --- titanium composites --- multimodal --- steering knuckles --- ultra-fine grain --- damping --- process monitoring --- Al alloys --- tribology --- retained austenite --- mechanical properties --- texture inhomogeneity --- metal posts --- FEGSEM --- ?-platelet thickness --- anelasticity --- warm working --- dental materials --- computer-aided design (CAD) --- SEM --- high strength --- SEBM --- non-monotonic simple shear strains --- cavitation erosion --- aluminum film --- impact toughness --- wear --- mechanical property --- in situ secondary phases --- bainite rail --- corrosion resistance --- macro-instrumented indentation test --- EBM --- cryorolling --- aluminum alloy --- equal channel angular pressing --- microstructure inhomogeneity --- casting --- electron backscatter diffraction --- prediction model --- grain boundaries --- porosity --- texture --- high pressure die casting --- shear strain reversal --- finite element analysis --- thin films --- AZ91 alloy --- tensile properties --- tensile property --- Al 6061 alloys --- aging --- reduction --- Mg-10Y-6Gd-1.5Zn-0.5Zr --- caliber-rolling --- shrinkage
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