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July 26, 2019 | International, Aerospace

Dassault Aviation achève le déploiement de 3DExperience

Par Léo Barnier

Le groupe Dassault Aviation vient de passer une étape importante dans son processus de transformation numérique, en coopération avec Dassault Systèmes. L'avionneur français vient d'achever au mois de juillet le déploiement de la plateforme 3DExperience, développée par sa société « cousine », pour l'ensemble de ses programmes civils et militaires. C'est notamment le cas pour le futur Falcon qui doit être lancé prochainement.

Toutes les équipes de Dassault Aviation vont ainsi évouler sous un même environnement numérique. Il s'agit ainsi de créer une continuité qui s'appliquera depuis la conception des nouveaux programmes jusqu'aux services de soutien après-vente. Chacun pourra ainsi travailler sur une maquette numérique unique, qui intègre les demandes spécifiques de chacun, avec des outils compatibles entre eux.

Cela doit permettre par exemple au bureau d'études de prendre plus largement en compte les contraintes de l'ensemble du cycle de vie d'un produit ou d'un programme (production opérations, maintenance, rétrofit...) dès les premières esquisses, afin d'optimiser celui-ci dans la durée. A la clef, des gains de temps et de coûts pour le cycle de développement d'un avion - le nouveau Falcon notamment - comme pour la suite de sa vie opérationnelle.

Comme l'explique David Ziegler, vice-président Industrie aéronautique et défense de Dassault Systèmes : « La plateforme 3DExperience représente une approche holistique de l'innovation. Elle permet à Dassault Aviation d'accéder à des technologies et à des capacités intégrées et de relier tous les points, du concept aux opérations... »

Les différents services du constructeur disposeront d'outils entièrement intégrés dans cette plateforme unique, mais adaptés à leurs besoins spécifiques. Dassault Systèmes mentionne ainsi six solutions industrielles choisies par Dassault Aviation : Winning Concept, Program Excellence, Co-Design to Target, Ready for Rate, Build to Operate et Keep Them Operating.

Dassault Aviation entend aussi déployer cette continuité vers sa chaîne d'approvisionnement avec trente sociétés identifiées, comme l'explique Jean Sass, directeur général Systèmes d'information de Dassault Aviation : « Tous nos partenaires industriels travailleront en collaboration avec leurs clients sur une seule et même plateforme numérique. À terme, nous serons en mesure de proposer à nos clients de nouvelles expériences de vol à la pointe de l'innovation. »

Cette démarche de transformation numérique à l'aide de 3DExpérience a été entamée l'an dernier, en mai exactement. Dassault Aviation et Dassault Systèmes avaient alors signé un contrat pluriannuel pour remplacer l'ensemble des solutions de gestion du cycle de vie des produits (PLM) de l'avionneur.

https://www.journal-aviation.com/actualites/42877-dassault-aviation-acheve-le-deploiement-de-3dexperience

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  • What to look for in the upcoming Missile Defense Review

    January 14, 2019 | International, Land, C4ISR

    What to look for in the upcoming Missile Defense Review

    By: Aaron Mehta WASHINGTON — The Pentagon's Missile Defense Review is in the final stages of pre-release, sources tell Defense News, after more than a year of release delays. The review, a congressionally mandated document looking at the status of America's missile defense capabilities, could be unveiled as soon as the next week, although it has yet to be briefed to Congress, sources say. And while there appears to be significant momentum to actually releasing the document soon, the release has seemed imminent in the past, only to be pulled back at the last minute. The document has been the focus of intense speculation from both the missile defense and nonproliferation communities, with a wide expectation that the document will call for investments in new missile defense technologies and, potentially, a notable change in America's missile defense posture toward Russia and China. For years, America has maintained that missile defense systems capable of defeating major strategic systems are being designed and deployed not at another great power, but only at rogue actors — chiefly Iran and North Korea — who might seek to strike at the U.S. or its allies. The National Security Strategy — the overall security guidance released by the Trump administration in late 2017 — underlines this thinking, stating that “the United States is deploying a layered missile defense system focused on North Korea and Iran to defend our homeland against missile attacks. This system will include the ability to defeat missile threats prior to launch. Enhanced missile defense is not intended to undermine strategic stability or disrupt longstanding strategic relationships with Russia or China.” But analysts, such as Thomas Karako of the Center for Strategic and International Studies, have argued that in an era of great power competition, as illustrated in the National Defense Strategy, it's foolish to lack a plan for defending American assets and allies against China and Russia. “For so many decades we've been standing there like Samson, pushing apart Russia and China on the one hand and missile defenses on the other, saying they're not related,” Karako said. “So in some ways, that implicit connection [from previous reviews] could become much more explicit and pursued more aggressively, and really it should be.” Citing a need to defend against Russian and Chinese weapons is simply stating a need to defend against a major challenger. But China particularly seems to grow as a concern year over year for the U.S. government; it's notable that acting Secretary of Defense Patrick Shanahan's message to his staff upon taking over the top job at the Pentagon was to focus on “China, China, China.” Members of the nonproliferation community, such as Laura Grego of the Union of Concerned Scientists, argue that the technology needed to ensure America can defeat a major nation's use of strategic weapons is so expensive and technically challenging that getting to that point will divert funding from better projects. That spending decision would also encourage potential adversaries to invest more, not less, in nuclear weapons to counter America's perceived missile defense improvements, the argument goes. “Even absent a specific policy to take on Russia and China more explicitly, planned missile defense plans continue to be made in patterns that Russia and particularly China will not be able to ignore,” she said. “Trying to counter China and Russia's strategic deterrent with missile defense is of course a fool's errand and gets us further from reducing nuclear weapons, not closer. I hope that wiser heads prevail.” It is important to differentiate between regional missile defense systems being placed to defend allies against Russia or China, and the bigger homeland defense mission, said Kingston Reif of the Arms Control Association. For example, based on congressional guidance, it is expected the review will include ideas for countering hypersonic weapons, a threat currently originating from only Russia and China. “If the review goes so far as to broaden the role of missile defense to defend the U.S. homeland against Russian and Chinese missile attack[s], that would mark a major and radical change in U.S. policy,” Reif said. “The United States, Russia and China aren't taking into account the concerns the others have about their offensive and defensive developments sufficiently seriously to avoid increased risks of instability.” Technical capabilities While the great power competition may be a key driver, it is unlikely to be the only new aspect of the report. Karako hopes to see a layout for how missile defense capabilities fit into America's overall deterrence strategy, noting: “All capabilities are finite. So how is it that finite active missile defenses can contribute to deterring a Russia or China?" “Everyone knows if they want to, they could overwhelm a given defense. But it really comes down to how do certain capabilities deter aggression, opportunism, limited strikes, all these kind of things,” he said. “So I'll be looking for the articulation of how it contributes to overall deterrence for ourselves and our allies.” He's also keeping an eye out for how the document defines “integrated” missile defense systems, and whether planners can avoid stovepiping capabilities. Reif, for his part, is looking to see if there are increases in the Ground-Based Interceptor force in Alaska and California, or the creation of an East Coast missile defense site. Technologically, the report is expected to push for so-called left-of-launch technologies — capabilities that can take out a potential missile threat before it even leaves the launcher. “If you can see it early, you can kill it early,” Gen. John Hyten, the head of U.S. Strategic Command, said in August. “Driving that equation to the left has huge operational advantages because to actually shoot down a missile that somebody launched that comes back down on their head, do you think they are going to shoot another one? I don't think so. They are not going to shoot another one because it's just going to come right back down on their head, and so they stop shooting. Isn't that the whole point?” It's also expected the MDR will call for investment in laser systems, with Michael Griffin, the Pentagon's research and engineering head, saying in November that “you're going to see in upcoming budgets for missile defense a renewed emphasis on laser scaling across several” technology areas. In addition, expect talk of a space-based layer for missile defense, although that may be primarily focused on sensors rather than intercept capabilities — at least for now. Asked about space-based interceptors, Reif said: “Like a zombie that can't be killed, the idea keeps coming back. Pursuing space-based interceptors would be unaffordable, technically dubious and highly destabilizing.” The document, as ordered by Congress, must include milestone targets for developing new capabilities. It requires statements of five- and 10-year programmatic goals for developing capabilities, “as well as desired end states and milestones for integration and interoperability with allies, and a statement on the role of international cooperation,” per congressional guidance. Getting the MDR published has proven to be a nearly Sisyphean task for the Trump administration. Pentagon officials originally said the document would be released in late 2017 — then February, then mid-May and then late in the summer. In September, John Rood, who as undersecretary of defense for policy is the point man for the MDR, indicated the report could come out in a matter of weeks. And in October, Shanahan, then the deputy secretary of defense, said the document had been done “for some time.” There is also widespread speculation in the missile defense community that the review has been delayed, at least in part because of the warmed relations between the Trump administration and North Korea. Notably, the mid-May time frame for release, which was floated by Shanahan in April, lined up President Donald Trump's planned meeting in Singapore with North Korean leader Kim Jong Un. While that meeting was canceled and then eventually happened in June, there was a sense the Pentagon did not want to do anything that could jeopardize those talks, such as releasing a report discussing how the U.S. could counter North Korean capabilities. https://www.defensenews.com/pentagon/2019/01/11/what-to-look-for-in-the-upcoming-missile-defense-review

  • COVID-19 Forces USN To Expedite USAF Workshare Agreement

    April 28, 2020 | International, Aerospace

    COVID-19 Forces USN To Expedite USAF Workshare Agreement

    Lee Hudson The U.S. Navy has expedited its component workshare agreement with an Air Force aviation depot because of coronavirus-related workforce shortages. Fleet Readiness Center East (FRCE) located in North Carolina was initially scheduled to begin working on a Boeing F-18 cabin safety valve later this year while the Oklahoma City Air Logistics Complex's test chamber was closed for scheduled maintenance. But the time line was accelerated when Tinker AFB in Oklahoma had a significant number of workers unavailable due to COVID-19 risk mitigation efforts. The cabin safety valve is an integral part of the aircraft's environmental control system, Mary Linton, an aerospace engineer on the Gas Turbine Compressor-Pneumatics Fleet Support Team at FRCE, said in an April 27 statement. The valve is a component on both legacy F/A-18 Hornets and newer Super Hornets that acts as a backup to maintain cabin pressure above 23,000 ft. The part also serves as a supplement to the cabin air pressure regulator when the aircraft is in a rapid dive. “The original intent of bringing this workload to FRCE was to support Tinker Air Force Base through a major support equipment rework effort,” Linton said. “All of the great effort that went into establishing this capability proved even more critical to maintaining the readiness of the F-18 fleet as we navigate through the COVID-19 crisis.” The FRCE team was prepared to begin repairing, checking and testing the cabin safety valves in May, beginning with 20 per month before getting to a monthly rate of 40 by July, said John Miller, a planner and estimator with the Maintenance, Repair and Overhaul Logistics department at FRCE. To date, FRCE has completed 18 of the 40 units inducted so far, with plans to funnel 10 more into the pipeline. Once those first units are completed, the team must wait for additional valves to maintain the workflow. “The availability of components is still in flux due to COVID-19 and other factors, but the transition should move smoothly,” Miller said. https://aviationweek.com/defense-space/budget-policy-operations/covid-19-forces-usn-expedite-usaf-workshare-agreement

  • Lockheed still working with US government on F-35 jet

    June 21, 2023 | International, Aerospace

    Lockheed still working with US government on F-35 jet

    U.S. defense contractor Lockheed Martin said on Wednesday it was continuing to work with the government on capability and performance upgrades for its F-35 jets.

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