16 mai 2018 | International, Aérospatial

The US Air Force Is Adding Algorithms to Predict When Planes Will Break

The airlines already use predictive maintenance technology. Now the service's materiel chief says it's a “must-do for us.”

The U.S. Air Force has started to use algorithms to predict when its aircraft will break, part of an effort to minimize the time and money they consume in the repair shop. The use of predictive analytics has been blazed by airlines, which monitor their fleets' parts in an effort to replace broken components just before — and crucially, not after — they break.

“I believe it is a must-do for us,” said Gen. Ellen Pawlikowski, the head of Air Force Materiel Command, the arm of the Air Force that oversees the maintenance of its planes. She spoke Tuesday at a Defense Writers Group breakfast in Washington. “We see this as a huge benefit.”

If the Air Force could reduce the risk of unexpected breakage — and the attendant need to fly replacement parts and repair crews around the globe — it could reduce costs and boost mission effectiveness. It could also increase the usefulness of the current fleet by reducing the number of aircraft that need to be be held in reserve as backups.

It starts with gathering data, such as the temperature of engine parts or the stresses on the airframe.

“We are trying to leverage what we already get off of airplanes, as opposed to trying to go in and put instruments in places,” Pawlikowski said. “It turns out there's quite a bit that's there, but it may not be a direct measurement. In order to measure the temperature in this one particular spot, I'm getting information somewhere else.”

Artificial intelligence and machine learning can then determine patterns.

The general said the Air Force has been learning a lot from Delta, the world's second-largest commercial airline. “Delta has demonstrated the effectiveness of predictive maintenance in dramatically reducing the number of delays to flights due to maintenance,” she said.

Over the past three years, Air Mobility Command — the arm of the Air Force that oversees all of its large cargo planes and aerial refueling tankers — has been organizing the data it collects on some of its planes. It has started using the predictive maintenance technology on its massive C-5 airlifters.

The Air Force is also using the technology on the B-1 bomber. “The B-1 is an airplane that we actually bought with a whole bunch of data that we weren't using,” Pawlikowski said. “We started to take that data in and start to analyze it....We're very excited about this because we see huge potential to improve aircraft availability and drive down the cost.”

She said she “was impressed when I saw some of the data that they were showing me.”

The Air Force Lifecycle Management Center, which reports to Pawlikowski, has been funding these trials “by finding the loose change in the seat cushions,” she said.

“As we have now shown some things ... we're seeing more and more interest in it and we're looking at increasing the investment in that to bring it further,” Pawlikowski said of the predictive maintenance.

Last September, Gen. Carlton “Dewey” Everhart, head of Air Mobility Command, stressed his desire to use predictive maintenance, but warned it would cost money to get the datafrom the companies that make the planes.

“In some cases, we'll be working this collaboratively with our industry partners,” Pawlikowski said Tuesday. “In other cases, we'll be doing it completely organically.”

Air Mobility Command is also using predictive maintenance technology on the C-130J airlifter. The latest version of the venerable Lockheed Martin cargo plane — the J model — collects reams of data as it flies. In April, the Lockheed announced it was teaming with analytics firm SAS to crunch that data.

“Everything we've been doing up to a certain point has been looking in the rear-view mirror with the data,” said Lockheed's Duane Szalwinski, a senior manager with his company's sustainment organization who specializes in analytics. “We're going to be able to look forward.”

Lockheed is working on a six-month demonstration for Air Mobility Command; officials hope to be able to predict when certain parts will break before a flight.

“If we're able to do that, it kind of changes the game in how you maintain and operate a fleet,” Szalwinski said.

The data will give military planners a wealth of information about their aircraft that could help determine the best aircraft to deploy. “All those things you now know you have insights as to what you will need at the next flight, so you act accordingly,” he said.

“Once we prove that we understand the probability of failure of these parts ... all things then become possible,” Szalwinski said. “Now it's not a matter of if, it's a matter of when. And if you know when, you can start acting accordingly. It would be a gamechanger in the way you manage a fleet.”

Lockheed also wants to use the predictive maintenance tech on the F-35 Joint Strike Fighter.

“The beauty of this is that the toolsets that we're developing, the models, how we clean the data, how we build the models, how we build the algorithms, all of that is not unique to a platform,” Szalwinski said.

Still, instituting predictive maintenance practices fleet-wide is not going to happen overnight, particularly as since it will take time to understand the data, Pawlikowski said.

Using this technology will require a cultural shift among maintenance crews because they'll be replacing parts before they actually fail, Pawlikowski said.

“One of the big benefits is the reduction in the amount of time the airmen on the flightline spends troubleshooting a broken part” because “we will take them off before they break,” she said.

https://www.defenseone.com/business/2018/05/us-air-force-adding-algorithms-predict-when-planes-will-break/148234/

Sur le même sujet

  • Drones are now a permanent part of the LAPD’s arsenal

    20 septembre 2019 | International, Aérospatial, Sécurité

    Drones are now a permanent part of the LAPD’s arsenal

    By CINDY CHANG Drones became a permanent part of the Los Angeles Police Department's crime-fighting arsenal Tuesday, despite opposition from privacy advocates who fear the remote-controlled aircraft will be used to spy on people. In a yearlong trial, the LAPD's SWAT team deployed drones four times, mostly when suspects were barricaded and the device provided a bird's eye view of the property's nooks and crannies. On Tuesday, the five-member civilian Police Commission unanimously approved new regulations that enshrine the drones' use in specific situations, including active shooters, barricaded suspects and search warrants. The drones will not be equipped with weapons or facial recognition software, according to the regulations, which are similar to those governing the trial program. In July, at Chief Michel Moore's recommendation, the use of drones was expanded beyond SWAT to include the bomb squad in neutralizing explosives and sweeping large public events for radioactive devices. Drones “provide invaluable information to decision makers while decreasing the risk to human life,” Moore wrote in a July 3 report, noting that everyone is safer when the devices check out a dangerous situation instead of officers going in blind. The LAPD joins about 600 other law enforcement agencies around the country that use drones, according to a 2018 report by Bard College's Center For the Study of the Drone. The new regulations will ensure that the drones are not “being used in a flippant manner,” Asst. Chief Horace Frank, who runs the department's counter-terrorism and special operations bureau, told the Police Commission on Tuesday. The LAPD's drone regulations are more restrictive than those of many other agencies, Frank said. Each drone deployment must be approved by a commander and a deputy chief, and the Police Commission will receive an annual report. Asked by Commissioner Eileen Decker whether drones can help de-escalate volatile situations, Frank cited a June 15 incident when a drone flew near a man who had barricaded himself in a trucking yard. “The minute we deployed the device at the entrance to the trailer and he saw it, he gave up,” Frank said. Activists said the LAPD and Police Commission have disregarded citizens who expressed reservations about the drones in community meetings and online surveys. One activist, Michael Novick, predicted that the LAPD would expand drone usage and infringe on civil liberties. “We're witnessing the exact definition of mission creep,” Novick said. “Now you're upgrading. You approved a temporary pilot project. You're going to normalize it with this step. ... The next step will be they'll come back and say, ‘We actually need the ability to have facial recognition.'” The LAPD's drone fleet will remain at four strong, Frank said. But the DJI Spark devices used in the pilot program will be replaced by DJI Mavics, which have better indoor flying capabilities, extended flight time and lights for navigating in the dark. The models are similar to those used by hobbyists. The Police Commission accepted a $6,645 donation from the Los Angeles Police Foundation to purchase the Mavics, as well as a donation of drone flight tracking software from Measure Aerial Intelligence. As the commission approved the drone regulations and donations, the audience broke into chants of “Shame! Shame!” Moore said he is mindful of “concerns of Big Brother and invasion of privacy and civil liberties.” “We're committed to striking the right balance that ... protects all of our community — their rights of privacy but also their public safety and their right to exist without threats of dangers that this tool can be used in some instances to mitigate,” he told reporters after the meeting. https://www.latimes.com/california/story/2019-09-10/drones-are-now-a-permanent-part-of-the-lapds-arsenal

  • Poll: Germans, Americans far apart on use of military, defense spending

    11 mars 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

    Poll: Germans, Americans far apart on use of military, defense spending

    By: Sebastian Sprenger COLOGNE, Germany — Germans and Americans remain far apart on defense issues, ranging from when to use the military, how much to spend on defense and which country poses a bigger challenge — Russia or China — according to a new study unveiled Monday. “Three years into a turbulent period of American-German relations, with Donald Trump at the helm of American foreign policy and Angela Merkel leading Germany, there continues to be a wide divergence in views of bilateral relations and security policy between the publics of both countries,” said a Pew Research Center study published in cooperation with Koerber Stiftung, a German think tank. The two organizations each polled about 1,000 adults in September 2019 in the United States and Germany. Also included in the data are results from Pew's “global attitudes” survey conducted in both countries during the spring and summer of 2019. The results are unlikely to surprise anyone following trans-Atlantic relations, but they put into perspective why deep-seated differences persist in crafting a more coherent political show of force between the two nations. While roughly 80 percent Americans believe that using military might is sometimes necessary to maintain order in the world, Germans were almost split evenly on the same question, with a slight majority disagreeing. On the question of defending a fellow NATO ally against Russia in the event of a conflict, 6 in 10 Americans said the United States should help, whereas 6 in 10 German respondents said their country should not get involved. At the same time, Germans saw the United States high up in the list of key foreign policy allies, much higher than Americans viewed Germany. Asked to name their most or second-most important partner, 42 percent of Germans mentioned the United Sates, surpassed only by the their top choice of France, at 60 percent. For Americans, the British ranked highest on the same question, at 36 percent, followed by China (23 percent), Canada (20 percent) and Israel (15 percent). “One area of convergence is the broad support in both the U.S. and Germany for more cooperation with France and Japan. And similar majorities in the U.S. and Germany want to cooperate more with China,” the study read. As for cooperation with Russia, “Germans are almost twice as likely as Americans to want greater collaboration,” it added. When it comes to defense spending, 35 percent of Americans felt that Europeans should up their military budget, with 50 percent saying it should stay the same and 9 percent saying it should decrease. In 2017, the share of Americans wanting an increase was 45 percent. In Germany, the acceptance for defense budget increases has grown since 2017, when only 32 percent of those polled voiced support and 50 percent wanted it to remain the same. In 2018, 43 percent of respondents supported an increase. At the mid-February Munich Security Conference, much was made about the European Union's need to “learn to use the language of power,” as Josep Borrell, the bloc's defense and foreign policy chief, put it. That, of course, would cost money. Germans have traditionally frowned upon that kind of talk, though there is an increasing awareness of geopolitical perils in the wake of Russia's annexation of Crimea in 2014, Jeffrey Rathke, president of the American Institute for Contemporary German Studies at Johns Hopkins University, said in an interview last month. “Germany has been able to get by with its rhetorical response to the deteriorating security environment,” he said. “Now it's increasingly obvious that that is no longer enough.” While the country has significantly upped its defense spending, sensitizing the public for operational contributions to Europe's security will be a crucial next step for this government and the next, Rathke argued. The Pew and Koerber figures point to a generational change in the general attitudes of Germans and Americans about one another. “Despite these divergences in opinion, young people in both countries have more positive views of the U.S.-German relationship,” the study read. “In the U.S., for example, 82 percent of people ages 18 to 29 say the relationship is good, compared with 73 percent of those ages 65 and older. Similarly, in Germany, four-in-ten young people say relations with the U.S. are good, compared with only 31 percent of those 65 and older.” Notably, the two countries' militaries enjoy a much closer level of cooperation than the political discourse suggests, especially during the Trump administration, a fact that officials in both countries keep stressing when the tone between Berlin and Washington turns particularly icy. “There is an instinctive perception in the German public to defense matters anchored in Europe and the trans-Atlantic alliance,” Rathke said. https://www.defensenews.com/global/europe/2020/03/09/poll-germans-americans-far-apart-on-use-of-military-defense-spending/

  • UK AS90 turret trainer achieves remarkable 100,000 firings milestone

    18 août 2023 | International, Terrestre

    UK AS90 turret trainer achieves remarkable 100,000 firings milestone

    Significant milestone has been achieved by the British Army's AS90 training system. This groundbreaking system has recently completed 100,000 simulated firings.

Toutes les nouvelles