14 janvier 2021 | International, Naval

For the US Navy, the future of shipbuilding (and warfare) is in the power plant

By:

WASHINGTON — The U.S. Navy wants to buy a next-generation large surface combatant by the end of the 2030s, but its not being built for a new kind of sensor or weapon system. The newly dubbed DDG(X) is being built for power.

The Navy has, of course, built ships around advancements in engineering systems before: Nuclear power or steam engines, for example, have led to big leaps in naval design. But the large surface combatant is being built around a significant challenge. Weapons systems of the future such as high-powered electronic warfare systems, laser weapons, and high-powered radars and sensors will put an uneven and sometimes even unpredictable load on a ship's power system.

That's pushing the Navy toward an integrated power system, says Rear Adm. Paul Schlise.

“We're going to incorporate an Integrated Power System that has the ability to power up the weapons and sensors of the future,” Schlise said during the Surface Navy Association's virtual annual symposium. “[That's] the key to the realm here. It's DDG-1000-like, in some respects in that it'll have that integrated power system, but the most important thing is including the space, weight, power and cooling — reestablishing those margins to incorporate future systems that are not yet mature.

“There's a lot of promise in some of those systems, but that integrated power system is the key to incorporating those feature systems that we're looking at, that we think are going to be part of that class of ship.”

What is an integrated power system?

Mark Vandroff, a former senior director of the National Security Council and a retired Navy captain who was the program manager for the Navy's new DDG Flight III program, said it's a major break from the kind of system used on Arleigh Burke-class destroyers.

“A major advantage of a ship with an integrated power system is that the power generated by any of the ship's engines can be used for either propulsion or electricity, rather than having engines solely dedicated to one or another.”

On today's destroyer, and on the Ticonderoga-class cruisers, the ship has separate systems that power the twin propulsion shafts, which turn the ship's propeller and generators that work exclusively to power the ship. An integrated power system, similar to what is on the Zumwalt-class destroyers, uses all the ship's engines to make electricity that turns the propellers and powers the weapons and sensors.

The integrated power system on Zumwalt is a new layout that uses advanced induction motors to produce up to 78 megawatts of electrical power, far more than any previous destroyer or cruiser.

But the issue with the large surface combatant is a little more complicated than just producing a ton of power. What energy weapons or advanced electronics systems do is put a huge tax on the electrical system of a ship, often requiring more power than the ship is able to produce at one time.

So while the integrated power system isn't new, the kinds of demands these new systems will place on the power grid meant to run everything is a new kind of challenge, said Matthew Collette, associate professor of naval architecture and marine engineering at the University of Michigan.

Therefore, the Navy must figure out how to best store energy so it can be available to meet unpredictable demands.

“The issue is, this is different than integrated electric propulsion, which we've had on cruise ships and offshore supply vessels for two decades at this point, and it works really well,” Collette said. “But on those ships, all the electrical loads are pretty well behaved: They rise and fall slowly, and there's no issues with the stability of the electrical system.

“High-powered radars, high-powered electronic warfare, certainly rail guns, the lesser extent lasers — they all ask for power really quickly, faster than a mechanical generator can suddenly produce it. So now you have to think about whether [you] use batteries or flywheels or capacitors or other techniques to get the energy available on the timescale that the load needs.”

It's not an insurmountable problem, and it is one the Navy has used elsewhere. The electromagnetic launch system on the Ford-class, which has had its share of technical problems, operates off a flywheel energy storage system. But the new power system already has Congress nervous, and lawmakers are pressuring the Navy to build a land-based engineering site to test out the power and propulsion system before getting too deep into the design work for the ship.

Collette said that's a sensible approach, and that on the timeline the Navy is discussing, the technology should be sufficiently advanced to support the new class.

“There's been a ton of work done on this, and I think it's certainly something that in the timeframe of a large surface combatant, I would expect would work,” he said.

https://www.defensenews.com/digital-show-dailies/surface-navy-association/2021/01/13/for-the-us-navy-the-future-of-shipbuilding-and-warfare-is-in-the-power-plant

Sur le même sujet

  • Raytheon and Rafael to build Iron Dome in US

    4 août 2020 | International, Aérospatial, Naval, Terrestre

    Raytheon and Rafael to build Iron Dome in US

    By: Jen Judson WASHINGTON — American firm Raytheon Technologies and Israeli-based Rafael Advanced Defense Systems have formed a joint venture to build the Iron Dome missile defense system in the United States, the companies announced Aug. 3. Under the name Raytheon Rafael Area Protection Systems, the partnership is being set up to build a first-ever Iron Dome “all-up-round” facility stateside. The facility will build Iron Dome systems, the Tamir interceptor and launcher, and the SkyHunter missile (the U.S. version of Tamir), according to a Rafael-issued statement. Tamir and SkyHunter are capable of intercepting cruise missiles, unmanned aircraft, rockets, artillery, mortars and other threats. The partnership expects to finalize a site location before the end of the year, the statement said. “This will be the first Iron Dome all-up-round facility outside of Israel, and it will help the U.S. Department of Defense and allies across the globe obtain the system for defense of their service members and critical infrastructure,” Sam Deneke, vice president of Raytheon Missiles & Defense's land warfare and air defense business. Rafael and Raytheon have had a long partnership developing and manufacturing Iron Dome. The system is widely fielded in Israel and, according to Rafael, is “the world's most-used system with more than 2,500 operational intercepts and a success rate exceeding 90 percent.” The U.S. Army has chosen Iron Dome as an interim capability to counter cruise missiles while it continues to develop a future Indirect Fires Protection Capability, or IFPC, to counter those threats as well as enemy drones, rockets, artillery and mortars. Congress mandated the service buy two batteries to cover urgent cruise missile defense gaps, and another set of two if the Army didn't come up with a way forward for its enduring IFPC. While the Army has said it will not buy all-up Iron Dome systems as part of the IFPC program, officials developing the capability are looking at the possibility of incorporating parts of Iron Dome in the final solution. The Army plans to field Iron Dome by the end of the year, but it will still take time to train troops on the system before deployment. Some lawmakers are urging the Army to rapidly deploy the systems to the Middle East, arguing U.S. and coalition forces there need the protection from Iran and its proxies. In and analysis conducted by the Army, it was concluded the Iron Dome launcher and the Tamir interceptor's performances are “highly reliant” on their own battle management systems and multimission radars. The analysis also determined that the launcher and interceptor would be a viable option for an enduring IFPC solution as long as it worked on the Army's future Integrated Air-and-Missile Defense Battle Command System, or IBCS, which is under development, according to a report sent to Congress earlier this year. But Gen. Mike Murray, the head of Army Futures Command, which is in charge of the service's modernization efforts, testified before the House Armed Services Committee earlier this year that the Army has struggled to integrate Iron Dome into its IBCS system, mostly because the Israeli government has refused to provide critical source code needed for the integration. The Tamir interceptor's performance data proves its effectiveness when used within the Iron Dome system, but since data is lacking, it's uncertain how well it would perform when linked through IBCS to the Sentinel radar, which is used to alert air defense weapons of threats, the report noted. The service will conduct a shoot-off of best available options for integration into an enduring IFPC solution in the third quarter of fiscal 2021. The U.S. Marine Corps is also evaluating the system. https://www.defensenews.com/land/2020/08/03/raytheon-and-rafael-to-build-iron-dome-in-us/

  • Contract Awards by US Department of Defense - December 14, 2018

    17 décembre 2018 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

    Contract Awards by US Department of Defense - December 14, 2018

    DEFENSE LOGISTICS AGENCY Spacelabs Healthcare Inc., Snoqualmie, Washington, has been awarded a maximum $450,000,000 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for patient monitoring systems, accessories and training. This is a five-year base contract with one five-year option period. This was a competitive acquisition with 36 responses received. Location of performance is Washington, with a Dec. 13, 2023, performance completion date. Using customers are Army, Navy, Air Force, Marine Corps and federal civilian agencies. Type of appropriation is fiscal 2018 through 2023 defense working capital funds. The contracting activity is the Defense Logistics Agency Troop Support, Philadelphia, Pennsylvania (SPE2D1-19-D-0008). OrthoScan, Scottsdale, Arizona, has been awarded a maximum $125,000,000 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for radiology systems, accessories and training. This is a five-year base contract with one five-year option period. This was a competitive acquisition with 50 responses received. Location of performance is Arizona, with a Dec. 13, 2023, performance completion date. Using customers are Army, Navy, Air Force, Marine Corps and federal civilian agencies. Type of appropriation is fiscal 2018 through 2023 defense working capital funds. The contracting activity is the Defense Logistics Agency Troop Support, Philadelphia, Pennsylvania (SPE2D1-19-D-0007). UPDATE: Moridge Manufacturing Inc., Moundridge, Kansas (SPE8EC-19-D-0031) has been added as an awardee to the multiple-award contract for commercial agricultural equipment, issued against solicitation SPE8EC-17-R-0007, announced May 18, 2017. NAVY Textron Inc., New Orleans, Louisiana, is awarded a $314,288,369 modification to previously awarded letter contract N00024-17-C-2480 for the procurement of additional long lead time material (LLTM) for the Ship to Shore Connector program, Landing Craft, Air Cushion (LCAC) 100 Class Craft 109 through 118, for the continuation of pre-fabrication activities for LCAC 109 through 112, and for the initial procurement of LLTM for LCAC 119 through 123. The SSC Program is the functional replacement for the existing fleet of vehicles, which are nearing the end of their service life. It is an Air Cushion Vehicle designed for a 30-year service life. The SSC mission is to land surface assault elements in support of Operational Maneuver from the Sea, at over-the-horizon distances, while operating from amphibious ships and mobile landing platforms. SSC provides increased performance to handle current and future missions, as well as improvements which will increase craft availability and reduce total ownership cost. Work will be performed in New Orleans, Louisiana (46 percent); Leesburg, Virginia (18 percent); Mandal, Norway (8 percent); Gloucester, United Kingdom (7 percent); Livonia, Michigan (7 percent); Cincinnati, Ohio (4 percent); Eatontown, New Jersey (2 percent); Gold Beach, Oregon (2 percent); Riverdale, Iowa (2 percent); Huntington Beach, California (2 percent); Metairie, Louisiana (2 percent), and is expected to be complete by July 2023. Fiscal 2017, 2018 and 2019 shipbuilding and conversion (Navy) funding in the combined amount of $235,716,277 will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, District of Columbia, is the contracting activity. Raytheon Missile Systems, Tucson, Arizona, is awarded a $149,435,507 cost-plus-incentive contract for the engineering, manufacturing, and development of Standard Missile-2 Block IIIC. Work will be performed in Tucson, Arizona (85 percent); Wolverhampton, England (6 percent); East Aurora, New York (6 percent); Middletown, Ohio (2 percent); and Englewood, Colorado (1 percent), and is expected to be completed by October 2022. Fiscal 2019 and 2018 research, development, testing and evaluation (Navy) funding in the amounts of $50,090,148 and $234,663 respectively will be obligated at time of award. Funding in the amount of $234,663 will expire at the end of the current fiscal year. This contract was not competitively procured in accordance with 10 U.S. Code 2304(c)(1) - only one responsible source and no other supplies or services will satisfy agency requirements. The Naval Sea Systems Command, Washington, District of Columbia, is the contracting activity (N00024-19-C-5412). Raytheon Co., Missile Systems, Tucson, Arizona, is awarded a $32,636,301 firm-fixed-price modification to previously awarded contract N00024-18-C-5432 for over-the-horizon weapon systems. Work will be performed in Kongsberg, Norway (75 percent); Tucson, Arizona (15 percent); Schrobenhausen, Germany (4 percent); Raufoss, Norway (3 percent); McKinney, Texas (2 percent); and Louisville, Kentucky (1 percent), and is expected to be complete by December 2020. Fiscal 2019 weapon procurement (Navy); fiscal 2019 research, development, testing, and evaluation (Navy); and fiscal 2019 other procurement (Navy) in the amount of $32,636,301 will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington Navy Yard, District of Columbia, is the contracting activity. Raytheon Missile Systems, Tucson, Arizona, is awarded a $32,162,533 cost-only contract for long lead material in support of fiscal 2019 Evolved Sea Sparrow Missile (ESSM) Block 2 low-rate initial production requirements. The ESSM program is an international cooperative effort to design, develop, test, and procure ESSM missiles. The ESSM provides enhanced ship defense. This contract combines purchases for the Navy (43 percent); and the governments of Canada, Australia, Germany, Norway, Turkey, the Netherlands, and Denmark under the NATO Sea Sparrow Consortium. Work will be performed in Raufoss, Norway (47 percent); Mississauga, Canada (32 percent); and Richmond, Australia (21 percent), and is expected to be complete by December 2022. Fiscal 2017 and 2018 other procurement (Navy); fiscal 2018 and 2019 weapons procurement (Navy); and non-expiring Other Funds funding in the amount of $21,991,327 will be obligated at time of award and funds in the amount of $216,649 will expire at the end of the current fiscal year. This contract was not competitively procured in accordance with the authority 10 U.S. Code 2304 (c)(4). The Naval Sea Systems Command, Washington, District of Columbia, is the contracting activity (N00024-19-C-5418). Raytheon Missile Systems, Tucson, Arizona, is awarded a $24,717,120 cost-only contract for long lead material in support of fiscal 2019 Evolved Sea Sparrow Missile (ESSM) Block 1 production and spares requirements. The ESSM program is an international cooperative effort to design, develop, test, and procure ESSM missiles. The ESSM provides enhanced ship defense. This contract includes foreign military sales to the kingdom of Saudi Arabia. Work will be performed in Raufoss, Norway (44 percent); Mississauga, Canada (34 percent); and Richmond, Australia (22 percent), and is expected to be complete by December 2021. Foreign military sales funding in the amount of $23,846,439 will be obligated at time of award and will not expire at the end of the current fiscal year. This contract was not competitively procured in accordance with the authority 10 U.S. Code 2304 (c)(4). The Naval Sea Systems Command, Washington, District of Columbia, is the contracting activity (N00024-19-C-5410). Austal USA, Mobile, Alabama, has been issued a fixed-price-incentive firm target modification to a previously awarded contract (N00024-17-C-2301) to exercise options for the construction of two fiscal 2019 littoral combat ships (LCS). The Navy has not completed the competition for fiscal 2019 LCS class ships, therefore, the specific contract award amount for these ships is considered source selection sensitive information (see 41 U.S. Code 2101, et seq., Federal Acquisition Regulation (FAR) 2.101 and FAR 3.104) and will not be made public at this time. Austal USA will perform and oversee all necessary design, planning, construction, and test and trials activities in support of delivery of these ships to the Navy. Work will be performed in Mobile, Alabama (50 percent); Pittsfield, Massachusetts (24 percent); Cincinnati, Ohio (5 percent); Henderson, Washington (2 percent), Kingsford, Michigan (1 percent); Bristol, Connecticut (1 percent), Slidell, Louisiana (1 percent); and various other locations of less than 1 percent each (totaling 16 percent), and is expected to be complete by September 2025. Fiscal 2019 shipbuilding and conversion (Navy) funding will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, District of Columbia, is the contracting activity. ARMY AC FIRST LLC., Germantown, Maryland, was awarded a $129,918,292 modification (0002 37) to contract W52P1J-12-G-0048 for logistics support services, maintenance, supply, and transportation services. Work will be performed in Bagram, Afghanistan, with an estimated completion date of Dec. 21, 2019. Fiscal 2019 operations and maintenance, Army funds in the amount of $12,500,000 were obligated at the time of the award. U.S. Army Contracting Command, Rock Island Arsenal, Illinois, is the contracting activity. Harper Construction Co. Inc., San Diego, California, was awarded a $59,467,470 firm-fixed-price contract for construction of a reception barracks complex. Bids were solicited via the internet with two received. Work will be performed in Fort Sill, Oklahoma, with an estimated completion date of Dec. 14, 2020. Fiscal 2015 and 2016 military construction funds in the amount of $59,467,470 were obligated at the time of the award. U.S. Army Corps of Engineers, Tulsa, Oklahoma, is the contracting activity (W912BV-19-C-0003). Oshkosh Defense LLC, Oshkosh, Wisconsin, was awarded a $30,358,753 modification (P00001) to contract W56HZV-18-F-0153 for procurement of Family of Medium Tactical Vehicles. Work will be performed in Oshkosh, Wisconsin; and Liverpool, New York, with an estimated completion date of Dec. 31, 2020. Fiscal 2018 and 2019 other procurement, Army funds in the amount of $30,358,753 were obligated at the time of the award. U.S. Army Contracting Command, Warren, Michigan, is the contracting activity. Gary Kubiak & Son Electric Inc.,* Robbinsville, New Jersey, was awarded a $12,898,760 firm-fixed-price contract for repair of the electrical distribution system (Buildings 194-194 and main base area) for Joint Base McGuire-Dix-Lakehurst. Bids were solicited via the internet with five received. Work will be performed in Trenton, New Jersey, with an estimated completion date of Dec. 13, 2020. Fiscal 2019 operations and maintenance, Army funds in the amount of $12,898,760 were obligated at the time of the award. U.S. Army Corps of Engineers, Philadelphia, Pennsylvania, is the contracting activity (W912BU-19-C-0004). Lockheed Martin Corp., Orlando, Florida, was awarded a $10,219,884 hybrid (cost-plus-fixed-fee and firm-fixed-price) Foreign Military Sales (Qatar) contract for support services for the Modernized Target Acquisition Designation Sight/Pilot Night Vision Sensor for the Apache Attack helicopter. One bid was solicited with one bid received. Work will be performed in Orlando, Florida, with an estimated completion date of March 31, 2024. Fiscal 2019 foreign military sales funds in the amount of $10,219,884 were obligated at the time of the award. U.S. Army Contracting Command, Rock Island Arsenal, Illinois, is the contracting activity (W52P1J-19-D-0006). CORRECTION: The Nov. 8 announcement that Deloitte & Touche LLP, Arlington, Virginia, was awarded an $18,056,941 firm-fixed-price contract to provide a cyberspace analytics capability was announced early, and incorrectly stated the estimated date of completion and amount of obligated funds. The contract was actually awarded Dec. 12, 2018; the estimated date of completion is Nov. 11, 2023; and fiscal 2019 research, development, test and evaluation funds in the amount of $8,736,000 were obligated at the time of the award. All other information in the announcement was correct. AIR FORCE Peraton Inc., Herndon, Virginia, has been awarded a $65,615,581 cost-type term order for Xdomain technology through research, evolution, enhancement, maintenance, and support software and report. The scope of this effort is to provide engineering, programmatic and technical expertise, to include: requirements definition/analysis, research, systems engineering, software engineering, development testing, software integration, quality control, configuration management, system integration, interoperability testing, security analysis/implementation, lab-based security assessment testing support, system installation planning, system component procurement, on-site installation/configuration, site security assessment testing support, system familiarization, and system operational support. Work will be performed in Herndon, Virginia; and Rome, New York, and is expected to be completed by Dec. 15, 2023. This award is the result of a competitive acquisition and one offer was received. Fiscal 2019 research, development, test and evaluation funds in the amount of $250,000; and fiscal 2019 operations and maintenance funds in the amount of $72,615 are being obligated at the time of award. Air Force Research Laboratory, Rome, New York, is the contracting activity (FA8750-19-F-0003). Lockheed Martin Missiles and Fire Control, Orlando, Florida, has been awarded a $10,302,132 modification (P00001) to contract FA8682-19-C-0010 for Lot Two production of three Long Range Anti-Ship Missiles. Work will be performed in Orlando, Florida, and is expected to be completed by Feb. 28, 2020. The award is the result of sole-source acquisition. Fiscal 2018 research, development, test and evaluation funds will fund the contract. Air Force Life Cycle Management Center, Eglin Air Force Base, Florida, is the contracting activity. *Small business https://dod.defense.gov/News/Contracts/Contract-View/Article/1714535/source/GovDelivery/

  • Space Force, NRO launch ‘Silent Barker’ space observation satellites

    10 septembre 2023 | International, Aérospatial

    Space Force, NRO launch ‘Silent Barker’ space observation satellites

    The joint mission flew Aug. 29 on a United Launch Alliance Atlas V rocket from Cape Canaveral Space Force Base in Florida.

Toutes les nouvelles