DARPA开发“海上列车”中型无人舰船分布式编队远程作战能力(英文)

2020-06-02 智邦网

编译 致远

据c4isrnet网2020年6月1日报道,DARPA提出“海上列车”(Sea Train )概念,促进中型无人舰船在分拆进行独立操作之前无需加油就可横跨大洋航行。

具体场景:均无操作人员的4艘美海军中型舰船从美国海岸港口出发,离岸约15海里处,4艘船会合并自动排列成一条线。

使用自定义机制,它们相互连接形成一列火车,在自主状态下航行6500海里,横跨大洋到达东南亚。

接近目的地时,每艘无人舰船断开连接,独立展开行动,如用各种舰载传感器收集数据。行动结束后,4艘舰船重新组合成列车整体返航。

DARPA Sea Train 项目主任安德鲁·努斯说,正在投资开发相关技术,以推动Sea Train 项目变为现实·。项目旨在开发和演示中型战术无人舰船分布式编队远程部署能力。

该局今年2月发布公告, 选择供应商。.Sea Train 项目计划两个18个月周期,承包商将研制和试验能实现海上列车概念的技术。

All aboard the Sea Train!

Imagine the following scenario.

Four medium-sized U.S. Navy vessels depart from a port along the United States’ coast. There’s no crew aboard any of them.

About 15 nautical miles off the coast, the four vessels rendezvous, autonomously arranging themselves in a line. Using custom mechanisms, they attach to each other to form a train, except they’re in the water and there’s no railroad to guide them. In this configuration the vessels travel 6,500 nautical miles across the open ocean to Southeast Asia. But as they approach their destination, they disconnect, splitting up as each unmanned ship goes its own way to conduct independent operations, such as collecting data with a variety of onboard sensors.

Once those operations are complete, the four reunite, form a train and make the return journey home.

This is the Sea Train, and it may not be as far-fetched as it sounds. The Defense Advanced Research Projects Agency is investing in several technologies to make it a reality.

“The goal of the Sea Train program is to be able to develop and demonstrate long-range deployment capabilities for a distributed fleet of medium-sized tactical unmanned vessels,” said Andrew Nuss, DARPA’s program manager for Sea Train. “So we’re really focusing on ways to enable extended transoceanic transit and long-range naval operations, and the way that we’re looking to do that is by taking advantage of some of the efficiencies that we can gain in a system of connected vessels — that’s where the name ‘Sea Train’ comes from.”

According to DARPA, the current security environment has incentivized the Navy and the Marine Corps to move from a small number of exquisite, large manned platforms to a more distributed fleet structure comprised of smaller vessels, including unmanned platforms that can conduct surveillance and engage in electronic warfare and offensive operations.

While these unmanned vessels are smaller and more agile than their large, manned companions, they are limited by the increased wave-making resistance that plagues smaller vessels. And due to their size, they simply can’t carry enough fuel to make the long-range journeys envisioned by DARPA without refueling.

By connecting the vessels — physically or in a formation — the agency hopes the Sea Train can reduce that wave resistance and enable long-range missions.

In February, the agency released a broad agency announcement to find possible vendors. Citing agency practice, Nuss declined to share how many proposals were submitted, although he did say there was significant interest in the announcement. The agency completed its review of any submissions and expects to issue contracts by the end of the fiscal year.

Sea Train is expected to consist of two 18-month periods, where contractors will work to develop and test technologies that could enable the Sea Train concept. The program will culminate with model testing in scaled ocean conditions.

If successful, DARPA hopes to see the technologies adopted by the Navy for its unmanned platforms.

“What we’re looking to do is be able to reduce the risk in this unique deployment approach,” Ness said. “And then be able to just deliver that set of solutions to the Navy in the future, to be able to demonstrate to them that there is, potentially, a new way to deploy these vessels, to be able to provide far more operational range without the risk of relying on actual refueling or in-port refueling.”

And while DARPA’s effort is focused on medium-sized unmanned vessels — anywhere from 12 to 50 meters in length — the lessons learned could be applied to larger or smaller vessels, manned or unmanned.


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