Defense

June 13, 2014

Sophisticated simulations help provide improved weapons faster, cheaper

Tags:
Ed Lopez and Cassandra Mainiero
Picatinny Arsenal, N.J.

Five screens can display a 300-degree view of realistic scenarios, which can be customized to meet the specific needs of individual projects.

 
As engineers design new weapons or modify existing ones, reducing time and money on development can be critical in providing Soldiers with improved weapons without undue delay.

A new sight may be planned for the M4 rifle, but how well does a prototype design work, and where would be the best place to mount it for the best accuracy and ease of use? Or new, non-lethal weapons may be needed, but will they perform as expected at different ranges?

Using a combination of artificial intelligence, cameras and computers loaded with ballistics data, engineers at Picatinny Arsenal have developed a testing environment that can help to answer many critical questions about the performance of existing weapons and new ones planned.

“People are surprised how realistic our simulated environments look,” said Keith Koehler, a mechanical engineer at the Weapons Technology Branch, part of the Weapons Software Engineering Center. “We had a few friends, who were deployed Soldiers, walk into the scenarios and you could tell to a degree that they lost themselves in the environment.”

The Simulated Weapon Environment Testbed, called SWeET for short, can project custom interior and outdoor scenarios for weapons evaluation. It can also project any weather (rain, snow, sunny, foggy, etc.), location (indoor, outdoor, towns, cities, rooms, jungle, etc.) or time of day onto its five screens, allowing up to four users per screen.

While it can take a few weeks to program new environments into the software, gathering data is instantaneous and records details such as target response, user response, reaction time, and target distance during each simulation.

SWeET works with unmodified weapons – only bolts and magazines are swapped. Compressed air or CO2 is used to simulate recoil.

Weapons that can be currently tested in SWeET are the M4, M11, M9, M16, M249, M240 and weapon accessories. With five cameras and computers behind the screens that display simulated scenarios – and a sixth computer that controls them all – realistic projectile ballistics and travel/impact effects are captured.

Other cameras, placed above the five screens that project a 300-degree view, can monitor a Soldier’s movements and reactions during the various scenarios.

A major advantage of SWeET is that, because it can capture vast amounts of data with prototypes of new weapons, the costs related to manufacturing multiple weapons during the development phase can be greatly reduced.

“Users can come here and test a weapon or the new ammunition before it is even made,” said Clinton Fischer, a mechanical engineer, also with the Weapons Technology Branch. “In traditional development, they would have to first manufacture the weapon or the ammunition for it – and because there is no production line for it – it could be a thousand dollars a round,” Fischer added. “Here, we just make it, shoot, and get data.”

From left, Picatinny Arsenal engineers Keith Koehler, Clint Fischer and James Snover have worked on the Simulated Weapon Environment Testbed project, which uses a combination of artificial intelligence and sophisticated computer-data capture to reduce the time and cost associated with developing or modifying weapons systems.

However, because SWeET projects virtual environments onto two-dimensional screens, Fischer and Koehler also note that scope (or depth) can sometimes be difficult to mimic.

In addition, though testing the weapon’s recoil is safer with SWeET than other testing systems, the recoil simulation is only about 90 percent accurate. Still, overall feedback on SWeET, with its speedy data output and realism, remains positive.

“We had some soldiers come in and verify that our ranges were accurate,” said Koehler. “We would pull up a target at 348 meters and ask ‘How far away did this guy look to you?’ and they say ‘350 meters.’ So, even we didn’t expect that kind of realism.”

In the future, Fischer and Koehler plan to add new simulated weapons to the test bed, such as the M2 heavy barrel machine gun and the Mk19 grenade machine gun.

“There are lots of simulators out there, but they’re limited in their capability and each one is made to train a specific situation,” Koehler said. “One may train how you work in a squad; another is how to train your weapon, or something else. There are simulators for research and development to get information, but they are also limited. With SWeET, we’re trying to take all those types of simulations and combine them. I don’t think there is anything out there yet that can test all these capabilities.”




All of this week's top headlines to your email every Friday.


 
 

 

Headlines August 1, 2015

News: Marine F-35 jets deemed ready for combat – A small batch of the highly anticipated – and much criticized – F-35B Joint Strike Fighter jets have been approved for combat by the U.S. Marine Corps.   News: Reports: China to sell J-10 fighter to Iran, Syria? – Iran is rumored external link to be buying 150...
 
 

News Briefs August 3, 2015

Russian military helicopter crashes during air show, one dead A Russian military helicopter crashed Aug. 2 during an aerobatic display, killing one of its crewmembers and injuring another, the Defense Ministry said. The Mi-28 helicopter gunship was part of a flight of helicopters performing aerobatics at the Dubrovichi firing range in Ryazan region, about 170...
 
 
Army photograph by John Andrew Hamilton

Improved Multiple Launch Rocket System tested at White Sands Missile Range

Army photograph by John Andrew Hamilton A Multiple Launch Rocket System with an improved armored cab fires a training rocket during a test. The rockets were simple training rockets and not equipped with a warhead, but still gen...
 

 

Missile Defense Agency, Raytheon demonstrate SM-6’s new anti-ballistic missile defense capability

In a first-of-its-kind test, the U.S. Navy fired a Raytheon Standard Missile-6, intercepting and destroying a short-range ballistic missile target at sea. The successful U.S. Missile Defense Agency test proved a modified SM-6 can eliminate threat ballistic missiles in their final seconds of flight. “SM-6 is the only missile in the world that can do...
 
 

Northrop Grumman-developed stealthy data link validated as combat ready with U.S. Marine Corps

the U.S. Marine Corps achieving F-35B initial operating capability, the Multifunction Advanced Data Link waveform developed by Northrop Grumman has been proven a key combat-ready capability of the F-35 Lightning II program. MADL is a high-data-rate, directional communications link that allows fifth-generation aircraft to communicate and coordinate tactics covertly. During testing of the Lockhee...
 
 

Lockheed Martin technology helps pilots, UAS operators share data, stay safe

As Unmanned Aircraft Systems take to the skies, it is essential for safety that UAS operators and pilots are aware of each other. To help provide this shared situational awareness, Lockheed Martin has deployed the first components of a UAS traffic management system that is available to the UAS community now. Lockheed Martin’s online Flight...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>