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Northrop Grumman reports that the United States Minuteman III Sentinel ICBM replacements have passed critical shroud release and vibration tests.
Northrop Grumman has completed vital tests of some key elements of its planned ground-based intercontinental ballistic missile Sentinel system, the defense contractor reports. These tests represent a crucial milestone in the planned modernization of this critical part of the United States' aging existing nuclear deterrent "triad."underwent a series of tests at the company's Strategic Missile Test and Production Complex in Promontory, Utah.
Northrop Grumman is working closely with the Air Force to achieve key milestones during the EMD phase.The shroud of a missile or spacecraft is a cover that shields the payload, such as a warhead or a satellite, during its launch and flight through the atmosphere. Tests on this system help ensure that the shroud can separate successfully from the missile or spacecraft once it has exited the atmosphere or reached a certain altitude where protection is no longer required.
This includes identifying its natural frequencies, mode shapes, and damping ratios. Understanding these aspects is crucial to ensure the missile's structural integrity during the launch, flight, and re-entry phases. Vibrations can be caused by engines, aerodynamic forces, and other external factors. Knowing how the missile responds to these vibrations is essential for its design and reliability.
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