EDWARD M BRENNAN
Engineers in Wenonah, NJ

8527193, Sep 3, 2013

Sep 14, 2012

13/617204

Edward M. Brennan - Wenonah NJ, US
Carl V. Jannetti - Huntingdon Valley PA, US
John B. Stetson - New Hope PA, US

Lockheed Martin Corporation - Bethesda MD

G05D 1/02, B63G 1/00, G01S 13/00, F41G 7/00, G01P 15/00

701300, 114 1, 342 26 C, 244 321, 7351401

A method is disclosed for determining relative motion between equipment systems positioned on a structure that is subject to deformation due to vibrations, using accelerometers. Relative motion between equipment systems can introduce error into the targeting information provided to a system such as a weapons system, and thus the method facilitates compensation for such relative motion. A method is disclosed in which the raw accelerometer signals are filtered, then combined with attitude signals in a displacement calculation module (DCM). Within the DCM, the signals are manipulated to calculate, for each equipment system, the translational and rotational displacements due to hull modal vibration and the translational and rotational displacements due to force vibration. The sum of these values represent the movement of each of the affected equipment systems. Relative motion between systems is calculated as the difference between the calculated movement values.

8296053, Oct 23, 2012

Oct 9, 2007

11/869283

Edward M. Brennan - Wenonah NJ, US
Carl V. Jannetti - Huntingdon Valley PA, US
John B. Stetson - New Hope PA, US

Lockheed Martin Corporation - Bethesda MD

G05D 1/02, F42B 15/01

701300, 244 321, 244 328

A system and method are disclosed for determining relative motion between ship-based combat system elements using accelerometers. Relative motion between combat system elements can introduce error into the targeting information provided to the weapons system, and thus the system facilitates compensation for such relative motion. The system includes accelerometers mounted on radar systems, inertial navigation system (INS) sensors, and weapons systems. An algorithm is disclosed in which the raw accelerometer signals are filtered, then combined with ship INS attitude signals in a displacement calculation module (DCM). Within the DCM, the signals are manipulated to calculate, for each combat system element, the translational and rotational displacements due to hull modal vibration and the translational and rotational displacements due to force vibration. The sum of these values represent the movement of each of the affected combat system elements. Relative motion between elements is calculated simply as the difference between the calculated movement values for each element.

7493868, Feb 24, 2009

Jul 13, 2006

11/485918

David B. Arnal - Cherry Hill NJ, US
Dana L. Day - Turnersville NJ, US
Edward M. Brennan - Wenonah NJ, US

Lockheed Martin Corporation - Bethesda MD

B63B 21/58, E02B 3/24, B63B 21/00, B63B 21/56, B63B 3/08, B63B 9/00, B63B 9/04

114249, 114250, 11423015, 11423017, 11423018, 11423019, 114 77 R, 114242

A system is provided for rigidly attaching a supply ship to a receiving ship to facilitate efficient transport of materials there-between even when the vessels are subject to heavy seas and weather. A telescoping truss assembly is provided on the first ship, and has a distal end configured to mate with a receptacle assembly on the second ship. Cables are disposed within the truss and are used to draw the truss and receptacle assemblies into engagement with each other. Once the assemblies are engaged, a hydraulic system is used to draw the two ships together, rigidifying the truss assembly and fixing the two ships in a “catamaran” arrangement. Subsequent transfers of materials between the ships can be carried out without the need to compensate for the relative dynamic vertical and horizontal displacements between the ships due to wind and waves.