Welcome to the SNAME Chesapeake Section

Our Events

  • Monday

    Chesapeake Section - Digital Twin in the U.S. Navy

    SNAME Section Meeting - Full

    Oct 28, 5:30 PM - 8:30 PM (ET)
    Marine engineers have long relied on model-based solutions as tools. The digital twin is just the latest to be leveraged by this community in the design, construction, optimization, maintenance, and sustainment of ships by providing various end users with an "as-is" virtual representation, continually updated with the latest data and information. By properly instrumenting the system and consolidating information throughout the service life, engineers no longer need to make assumptions about the state of the physical asset (e.g., wear on an engine, accumulated stress in the structure, or necessary maintenance) -- these effects are naturally incorporated into the twin as it is updated. These data and insights can then be stored and configuration managed as a product model, shared in a digital thread, and leveraged to answer questions about the asset. This talk will focus on what a digital twin is, the benefits it can bring to ships, and current US Navy investments in this space.

    Speaker Name & Bio
    Dr. David Drazen, Naval Surface Warfare Center Carderock Division

    Dr. David Drazen currently works as the Naval Surface Warfare Center Carderock Division's Digital Twin Program Manager and has spent over 10 years at Carderock. He coordinates the center's work in digital twin across the various technical departments and looks to connect various digital twin initiatives across the Navy Research and Development Enterprise. Prior to this role, he served for two years as a Staff Specialist for Energy and Power and Ground and Sea Platforms in the Office of the Undersecretary of Defense for Research and Engineering. He holds a Ph.D. in Physical Oceanography from Scripps Institution of Oceanography.

    Registration Fees
    Pre-registered SNAME YP: $30
    Pre-registered SNAME Member (over 35 y/o): $35
    Pre-registered Non-Member: $40

    Contact Information

    McLean, VA, United States


2019 Election Nominations

Chair - Mr. Benjamin Testerman

Mr. Benjamin Testerman is a Naval Architect in the Naval Architecture and Engineering Department of NSWC Carderock in West Bethesda, MD. During his career he has been involved in a variety of efforts including early stage ship design, vessel construction, and advanced shipboard technology development and transition efforts. Mr. Testerman graduated from Stevens Institute of Technology in 2009 with a Bachelor of Engineering and a concentration in Naval Engineering. Mr.Testerman currently serves as the Vice Chair of SNAME Chesapeake section and has held a leadership role within the section since 2011 having served as the Chesapeake Section Treasurer 2013-2018 and served as the Chesapeake Section Young Professionals Chair in the 2011 - 2012 term/

Vice Chair - Mrs. Margaret Nate
 Maggie Nate is currently a Survivability Engineer with Gibbs and Cox and has over 8 years of engineering experience.  Prior to joining G&C, Maggie had a variety of assignments in the area of ship survivability and test including  as a Senior Test Engineer supporting PMS377, the amphibious warfare program office.  She also previously worked for NASA Langley on lunar excursion module design in their Aerospace Research Summer Scholar Program and with AAI on the Shadow unmanned aerial vehicle program. Outside of work, Maggie is active in several professional societies, serving as the Associate Editor of Survivability for SNAME’s Journal of Ship Production and Design, is the Chair of the Post-Incident Safety Assurance Panel under SNAME’s Technical and Research Program, and has served as the Meetings Chair for SNAME Chesapeake Section for the past 3 years.  Maggie is a born and raised Virginian having grown up in Newport News and attended college in Blacksburg before settling in the Alexandria area.  She has degrees in Aerospace Engineering and Ocean Engineering with minors in Mathematics and Naval Engineering from Virginia Tech.  In her spare time Maggie enjoys triple integrals in spherical coordinates, attempting to teach her dog how to fetch (no such luck), and cheering on the Hokies every chance she gets.

Elected Member 2022 - Mr. Robert Ames
Bio: During his career, Bob Ames has pursued technical excellence in the field of software engineering for naval architecture and marine engineering applications.  He has significant technical achievements that are world recognized across many industries both inside and outside the marine industry. 

During his time with the Naval Surface Warfare Center – Carderock, Bob has acquired broad experience in ship and submarine platform design development, fluid dynamics, system design, computational science, computer science, cross-domain data integration, geometry, data modeling, gridding, optimization, designs of experiments, energy systems, ship arrangements, testing, model construction, computer aided design, computer numerical control, and computational validation.   

Bob is world renowned for his work in computational sciences related to multidisciplinary integration of engineering tools through theories in modeling that he developed; and one that was patented related to geometry modeling.  This patent technology is fundamental to the multi-domain integration software development framework called Leading Edge Architecture for Prototyping Systems (LEAPS).   

Through his knowledge of object oriented programming, Unified Modeling Language (UML), and System Modeling Language (SysML) development, Bob became the Navy’s pioneer in the use of ontologies for ship data modeling and continues to be the Navy’s resident expert in this field. 

Bob is also responsible for the development of two mathematics libraries, David Taylor’s Non-Uniform Rational B-Splines (DT_NURBS) and the Geometry and Engineering Mathematics Library (GEML).  DT_NURBS was developed during his days in DARPA’s Hydrodynamic Technology Center where he developed techniques for the integration of geometry, gridding and Computational Fluid Dynamics (CFD). 

Bob is currently working on system integration of power and energy technologies, systems of systems modeling, and other design science enhancements to the Navy’s early stage design tools.

When not pursuing enhancements to the Navy’s early stage design capability, Bob is a yacht designer of performance sailboats (bana.com).  

Election Results

Congratulations to our newly elected incoming board members for 2018-2019!

Chair - Mr. Nathan Hagan
Vice Chair - Mr. Benjamin Testerman
Treasurer - Mr. Thomas Fuentes
Elected Member 2021 - CAPT Richard Delpizzo (USNR, ret)

On July 1st, they will start their terms and be joined by our returning elected board members:
Secretary - Ms. Kierstin Del Valle
Elected Member 2019 - Dr. Tim Arcano
Elected Member 2020 - Mr. Jaideep Sirkar


Call for Executive Committee Volunteers

The Chesapeake Section is looking for new and continuing members to join our Executive Committee. If you have general interest in the direction of our Section, or a specific interest in any of our activities, contact Section Chair Tim Mierzwicki. Opportunities include assisting with the planning and conducting of Young Professional sessions, Continuing Education and Professional Development classes, T&R Panels, and other cross-organization efforts. We are looking for any and all ideas on how to improve the work of the Society and our Section.


Call for Papers

The Chesapeake Section is looking for papers for our monthly technical meetings. We invite authors to submit abstracts on topics that advance the art, science, and practice of naval architecture and marine engineering in all their applied forms including the construction and operation of ships, marine vehicles, and structures of all kinds.

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