Research Summaries

Back LCS Class Ship Shock Modeling and Simulation Using DYSMAS Code

Fiscal Year 2011
Division Graduate School of Engineering & Applied Science
Department Mechanical & Aerospace Engineering
Investigator(s) Didoszak, Jarema M.
Sponsor Naval Sea Systems Command (Navy)
Summary The objectives of this project are as such (1) to perform Finite Element Method (FEM) modeling of the two hull variants of the LCS Class using the DYSMAS hydrocode in support of the required survivability analysis, including underwater explosion testing and ship shock trials (2) to identify potential problem areas as related to the survivability of the LCS hull variants as designed in Flight 0 (3) to assist in the validation and verification on the revised LCS class ship shock models and (4) to provide insight into the planning of the future testing plan. Using both the General Dynamics and Lockheed Martin LCS Class ship model variants the Naval Postgraduate School (NPS) Shock and Vibration Computational Laboratory (SVCL) will continue to identify and investigate Potential Problem Areas in Ship System through the following: a) refinement of the fluid and structural models used in the underwater explosion (UNDEX) threat analysis to include specific influence of littoral environment b) use of realistic threats and c) effects of near field explosions with comparable FSST shock intensities. Additionally NPS SVCL will provide DYSMAS Verification, Validation & Accreditation (VV&A) support to the Shock Manager through documentation of implementation and use of DYSMAS/Paradyn program.
Keywords
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Data Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal