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Extensively Validated and Highly Accurate

Shock Simulation for Naval Platforms

Extensively Validated and Highly Accurate

Shock Simulation for Naval Platforms

DYSMAS Shock Simulations

We support your development from the initial design phase to the final implementation. With decades of expertise, we understand the mechanisms of threats from in-air detonations and underwater explosion loads and have the skills to analyze and assess systems effectively, whether it involves individual components or entire ships. Our familiarity with the relevant shock safety regulations enables us to provide comprehensive advisory support to you and your customers.

Shock resistance is often a major cost factor in the development and modernization of naval platforms (surface vessels and submarines). However, purely experimental, non-destructive proof of shock resistance is usually difficult or even impossible. Our DYSMAS shock simulations bridge this gap, making a significant contribution to the design, optimization and qualification of naval platforms.

Our in-house developed DYSMAS (Dynamic System-Mechanics Advanced Simulations) is a highly accurate, fully coupled program system for simulating fluid-structure interaction (FSI). It was specifically developed to calculate the response behavior of highly dynamic systems and can model complex high-speed physical phenomena such as underwater explosions (UNDEX), near-surface detonations (FLOATEX), in-air detonations (AIREX), high strain rate deformations, material fractures and structure penetration.

By combining these individual effects, DYSMAS enables us to cover the full spectrum of threats and their impacts on naval platforms as well as other land and air systems. This includes conventional weapons (e.g. mines, torpedoes, missiles) and asymmetric threats (e.g. IEDs).

Since the 1980s, DYSMAS has been continuously validated in numerous laboratory experiments and extensive UNDEX tests on decommissioned naval ships. Since 1996, it has been further developed in German-American cooperation, establishing DYSMAS as the standard tool for shock-related issues for the fleets of both nations.

We offer our DYSMAS simulation services to government organizations and industrial companies in all NATO member states and other eligible countries*.

Key Features of DYSMAS

  • Detailed simulation of underwater explosion phenomena, including primary shock wave, reflections, cavitation and cavitation collapse, gas bubble collapse and jetting
  • Extensive material database and failure models for shipbuilding materials such as steel, aluminum and fiber composites
  • Validated models for a variety of vibration dampers, allowing precise predictions of shock response spectra for elastically mounted systems
  • Consideration of effects from different substrates (e.g. seabed) in deep and coastal waters

Benefits for Naval Forces & Government Organizations

  • Identification and verification of design options during the procurement process for shock resistance
  • Support in the development of shipbuilding regulations
  • Design and planning of first-of-class shock trials
  • Analysis of structural response under operational conditions
  • Proof of shock resistance for new ship designs to meet approval requirements

Benefits for Shipyards and Other Industries

  • Support of qualification processes, e.g. according to BV 0230, MIL-S-901D
  • Evaluation of personnel hazards in shock-loaded marine platforms, e.g. in compliance with BV 0230
  • Assistance in developing and optimizing shock-resistant designs
  • Analysis of shock mounts and elastically mounted components
  • Hazard analysis related to old munitions

References

BAAINBw - ONR (USA) - Dutch MOD - NDLO Naval Systems - ThyssenKrupp Marine Systems - Fr. Lürssen Werft - Abeking & Rasmussen - TNO - TenneT - Stop Choc - Schopf Maschinenbau - Atlas Elektronik - Benteler Defence - ACS

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