The U.S. Navy submarine and surface fleets have relied on Cardinal Engineering and their staff for decades to make certain that our service members have full operational capabilities when they need them the most.
Shock Survivability Design and Analysis
Survivability is a core element of any new warship system or platform design. From advanced research into weapons threats and shock mitigation technology, to development and application of innovative analysis techniques and tools, the Cardinal team has been at the forefront of shock design and analysis on over a dozen ship classes. Recognized as Subject Matter Experts throughout the Navy, Cardinal Engineering provides: new developments in shock modeling and analysis; codification of new methods and techniques; and compliance assurance for new component, system and platform designs.
Finite Element Modeling (FEM)
A quality finite element analysis starts with a quality model. Cardinal leverages decades of structural modeling experience to create the right model for the task, capturing complex structural features and providing design guidance for shock hardening and survivability. Whether the analysis requires transient shock inputs, the Dynamic Design Analysis Method (DDAM), or more advanced techniques, Cardinal Engineering has the knowledge and the tools to solve your design challenges.
Advanced Tools and Capabilities
Cardinal has the capability and expertise to carry out sophisticated analyses involving multi-physics simulations. From computational fluid dynamics (CFD) of hull forms and propulsion systems, to highly dynamic structural response with hydrocode software, to coupled fluid-structure interaction (FSI) simulations of shock events, we can get the answers you need.
Shock Qualification
Whether shock qualifying by test, extension, or analysis, Cardinal can help you make sure your equipment works when you need it most. Cardinal’s expertise is sought-after in the field of shock qualification, and partners in both Navy and industry have trusted us to guide systems through the process for both surface and submarine fleets. Drawing on our expertise in the requirements of MIL-DTL-901E, and its predecessor MIL-S-901D, the Cardinal team has the understanding to bring your systems into compliance in the most cost-effective manner.
Specification Development
Cardinal provides integral support to the Navy survivability community in the development of updates to several specifications and standards, including MIL-S-901D / MIL-DTL-901E. Cardinal’s intimate familiarity with shock specifications is unparalleled, leading to our prominent role on submarine and surface ship programs alike. For decades, Cardinal engineers have been developing and conducting reviews of component and system qualification plans to ensure compliance to governing ship specifications and standards, for the preservation of mission critical operability and the safety of the crew.
Pathways to Qualification
Cardinal has the expertise to guide your systems through the shock qualification process. Our long history with shock specifications and familiarity with MIL-DTL-901E requirements give us unmatched insight into shock qualification. After decades of working closely with U.S. Navy and industry partners, Cardinal can identify the appropriate path – whether it be analysis, testing, or by extension – to achieve qualification in the most economical means possible.
Qualification Tools
Early assessment of shock qualification allows designers to understand the impact of their design choices well before a drawing is issued or fabrication has begun, providing great potential for cost savings. Cardinal’s ShockIQ custom software allows designers to identify what qualification methods can be used, and what design decisions are limiting the use of others.