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Enabling Innovation Through Engineering Support and Expertise

SDI specializes in Research & Development, engineering software tool development, and engineering services for high-performance mechanical, systems, and structures applications, through our modeling, simulation, design, analysis, and testing capabilities

We build software tools and leverage our niche engineering skills to propel customers forward

SDI is experienced in providing support to a range of customers including major OEMs, their suppliers, and other small business firms for over 25 years. We are actively involved in SBIR/STTR research and development programs in various disciplines.

We strive to provide our technical prowess in tandem with collaborative and transparent customer relationships in industries ranging from aeronautics to civil to automotive engineering.

Our Software Solutions

Landing gear simulation tool for ground loads and landing gear systems analysis. 

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Aerial refueling modeling and simulation tool using multi-body dynamics methods.

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Probabilistic aeroservoelasticity tools to isolate uncertainties in simulation and manufacturing applications.

Let one of our Experts show you more about our products and how we can help

Who We've Worked With

United States Air Force Logo
airbus logo
atkins logo
Tamarack Aerospace Group Logo
United States Navy logo
nasa logo
Cobham aerospace and defense company logo
Stirling Dynamics Logo
Naval Air Systems Logo
boeing logo
Midé Logo
Bridgestone Logo
United States Army logo
Moog Logo
Virginia Tech Logo
Seattle University Logo
University of Dayton Research Institute Logo

Our Specialties


Applied Research and Development

SDI is a full cycle engineering firm with advanced modeling & simulation capabilities

Utilize our engineering expertise and software tools in innovative industries.

Image by Hanson Lu

Landing Gear Systems

Our innovative software solution GearSim continues to empower engineers

Over 15 years of experience working with US Department of Defense and aircraft OEMs.

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Aerial Refueling

Physics-based hose and subsystem modeling and design with SDI’s ARES software

Modeling, simulation, design, analysis, and testing in support of the US Navy since 2009.

Image by Shadrach Warid

Tires, Wheels, and Brakes

Tire modeling and condition monitoring

Realistic dynamic analysis of takeoff, landing, and ground maneuvering scenarios. 

Airplane Wing

Aeroelastics, Loads, and Structures

Your partner in the design, analysis, and certification process

Serving the Commercial and Military aerospace industry for over 25 years 

Car Factory

Actuators and Controls

Holistic approach to model development and implementation

SDI has a history supporting aircraft OEMs in actuator & control modeling, simulation, design, analysis and testing.

Teacher Assisting a Student


MATLAB based modeling and simulation tool for the next generation of engineers

Giving students first hand experience in rapid systems and subsystems-level analysis. 

SDI is a proud member of the United States Small Business Chamber of Commerce 

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