Torstens Skujins
Torstens Skujins, Ph.D., P.E.
Senior Engineer
Mechanical Engineering
  • Menlo Park

Dr. Skujins’ areas of expertise include fluid flow, structural analysis, and fluid-structure interaction. While at Exponent, he has worked on a wide range of projects involving such topics as aircraft accident analysis, industrial equipment accident investigations, fuel spills, and industrial plant underperformance analysis, among others.

As a graduate student, he was a part of the Michigan-AFRL Collaborative Center in Control Science (MACCCS), which is an Air Force-sponsored effort with a goal to develop a six degree-of-freedom hypersonic vehicle controls simulation framework and then then use that framework to study vehicle controllability. Dr. Skujins developed a computationally-efficient model for the calculation of unsteady aerodynamic loads for general vehicle configurations which can be used throughout the duration of a hypersonic vehicle’s entire flight, from subsonic up through hypersonic speeds. This model involves extracting pertinent data from high-fidelity computational fluid dynamics solutions and then using that data to construct reduced-order models which retain a large amount of the accuracy seen in the full-order solutions while running orders of magnitude faster computationally. As part of the collaborative effort with the Air Force, he spent two summers during his graduate career working alongside research sponsors at the Air Force Research Laboratory at Wright-Patterson Air Force Base in Ohio. Additionally, he spent all or part of three summers during his undergraduate career with a separate group in the Air Force Research Laboratory working in the wind tunnels on base.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Aerospace Engineering, University of Michigan, Ann Arbor, 2013
  • M.S., Aerospace Engineering, University of Michigan, Ann Arbor, 2009
  • B.S., Mechanical Engineering, Duke University, 2007
  • Departmental Fellowship, University of Michigan, 2007-2008

    Pratt Fellowship, Duke University, 2006-2007

    Co-president, Pi Tau Sigma mechanical engineering honor society (Duke chapter), 2007

LICENSES & CERTIFICATIONS

Licensed Professional Mechanical Engineer, California, #M37379

Publications

Skujins T, Cesnik CES. Reduced-order modeling of unsteady aerodynamics across multiple mach regimes. Journal of Aircraft 2014 Dec; 51(6):1681–1704.

Skujins T, Cesnik CES, Oppenheimer MW, Doman DB. Canard-elevon interactions on a hypersonic vehicle. Journal of Spacecraft and Rockets 2010 Feb; 47(1):90–100.

Conference Proceedings

Skujins T, Cesnik CES. Toward an unsteady aerodynamic ROM for multiple mach regimes. Proceedings, 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA-2012-1708, April 2012.

Skujins T, Cesnik CES. On the applicability of an unsteady aerodynamic ROM to the transonic regime. Proceedings, AIAA Atmospheric Flight Mechanics Conference, AIAA-2011-6525, August 2011.

Skujins T, Cesnik CES. Reduced-order modeling of hypersonic unsteady aerodynamics due to multi-modal oscillations. Proceedings, 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, AIAA-2011-2341, April 2011.

Skujins T, Cesnik CES. Reduced-order modeling of hypersonic vehicle unsteady aerodynamics. Proceedings, AIAA Atmospheric Flight Mechanics Conference, AIAA-2010-8127, August 2010.

Frendreis SGV, Skujins T, Cesnik CES. Six-degree-of-freedom simulation of hypersonic vehicles. Proceedings, AIAA Atmospheric Flight Mechanics Conference, AIAA 2009-5601, August 2009.

Skujins T, Cesnik CES, Oppenheimer MW, Doman DB. Applicability of an analytical shock/expansion solution to the elevon control effectiveness for a 2-D hypersonic vehicle configuration. Proceedings, AIAA Atmospheric Flight Mechanics Conference and Exhibit, AIAA-2008-6384, August 2008.

Oppenheimer MW, Skujins T, Cesnik CES, and Doman DB. Canard-elevon interactions on a hypersonic vehicle. Proceedings, AIAA Atmospheric Flight Mechanics Conference and Exhibit, AIAA-2008-6383, August 2008.

Oppenheimer MW, Skujins T, Bolender MA, Doman DB. A flexible hypersonic vehicle model developed with piston theory. Proceedings, AIAA Atmospheric Flight Mechanics Conference and Exhibit, AIAA-2007-6396, August 2007.

Presentations

AIAA Structures, Structural Dynamics, and Materials Conference, 2012.

AIAA Atmospheric Flight Mechanics Conference, 2008, 2010, 2011.

AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2011.


Professional Affiliations

American Institute of Aeronautics and Astronautics (member)

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Aerospace Engineering, University of Michigan, Ann Arbor, 2013
  • M.S., Aerospace Engineering, University of Michigan, Ann Arbor, 2009
  • B.S., Mechanical Engineering, Duke University, 2007
  • Departmental Fellowship, University of Michigan, 2007-2008

    Pratt Fellowship, Duke University, 2006-2007

    Co-president, Pi Tau Sigma mechanical engineering honor society (Duke chapter), 2007

LICENSES & CERTIFICATIONS

Licensed Professional Mechanical Engineer, California, #M37379