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Justin Gray

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Publications

Journal Articles

Gray JS, Hwang JT, Martins JRRA, Moore KT, Naylor BA. OpenMDAO: An open-source framework for multidisciplinary design, analysis, and optimization. Structural and Multidisciplinary Optimization. 2019 ;59(4):1075--1104.PDF icon OpenMDAO_preprint.pdf (2.75 MB) For a quick overview of what OpenMDAO is and what it does, read the introduction, the overview of applications (Sec. 7, especially Table 13), and the conclusions (Sec. 8). Potential OpenMDAO users should also read Sec. 3, which explains the basic usage and features through a simple example. The rest of the paper provides a background on MDO frameworks and the history of OpenMDAO development (Sec. 2), the theory behind OpenMDAO (Sec. 4), and the details of the major new contributions in OpenMDAO V2 in terms of multidisciplinary solvers (Sec. 5) and coupled derivative computation (Sec. 6). DOI DOI:10.1007/s00158-019-02211-z PDF File BibTex Google Scholar

Conference Papers

Jasa JP, Gray JS, Seidel JA, Mader CA, Martins JRRA. Multipoint Optimization of a Variable Cycle Engine Using Gradient-based Optimization. In: 57th AIAA Aerospace Sciences Meeting, AIAA SciTech Forum. 57th AIAA Aerospace Sciences Meeting, AIAA SciTech Forum. San Diego, CA: AIAA; 2019.PDF icon jasa_scitech_2019_submitted.pdf (1012.9 KB) DOI DOI:10.2514/6.2019-0172 PDF File BibTex Google Scholar
Jasa JP, Chauhan SS, Gray JS, Martins JRRA. How Certain Physical Considerations Impact Aerostructural Wing Optimization. In: AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. ; 2019.PDF icon jasa_aviation_2019.pdf (402.31 KB) PDF File BibTex Google Scholar
Roy S, Crossley WA, Moore KT, Gray JS, Martins JRRA. Next generation aircraft design considering airline operations and economics. In: AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. ; 2018. DOI DOI:10.2514/6.2018-1647 BibTex Google Scholar
Gray JS, Kenway GKW, Mader CA, Martins JRRA. Aeropropulsive Design Optimization of a Turboelectric Boundary Layer Ingestion Propulsion System. In: Proceedings of the AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Proceedings of the AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. ; 2018.PDF icon starc_abl_2018.pdf (14.26 MB) DOI DOI:10.2514/6.2018-3976 PDF File BibTex Google Scholar
Gray JS, Mader CA, Kenway GKW, Martins JRRA. Approach to Modeling Boundary Layer Ingestion using a Fully Coupled Propulsion-RANS Model. In: 55th AIAA Aerospace Sciences Meeting (SciTech). 55th AIAA Aerospace Sciences Meeting (SciTech). ; 2017. DOI DOI:10.2514/6.2017-1753 BibTex Google Scholar
Hendricks E, Falck RD, Gray JS. Simultaneous Propulsion System and Trajectory Optimization. In: 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. ; 2017. BibTex Google Scholar
Falck RD, Chin JC, Schnulo SL, Burt JM, Gray JS. Trajectory Optimization of Electric Aircraft Subject to Subsystem Thermal Constraints. In: 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. ; 2017. BibTex Google Scholar
Roy S, Moore KT, Hwang JT, Gray JS, Crossley WA, Martins JRRA. A Mixed Integer Efficient Global Optimization Algorithm for the Simultaneous Aircraft Allocation-Mission-Design Problem. In: Proceeding of the 58th AIAA Structures, Structural Dynamics, and Materials Conference. Proceeding of the 58th AIAA Structures, Structural Dynamics, and Materials Conference. ; 2017. DOI DOI:10.2514/6.2017-1305 BibTex Google Scholar
Gray JS, Chin JC, Hearn TA, Hendricks E, Lavelle TM, Martins JRRA. Thermodynamics for Gas Turbine Cycles with Analytic Derivatives in OpenMDAO. In: 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. ; 2016.PDF icon gray_pycycle_thermodynamics.pdf (688.53 KB) DOI DOI:10.2514/6.2016-0669 PDF File BibTex Google Scholar
Gray JS, Hearn TA, Moore KT, Hwang JT, Martins JRRA, Ning A. Automatic Evaluation of Multidisciplinary Derivatives Using a Graph-Based Problem Formulation in OpenMDAO. In: Proceedings of the 15th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Proceedings of the 15th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Atlanta, GA; 2014.PDF icon Gray-MAO-2014.pdf (4.08 MB) PDF File BibTex Google Scholar
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