Optimal Shape Design

• F.N. Airaudo, H. Antil, R. Löhner, S. Warnakulasuriya, I. Antonau and R. Wüchner – On the Use of Risk Measures in Digital Twins to Identify Weaknesses in Structures; Proc. 9th European Congress on Comp. Meth. in Applied Sciences and Engineering ECCOMAS Congress 2024, Lisbon, Portugal, June 3–7 (2024).

• S. Warnakulasuriya, I. Antonau, F.N. Airaudo, R. Löhner, H. Antil and R. Wüchner – Optimal Sensor Placement Methodology for Adjoint-Based Weakening Localization in Structures; Proc. 9th European Congress on Comp. Meth. in Applied Sciences and Engineering ECCOMAS Congress 2024, Lisbon, Portugal, June 3–7 (2024)

• I. Antonau, S. Warnakulasuriya, F.N. Airaudo, R. Löhner, H. Antil and R. Wüchner – Formulation and Regularization of the Optimization Problem for Adjoint-Based Digital Twin Construction; Proc. 9th European Congress on Comp. Meth. in Applied Sciences and Engineering ECCOMAS Congress 2024, Lisbon, Portugal, June 3–7 (2024).

• F.N. Airaudo, H. Antil, R. Löhner and U. Rakhimov – On the Use of Risk Measures in Digital Twins to Identify Weaknesses in Structures; AIAA-2024-2622 (2024). https://doi.org/10.2514/6.2024-2622

• R. Löhner, F.N. Airaudo, H. Antil, R. Wüchner, F. Meister and S. Warnakulasuriya – High-Fidelity Digital Twins: Detecting and Localizing Weaknesses in Structures; AIAA-2024-2621 (2024). https://doi.org/10.2514/6.2024-2621

• F.N. Airaudo, R. Löhner, R. Wüchner and H. Antil – Adjoint-Based Determination of Weaknesses in Structures; https://arxiv.org/abs/2303.15329 (2023)

• R. Löhner, F.F. Camelli and Arthur Stüuck – Adjoint-Based Design of Passive Shock Mitigation Devices; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

• A. Stück, F. Camelli and R. Löhner – Adjoint-Based Design of Shock Mitigation Devices; Int. J. Num. Meth. Fluids 64, 443-472 (2010).

• A. Stück, F. Camelli and R. Löhner – Adjoint-Based Design of Passive and Active Shock Mitigation Devices; AIAA-10-1430 (2010).

• A. Stück, F. Camelli and R. Löhner – Adjoint-Based Design of Shock Mitigation Devices; AIAA-09-3801 (2009).

• T. Tsuga, R. Löhner and F. Togashi – Multi-Objective Assessment of Blast Damage; Proc. MABS-20 Conf., Oslo, Norway, September (2008).

• R. Löhner, F. Togashi and J.D. Baum – Finite Element Approximation of Complex Functions for Spatial Optimization and Search; Comm.Num.Meth.Eng.22, 823-830 (2006).

• F. Togashi, R. Löhner, J.D. Baum, H. Luo and S. Jeong – Comparison of Search Algorithms for Assessing Airblast Effects; AIAA-05-4985 (2005).

• R. Löhner – Blast Mitigation: A Co-Evolutionary Approach; paper presented at the Built Infrastructure Security Workshop (BIS’2004), Arlington, VA, October (2004).

• C. Yang and R. Löhner – H2O: Hierarchical Hydrodynamic Optimization; paper presented at the 25th Symp. on Naval Hydrodynamics, St. John’s, Newfoundland and Labrador, Canada, August (2004).

• O. Soto, R. Löhner and Chi Yang – An Adjoint-Based Design Methodology for CFD Problems; Int. J. Num. Meth. Heat and Fluid Flow 14, 6,734-759 (2004).

• O. Soto and R. Löhner – On the Computation of Flow Sensitivities From Boundary Integrals; AIAA-04-0112 (2004). (pdf)

• R. Löhner, O. Soto and Chi Yang – An Adjoint-Based Design Methodology for CFD Optimization Problems; AIAA-03-0299 (2003). (pdf)

• O. Soto, R. Löhner and C. Yang – A Stabilized Pseudo-Shell Approach for Surface Parametrization in CFD Design Problems; Comm. Num. Meth. Eng. 18, 4, 251-258 (2002).

• O. Soto and R. Löhner – A Mixed Adjoint Formulation for Incompressible RANS Problems; AIAA-02-0451 (2002). (pdf)

• O. Soto and R. Löhner – CFD Shape Optimization Using an Incomplete-Gradient Adjoint Formulation; Int.J. Num. Meth. Eng. 51, 735-753 (2001).

• O. Soto, R. Löhner and C. Yang – A Stabilized Pseudo-Shell Approach for Surface Parametrization in CFD Design Problems; Comm.Num.Meth.Eng. Submitted (2001). (pdf)

• O. Soto and R. Löhner – CFD Shape Optimization Using an Incomplete-Gradient Adjoint Formulation; Int.J.Num.Meth.Eng. In Press. (2001).

• O. Soto and R. Löhner – General Methodologies for Incompressible Flow Design Problems; AIAA-01-1061 (2001). (pdf)

• O. Soto and R. Löhner – CFD Shape Optimization Using an Incomplete-Gradient Adjoint Approach; Proc. ECCOMAS 2000, Barcelona, September (2000). (pdf)

• O. Soto and R. Löhner – CFD Optimization Using an Incomplete-Gradient Adjoint Approach; AIAA-00-0666 (2000). (pdf)