Alexander Brauchler

black: published, green: accepted for publication,  orange: submitted for publication

• Brauchler, A.; Gonzalez, S.; Vierneisel, M.; Ziegler, P.; Antonacci, F.; Sarti, A.; Eberhard, P.: Model-Predicted Geometry Variations to Compensate Material Variability in the Design of Classical Guitars.
  Preprint Research Square, DOI: 10.21203/rs.3.rs-2014605/v1
   
• Rettberg, J.; Wittwar, D.; Buchfink, P.; Brauchler, A.; Ziegler, P.; Fehr, J.; Haasdonk, B.: Port-Hamiltonian Fluid-Structure Interaction Modeling and Structure-Preserving Model Order Reduction of a Classical Guitar.
  Mathematical and Computer Modelling of Dynamical Systems, 2022. Preprint ArXiv: http://arxiv.org/abs/2203.10061
   
• Brauchler, A; Hose, D.; Ziegler, P.; Hanss, M.; Eberhard, P.: Distinguishing Geometrically Identical Instruments: Possibilistic Identification of Material Parameters in a Parametrically Model Order Reduced Finite Element Model of a Classical Guitar. Journal of Sound and Vibration, Vol. 535, p. 117071, 2022.
  [ DOI: 10.1016/j.jsv.2022.117071 ]
  
  
• Brauchler, A; Ziegler, P.; Eberhard, P.: Material Parameter Identification of Classical Guitars by Means of Surrogate Models Based on Parametric Model Order Reduction.
  Fortschritte der Akustik - DAGA 2022, Stuttgart, March 21-24, 2022.
  
  
• Brauchler, A; Ziegler, P.; Eberhard, P.: Identifikation der Materialparameter klassischer Gitarren auf Basis parametrisch modellordnungsreduzierter Finite Elemente Modelle (in German).
  Modelle der physikalischen Akustik Folien-Repositorium, Technical University of Darmstadt, 2021.
  [ DOI: 10.48328/tudatalib-798 ]
  
  
• Brauchler, A; Ziegler, P.; Eberhard, P.: Modeling the Body of a Classical Guitar Using the Finite Element Method and Experimental Modal Analysis.
  Fortschritte der Akustik - DAGA 2021, Vienna, August 15-18, 2021.
  
  
• Brauchler, A; Ziegler, P.; Eberhard, P.: An Entirely Reverse-Engineered Finite Element Model of a Classical Guitar in Comparison with Experimental Data. The Journal of the Acoustical Society of America, Vol. 149, No. 6, p. 4450-4462, 2021.
  [ DOI: 10.1121/10.0005310 ]
  
  
• Brauchler, A; Ziegler, P.; Eberhard, P.: Numerical Models for Classical Guitars with Updated Parameters from Experimental Data.
  Proceedings of Forum Acusticum 2020, Lyon, December 7-11, 2020.
  [ DOI: 10.48465/fa.2020.0072 ]
  
  
• Brauchler, A; Ziegler, P.; Eberhard, P.: Examination of Polarization Coupling in a Plucked Musical Instrument String via Experiments and Simulations. Acta Acustica, Vol. 4, No. 3, Paper No. 9 (12 pages), 2020.
  [ DOI: 10.1051/aacus/2020008]
  
  
• Brauchler. A.; Ziegler, P.; Benatti Camargo, S.; Eberhard, P.: Experimental and Simulative Examination of the String-Soundboard Coupling of an Acoustic Guitar.
  Proceedings of ISMA 2019, Detmold, September 13-17, 2019.
  
  
• Brauchler, A.; Ziegler, P.; Eberhard, P.: Experimentelle und numerische Untersuchung des Einflusses realistischer Randbedingungen auf Saitenschwingungen (in German).
  Fortschritte der Akustik - DAGA 2019, Rostock, March 18-21, 2019.
  
  
• Brauchler, A.; Ziegler, P.; Eberhard, P.: Experimental and Simulative Examination of Plucked Musical Instrument Strings, Masterthesis MSC-272.
  Institute of Engineering and Computational Mechanics, Stuttgart, 2018. (Eberhard, P; Ziegler, P.)
  
  
• Yamashita, H.; Chen, G.; Brauchler, A.; Ruan, Y.; Jayakumar, P; Sugiyama, H.: Computer Implementation of Hierarchical FE-DE Multiscale Approach for Modeling Deformable Soil in Multibody Dynamics Simulation.
  Proceedings of the ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Quebec, August 26-29, 2018.

• Brauchler, A.: Towards a Physics-Based Multiscale Continuum-Discrete Deformable Terrain Model for off-Road Mobility Simulation, SimTech-Researchthesis STUD-469.
  College of Engineering: University of Iowa, Iowa City, 2017. (Eberhard, P; Sugiyama, H.)

• Brauchler, A.: Einfluss der Markov-Parameter bei der Simulation von Stoßvorgängen (in German), Bachelorthesis BSC-57.
  Institute of Engineering and Computational Mechanics, Stuttgart, 2015. (Eberhard, P; Holzwarth, P; Walz, N.)

• October 18, 2022: IMSD 2022, New Delhi (India, online), "Model Updating and Geometry Optimisation on the Numerical Model of a Classical Guitar."
  
  
• September 22, 2022: Mondo Acustica 2022, Cremona (Italy), "Detailed Finite Element Models and Efficient Reduced Order Models – Steps Towards Predictive Virtual Prototypes in Classical Guitar Making."
  
  
• September 12, 2022: Vienna Talk 2020/22, Vienna (Austria), "Towards Acoustic Copies of Guitars - Predicting the Effect of Geometry Modifications on Guitar Soundboards."
  
  
• September 12, 2022: Vienna Talk 2020/22, Vienna (Austria), "Material Parameter Identification of Complete Guitars - Accomplishments and Limitations", Poster Presentation.
  
  
• July 25, 2022: Statusseminar ITM, Hösbach (Germany), "Guitar Hero Vol.4 - Shape of You."
  
  
• March 22, 2022: DAGA 2022, Stuttgart (Germany), "Material Parameter Identification of Classical Guitars by Means of Surrogate Models Based on Parametric Model Order Reduction."
  
  
• November 24, 2021: Statusseminar ITM, Monbachtal (Germany), "Guitar Hero Vol 3 - Blurred Lines."
  
  
• October 21, 2021: DEGA Workshop Physical Acoustics, Bad Honnef (Germany),
  "Identifikation der Materialparameter klassischer Gitarren auf Basis parametrisch modellordnungsreduzierter Finite Elemente Modelle (in German)."
  
  
• October 15, 2021: Guest Lecture in the Seminar of the Musical Acoustics Lab (DEIB Politecnico Milano), Cremona (Italy),
  "The Ingredients of Numerical Guitar Models and How They Can Help Understanding Existing Instruments."
  
  
• August 18, 2021: DAGA 2021, Vienna (Austria),
  "Modeling the Body of a Classical Guitar Using the Finite Element Method and Experimental Modal Analysis."
  
  
• June 8, 2021: ASA Acoustics in Focus (online),
  "Reverse-Engineering a Digital Twin of a Classical Guitar Using the Finite Element Method and Experimental Modal Analysis."
  
  
• December 10, 2020: Forum Acusticum 2020, Lyon (France, online),
  "Numerical Models for Classical Guitars with Updated Parameters from Experimental Data."
  
  
• May 29, 2020: Project Presentation, Weissach (Germany, online),
  "Modal Analysis of Braking Discs with the Complex Mode Indicator Function and Enhanced Frequency Response Functions."
  
  
• September 15, 2019: ISMA 2019, Detmold (Germany),
  "Experimental and Simulative Examination of the String-Soundboard Coupling of an Acoustic Guitar."
  
  
• June 03, 2019: Statusseminar ITM, Bad-Herrenalb (Germany), "Guitar Hero Vol. 2 - Underneath Your Strings."
  
  
• March 19, 2019: DAGA 2019 - 45. Jahrestagung für Akustik, Rostock (Germany),
  "Experimentelle und numerische Untersuchung des Einflusses realistischer Randbedingungen auf Saitenschwingungen (in German)."
  
  
• May 28, 2018: Statusseminar ITM, Bad-Herrenalb (Germany), "The Temptation of Vibration - Plucked Musical Instrument Strings."
  
  
• May 22, 2017: Statusseminar ITM, Monbachtal (Germany), "Towards a Physics-Based Multiscale Continuum-Discrete Deformable Terrain Model for off-Road Mobility Simulation."

• Data-Based Discrepancy Modeling for a Parametrically Model Order Reduced Finite Element Model of a Classical Guitar , Master Thesis (ongoing).
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2022.
  In co-supervision with Dr.-Ing. Pascal Ziegler
  In cooperation with: Musical Acousticas Lab of the Politecnico Di Milano in Cremona.

• Influence Quantification of Design Parameters of Classical Guitars by Means of Numerical Models, SimTech Project Thesis SA-38.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2021.
  In co-supervision with Dr.-Ing. Pascal Ziegler

• Acoustic Modeling and Numerical Simulation of the Sound Radiation of a Guitar Box, Master Thesis MSC-323.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2022.
  In co-supervision with Dr.-Ing. Pascal Ziegler

• Application of the Response Surface Method to Identify Unknown Parameters of a Soundboard Model of a Classical Guitar, Student Thesis STUD-515.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2021.
  In co-supervision with Dr.-Ing. Pascal Ziegler

• Comparison of the Continuous Wavelet Transform with the Short-Time Fourier Transform in Time-Frequency Analysis of Vibrating Structures, Bachelor Thesis BSC-142.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2021.
  In co-supervision with Fabian Matter, M.Sc.

• Identification of Material Parameters of a Guitar using Parametrically Reduced Models, Master Thesis MSC-303.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2020.
  In co-supervision with Benjamin Fröhlich, M.Sc.
   
• Modeling of the Fluid-Structure Interaction between Guitar Body and Enclosed Air, SimTech Project Thesis SA-27.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2020.
  In co-supervision with Dr.-Ing. Pascal Ziegler

• Modeling and Optimization of the Bracing of a Classical Guitar, SimTech Project Thesis SA-30.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2019.
  In co-supervision with Dr.-Ing. Pascal Ziegler

• Modeling and Simulation of a Classical Guitar, Master Thesis MSC-286.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2019.
  In co-supervision with Dr.-Ing. Pascal Ziegler
  In cooperation with: Sapienza University of Rome.

• Nonlinear Coupling of the Transversal and Longitudinal String Oscillation, Bachelor Thesis BSC-103.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2019.
  In co-supervision with Dr.-Ing. Pascal Ziegler

• Influence of the Saddle on the Shape of the String Oscillation of the Acoustic Guitar, Bachelor Thesis BSC-102.
  University of Stuttgart, Institute of Engineering and Computational Mechanics, 2019.
  In co-supervision with Dr.-Ing. Pascal Ziegler

• Exercises and seminar in Applied Mechanics I (WS 2022/2023)

• Practical training on the topic "Acoustic Measurements and Sound Visualization" (WS 2022/2023)

• Lectures on the topic of the finite element method in Applied Mechanics IV (ST 2022)

• Organization of the seminar and booster workshops, as well as advisor of the tutor seminar and booster workshops in Applied Mechanics IV (ST 2022)

• Organization of the seminar and advisor of the tutor seminar in Applied Mechanics III (WT 2021/2022)

• Try Science workshop for pupils (WT 2021/2022)

• Supervisor of Proseminar Engineering Cybernetics (ST 2021)

• Organization of the seminar and advisor of the tutor seminar in Applied Mechanics IV (ST 2020)
  
  
• Organization of the seminar and advisor of the tutor seminar in Applied Mechanics III (WT 2019/2020)

• Exercises and teaching assistant of the lecture Applied Mechanics II (ST 2019)

• Exercises and teaching assistant of the lecture Applied Mechanics I (WT 2018/2019)

• Printers (until ST 2022)

• Student workers (until ST 2020)