Jahresbericht 2017

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Vibroacoustics of Vehicles and Machines
Prof. Dr.-Ing.
Steffen
Marburg
Contact
Phone +49.89.289.55121
Management
Prof. Dr.-Ing. Steffen Marburg
Administrative Staff
Elke Reichardt
Akademischer Rat
Dr.-Ing. Kheirollah Sepahvand
Academic Staff
Sourav Chandra, M.Eng.
(Ph.D. student with scholarship)
Suhaib Koji Baydoun, M.Sc.
Dr. phil. Monika Gatt-Walter
Christian Geweth, M.Sc.
Christopher Jelich, M.Sc.
Patrick Langer, M.Eng.
Lennart Moheit, M.Sc.
Ferina Saati Khosroshahi, M.Sc.
Magdalena Scholz, M.Sc.
Visiting Scholars
Peter Risby Andersen
Shubham Garg
Nian Yang
Wenchang Zhao
Research Focus
■■Computational acoustics (FEM, BEM)
■■Virtual prototyping
■■Identification of uncertain parameters
■■Lightweight material characterization
■■Non-destructive testing for damage
detection
■■Sound propagation in flow
■■Normal modes in external acoustics
■■Acoustics in porous media
Competence
■■Vibrational and acoustical
measurements
■■Computational acoustics (FEM, BEM)
■■Modal analysis
■■Vibroacoustic simulation
■■Fluid-structure interaction
■■Self-sustained vibrations
■■Structural-acoustic optimization
■■Identification of admittance boundary
conditions
Infrastructure
■■3D laser Doppler scanning vibrometer
(Polytec)
■■Multichannel measurement system
(B&K)
■■Acoustic camera (B&K)
Courses
Various courses, training sessions
and workshop modules have been
developed and offered in graduate and
undergraduate levels during the last
academic year.
■■Introduction to Vibroacoustics
■■Computational Acoustics
■■Applied FEM in Vibroacoustics
■■Stochastic Finite Element Method in
Vibroacoustics
■■Modeling in Vibroacoustics
■■Sound Radiation
■■Colloquium on Acoustics
■■Philosophy of Nature and the
Philosophical Basis of Acoustics
■■Vibroacoustics in Industrial Practice
■■Introduction to Philosophy for
Engineers
■■Ethics for Engineers
Selected Publications and Keynotes
■■Chen, L., Marburg, S., Chen, H., Zhang,
H., Gao, H.: An Adjoint Operator
Approach for Sensitivity Analysis
of Radiated Sound Power in Fully
Coupled Structural-Acoustic Systems
(2017) Journal of Computational
Acoustics, 25 (1), art. No. 1750003
■■Langer, P., Sepahvand, K., Guist, C.,
Marburg, S.: Finite element modeling
for structural dynamic analysis of bol­
ted joints under uncertainty (2017) Pro­
cedia Engineering, 199, pp. 954-959
■■Lennart M. and Marburg S.: Numerical
Methods for Vibro-Acoustics and Aero­
acoustics: Infinite Elements and Their
Influence on Normal and Radiation
Modes in Exterior Acoustics. Journal
of Computational Acoustics, Vol. 25,
No. 4 (2017) 1650020 (20 pages)
■■Sepahvand, K., Marburg, S.: Spectral
stochastic finite element method
in vibroacoustic analysis of fiber-
reinforced composites (2017) Procedia
Engineering, 199, pp. 1134-1139
■■Sepahvand, K.: Stochastic finite
element method for random harmonic
analysis of composite plates with
uncertain modal damping parameters
(2017) Journal of Sound and Vibration,
400, pp. 1-12
Keynotes at International Conferences
■■Steffen Marburg. Surface Contribution
Analysis Using Non-Negative Intensity,
the 13th International Conference
on Theoretical and Computational
Acoustics (ICTCA2017), 30 July to
3 August 2017, Vienna, Austria
■■Steffen Marburg. Conventional Boun­
dary Element Techniques: Recent
Developments and Opportunities,
INTER-NOISE 2017, the 46th Inter­
national Congress and Exposition
on Noise Control Engineering, 27-30
August 2017, Hong Kong, China
■■Kheirollah Sepahvand. Identification
of random elastic and damping
parameters of composite structures,
3rd International Conference
on Mechanics of Composites
(MECHCOMP3), 4-7 July 2017,
Bologna, Italy