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Moldenhauer, B., Roettgen, D. & Linderholt, A. (2024). System identification of nonlinear attachments for the dynamic substructuring round robin structure. In: Proceedings of ISMA2024 including USD2024: . Paper presented at ISMA - International Conference on Noise and Vibration Engineering.
Open this publication in new window or tab >>System identification of nonlinear attachments for the dynamic substructuring round robin structure
2024 (English)In: Proceedings of ISMA2024 including USD2024, 2024Conference paper, Published paper (Other academic)
Abstract [en]

Understanding the structural dynamics of built-up systems is essential to engineering design. A recent research focus that has steadily grown in both academic and industrial settings is experimental dynamic substructuring, which involves the combination of numerical and experimental models to predict the response of an assembled structure. An international team of dynamic substructuring researchers identified the need for a simple benchmark structure for the community to compare, collaborate, and improve dynamic substructuring techniques. Several nonlinear attachments for this structure have been designed and manufactured to explore aspects of dynamic substructuring in the presence of different nonlinearities. To provide insight to dynamic substructuring researchers participating in this benchmark challenge, this work documents the design of these nonlinear components and demonstrates the degree of nonlinearity encountered via experimental dynamic testing of the assembled structure.

National Category
Applied Mechanics
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
urn:nbn:se:lnu:diva-132631 (URN)
Conference
ISMA - International Conference on Noise and Vibration Engineering
Available from: 2024-09-18 Created: 2024-09-18 Last updated: 2024-11-20Bibliographically approved
Linderholt, A. (2023). An Experimental Exercise as Part of the Substructuring Benchmark Structure challenge. In: Allen, M., D'Ambrogio, W., Roettgen, D. (Ed.), Dynamic Substructures, Volume 4. SEM 2023. Conference Proceedings of the Society for Experimental Mechanics Series: . Paper presented at International Modal Analysis Conference, IMAC XLI (pp. 109-112). Springer
Open this publication in new window or tab >>An Experimental Exercise as Part of the Substructuring Benchmark Structure challenge
2023 (English)In: Dynamic Substructures, Volume 4. SEM 2023. Conference Proceedings of the Society for Experimental Mechanics Series / [ed] Allen, M., D'Ambrogio, W., Roettgen, D., Springer, 2023, p. 109-112Conference paper, Published paper (Refereed)
Abstract [en]

Some years ago, the Society of Experimental Mechanics’ (SEM’s) Technical Division (TD) on Dynamic Substructuring recognized a need for a simpler yet challenging benchmark structure for experimental-numerical substructuring exercises. That structure should replace the modified version of an Ampair 600 wind turbine as the common test object within the TD. Representatives from several research institutes formed a group that defined several desirable properties for the new benchmark structure. The outcome is a frame structure together with a differnt plates. Together, they can represent various structures such as automotive frames, wing-fuselage structures and building floors. The frame is made as a one-piece structure with many 10/32 tapped holes that can be used to attach other components, sensors or excitation devices.Sandia National Labs has manufactured the benchmark structure’s components, an aluminum frame together with two aluminum rectangular wings. An exercise/challenge has been formulated. The components have been shipped to the ones that have shown interest in participating in the exercise. The idea of the exercise is to compare different strategies to tackle an experimental substructuring task, containing both decoupling and coupling, thereby learning from each other.In the exercise, the participants start with an assembly built up by the frame and the thinner of the rectangular wings. That wing should then be numerically decoupled from the fuselage. To that numerical representation of the fuselage, the thicker wing should be coupled numerically. These decoupling and coupling operations render in a numerical representation of the thicker wing attached to the fuselage; a representation which output is compared with test data stemming from the real structure counterpart.Here, virtual points are used in the decoupling and coupling operations. Four attachment points, e.g., four screws, are used. In addition, washers between the fuselage and the wings are used in the connections. The purpose is to avoid too challenging non-linearities to start with. The Component Mode Synthesis (CMS), technique is used.

Place, publisher, year, edition, pages
Springer, 2023
Series
Conference Proceedings of the Society for Experimental Mechanics Series, ISSN 2191-5644, E-ISSN 2191-5652
Keywords
benchmark structure, experimental dynamic substructuring, component mode synthesis, transmission simulator, de-coupling
National Category
Mechanical Engineering
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
urn:nbn:se:lnu:diva-121699 (URN)10.1007/978-3-031-36694-9_12 (DOI)2-s2.0-85174610313 (Scopus ID)9783031366932 (ISBN)9783031366949 (ISBN)
Conference
International Modal Analysis Conference, IMAC XLI
Available from: 2023-06-12 Created: 2023-06-12 Last updated: 2024-01-09Bibliographically approved
Linderholt, A., Roettgen, D. & Moldenhauer, B. (2023). Combining steel and aluminum components of the Benchmark Structure for the Technical Division on Dynamic Substructuring. In: International Modal Analysis Conference, IMAC XLI: . Paper presented at International Modal Analysis Conference, IMAC XLI.
Open this publication in new window or tab >>Combining steel and aluminum components of the Benchmark Structure for the Technical Division on Dynamic Substructuring
2023 (English)In: International Modal Analysis Conference, IMAC XLI, 2023Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Research focus on experimental dynamic substructuring has grown in recent years in bothacademic and industrial interests. Methods to couple and decouple in the modal domain, i.e., usingComponent Mode Synthesis (CMS), the frequency domain, i.e., Frequency Based Substructuring(FBS), and the state-space domain have been developed to high pedigree. In addition, the use ofvirtual point transformations in substructuring exercises has opened new opportunities for thedefinition of substructuring constraints. The Society of Experimental Mechanics’ (SEM’s)Technical Division on Dynamic Substructuring recognized a need for a simple, yet challengingbenchmark structure for experimental-analytical substructuring collaborations as compared toprevious benchmark structures [1] [2] [3]. A team with members from many research institutes setout from several desirable properties and a unit-frame structure was designed as a benchmark forcurrent collaborative efforts detailed in [4]. The benchmark structure is built up by a frame withthreaded inserts that is bolted to plates of varying thickness and materials. When assembled thisstructure can span a diverse application space of substructuring techniques including automotiveframes, wing-fuselage structures, and structural frames and floors. The frame is made as a onepiecestructure; it consists of four units cells and includes 10/32 tapped holes that can be used toattach other components. In addition, 10/32 tapped holes are made on the side of the frame toattach impedance heads or force transducers.Substructuring is often used to connect test and finite element (FE) based subassembly models.Each model can play to its strengths with FE models containing high fidelity spatial density andexperimental models capturing difficult to model pieces of an assembly, i.e., joint mechanics. Inthis work the benchmark structure’s components, an aluminum frame together with a rectangularwing manufactured by Sandia National Labs, are combined with swept steel wings manufacturedby Linnaeus University. The study combines a test-based model of the assembled frame andrectangular wing with FE models representing wing subcomponents. The rectangular wing isnumerically decoupled from the fuselage by the use of an FE model representing the wing and theswept wing is then numerically coupled to the frame using an FE model. The modal substructuringpredictions are then compared with results from measurements on the assembly.

Keywords
dynamic substructuring, experimental analytical substructuring, component mode synthesis, frequency based synthesis, structural modification
National Category
Mechanical Engineering
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
urn:nbn:se:lnu:diva-121700 (URN)
Conference
International Modal Analysis Conference, IMAC XLI
Note

Ej belagd 20240319

Available from: 2023-06-12 Created: 2023-06-12 Last updated: 2024-03-19Bibliographically approved
Abrahamsen, R., Bjertnæs, M. A., Bouillot, J., Brank, B., Crocetti, R., Flamand, O., . . . Tulebekova, S. (2023). Dynamic response of tall timber buildings under service load: results from the dynattb research program. In: Nyrud, A. Q. and Malo, K. A. et al. (Ed.), World Conference on Timber Engineering 2023 (WCTE 2023): Timber for a Livable Future, 19-22 june, 2023,Oslo, Norway. Paper presented at World Conference on Timber Engineering 2023, 19-22 june, 2023, Oslo, Norway (pp. 2907-2914). Curran Associates, Inc.
Open this publication in new window or tab >>Dynamic response of tall timber buildings under service load: results from the dynattb research program
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2023 (English)In: World Conference on Timber Engineering 2023 (WCTE 2023): Timber for a Livable Future, 19-22 june, 2023,Oslo, Norway / [ed] Nyrud, A. Q. and Malo, K. A. et al., Curran Associates, Inc., 2023, p. 2907-2914Conference paper, Published paper (Refereed)
Abstract [en]

Wind-induced dynamic excitation is a governing design action determining size and shape of modern Tall Timber Buildings (TTBs). The wind actions generate dynamic loading, causing discomfort or annoyance for occupants due to the perceived horizontal sway, i.e. vibration serviceability problem. Although some TTBs have been instrumented and measured to estimate their key dynamic properties (eigenfrequencies, mode shapes and damping), no systematic evaluation of dynamic performance pertinent to wind loading had been performed for the new and evolving construction technologies used in TTBs. The DynaTTB project, funded by the ForestValue research program, mixed on site measurements on existing buildings excited by mass inertia shakers (forced vibration) and/or the wind loads (ambient vibration), for identification of the structural system, with laboratory identification of building elements mechanical features, coupled with numerical modelling of timber structures. The goal is to identify and quantify the causes of vibration energy dissipation in modern TTBs and provide key elements to finite element models. This paper presents an overview of the results of the project and the proposed Guidelines for design of TTBs in relation to their dynamic properties.

Place, publisher, year, edition, pages
Curran Associates, Inc., 2023
Keywords
Timber building, wind load, forced vibration, discomfort, modelling, damping, full scale
National Category
Applied Mechanics Building Technologies
Research subject
Technology (byts ev till Engineering), Mechanical Engineering; Technology (byts ev till Engineering)
Identifiers
urn:nbn:se:lnu:diva-122869 (URN)10.52202/069179-0380 (DOI)2-s2.0-85171742815 (Scopus ID)9781713873297 (ISBN)
Conference
World Conference on Timber Engineering 2023, 19-22 june, 2023, Oslo, Norway
Available from: 2023-06-28 Created: 2023-06-28 Last updated: 2024-01-18Bibliographically approved
Linderholt, A., Landel, P. & Johansson, M. (2023). Forced response measurements on a seven storey timberbuilding in Sweden. In: Anders Q. Nyrud, Kjell Arne Malo, Kristine Nore Omtre (Ed.), World Conferenceon TimberEngineering WCTE 2023: Timber for a Livable Future, 19-22 june, 2023,Oslo, Norway. Paper presented at 13th World Conference on Timber Engineering (2023), 19-22 June 2023, Oslo, Norway (pp. 2877-2884). Curran Associates, Inc.
Open this publication in new window or tab >>Forced response measurements on a seven storey timberbuilding in Sweden
2023 (English)In: World Conferenceon TimberEngineering WCTE 2023: Timber for a Livable Future, 19-22 june, 2023,Oslo, Norway / [ed] Anders Q. Nyrud, Kjell Arne Malo, Kristine Nore Omtre, Curran Associates, Inc., 2023, p. 2877-2884Conference paper, Published paper (Refereed)
Abstract [en]

Forced vibration tests have been conducted on the seven-storey timber building Eken in Mariestad inSweden. The main objective is to estimate the building’s dynamic properties from test data. The eigenfrequencies, modeshapes and their scaling are useful to calibrate numerical models. However, the most important outcomes are the estimatesof the modal damping values. The reason is that the damping impacts the acceleration, and thus the serviceability of thebuilding, and at the same time, it is very hard to model damping. So, during the design phase, one must rely on previoustest data (of which very few exist for taller timber buildings) or rule of thumbs. It is therefore important to gain knowledgeabout the damping for timber buildings in order to enable good designs of future and taller timber buildings. The test datashows that the modal damping is roughly equal to 2% of the critical viscous ones for the eigenmodes extracted. The testcampaign on Eken is made as a part of the project Dyna-TTB in which vibrational tests have been performed on eighthigh-rise timber buildings, in Europe, of which Eken is one.

Place, publisher, year, edition, pages
Curran Associates, Inc., 2023
Keywords
Forced vibration, timber building, damping, eigenmodes, experimental modal analysis, Dyna-TTB
National Category
Applied Mechanics
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
urn:nbn:se:lnu:diva-122671 (URN)10.52202/069179-0376 (DOI)2-s2.0-85171784845 (Scopus ID)9781713873297 (ISBN)9781713873273 (ISBN)
Conference
13th World Conference on Timber Engineering (2023), 19-22 June 2023, Oslo, Norway
Projects
Dyna-TTB
Available from: 2023-06-26 Created: 2023-06-26 Last updated: 2024-01-16Bibliographically approved
Linderholt, A., Landel, P. & Johansson, M. (2023). Forced Response Measurements on a Seven-Story Timber Building. In: Hae Young Noh, Matthew Whelan, P. Scott Harvey (Ed.), Dynamics of Civil Structures, Volume 2, Proceedings of the 41st IMAC, A Conference and Exposition on Structural Dynamics 2023: . Paper presented at International Modal Analysis Conference, IMAC XLI (pp. 1-4). Springer
Open this publication in new window or tab >>Forced Response Measurements on a Seven-Story Timber Building
2023 (English)In: Dynamics of Civil Structures, Volume 2, Proceedings of the 41st IMAC, A Conference and Exposition on Structural Dynamics 2023 / [ed] Hae Young Noh, Matthew Whelan, P. Scott Harvey, Springer, 2023, p. 1-4Conference paper, Published paper (Refereed)
Abstract [en]

Within the project Dyna-TTB, vibrational tests have been conducted on eight high-rise timber buildings, in Europe. A main objective of the project is to gain knowledge about damping in timber buildings to assist in predicting the accelerations, at the top of a building, due to wind-induced vibrations.One of the buildings is Eken (the oak) in Mariestad in Sweden. That building is seven stories tall, thus questionable as a tall timber building, yet an interesting test object. The building structure is made up of glue laminated timber beams and columns stabilized with glulam trusses.Forced vibration were conducted on Eken with the aim to estimate the building’s dynamic properties from test data. Estimates of the eigenfrequencies, mode shapes and their scalings are useful both in the calculations of wind-induced vibrations and to calibrate numerical models. However, the most important outcome is estimates of the modal damping values. The damping impacts the acceleration, and thus the serviceability of the building, and at the same time, it is very hard to model damping. So, during the design phase, one must rely on previous test data (of which very few exist for taller timber buildings) and rule of thumbs. It is therefore important to gain knowledge about the damping for timber buildings in order to enable good designs of future and taller timber buildings.

Place, publisher, year, edition, pages
Springer, 2023
Series
Conference Proceedings of the Society for Experimental Mechanics Series, ISSN 2191-5644, E-ISSN 2191-5652
Keywords
Forced vibration, Tall timber building, Dyna-TTB, Wind induced motion, Stepped Sine excitation
National Category
Civil Engineering
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
urn:nbn:se:lnu:diva-121701 (URN)10.1007/978-3-031-36663-5_1 (DOI)2-s2.0-85175995864 (Scopus ID)978-3-031-36662-8 (ISBN)978-3-031-36665-9 (ISBN)978-3-031-36663-5 (ISBN)
Conference
International Modal Analysis Conference, IMAC XLI
Available from: 2023-06-12 Created: 2023-06-12 Last updated: 2024-01-09Bibliographically approved
Olsson, J., Linderholt, A., Jarnerö, K. & Hongisto, V. (2023). Incremental use of FFT as a solution for low BT-product reverberation time measurements. Applied Acoustics, 203, Article ID 109191.
Open this publication in new window or tab >>Incremental use of FFT as a solution for low BT-product reverberation time measurements
2023 (English)In: Applied Acoustics, ISSN 0003-682X, E-ISSN 1872-910X, Vol. 203, article id 109191Article in journal (Refereed) Published
Abstract [en]

The limitations in performance of band-pass filters to accurately process rapid decaying signals in lower frequency bands is an obstacle for some measurements within building acoustics. For instance, it would be beneficial to be able to accurately measure reverberation times down to the 20 Hz one-third octave band for impact sound in timber buildings.

Here, it is tested whether calculations with FFT with small incremental steps may be a way to achieve discrete frequency time signals with faster performance than traditional band-pass filters. The tests show that incremental FFT gives accurate estimations of the reverberation time corresponding down to 0.1 seconds at 20 Hz with a spectral resolution of 2 Hz. Using the one-third octave limits it is possible to form approximate one-third octave band results. It is seen that accurate estimations of reverberation time are achievable for BT ≥ 0.5 (T = 0.1 seconds for the 20 Hz one-third octave band) and possibly even lower, if the dynamic range in the interrupted noise signal is sufficient. The higher one-third octave results show to work as well. A disadvantage with the method is that during short reverberation times (0.1 seconds) there is a severe spectral leakage to the side bands. Also, the method requires higher dynamic range decay signals compared to band-pass filtered signals. If a one-third octave resolution is requested, a dynamic range of 50 dB or greater is preferable. With a coarse resolution of e.g., 10 Hz and having no averaging into one-third octave bands, it is possible to measure short reverberation times (0.1 s) with signals having close to the same dynamic range used in classical band-pass filtered reverberation time measurements.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Reverberation time, Low frequency, FFT
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
urn:nbn:se:lnu:diva-118074 (URN)10.1016/j.apacoust.2022.109191 (DOI)000921541900001 ()2-s2.0-85145964362 (Scopus ID)
Projects
Tandem Forest Value
Funder
The Royal Swedish Academy of Agriculture and Forestry (KSLA), TF2019-0049
Available from: 2022-12-28 Created: 2022-12-28 Last updated: 2023-03-16Bibliographically approved
Olsson, J., Linderholt, A., Jarnerö, K. & Hongisto, V. (2023). Incremental use of FFT as a solution to measure short reverberation times in low one-third octave bands. In: Forum Acusticum Convention of the European Acoustics Association, Torino, 11-15 September 2023: . Paper presented at 10th Forum acousticum, 11-15 September, 2023, Torino, Italy. European Acoustical Association
Open this publication in new window or tab >>Incremental use of FFT as a solution to measure short reverberation times in low one-third octave bands
2023 (English)In: Forum Acusticum Convention of the European Acoustics Association, Torino, 11-15 September 2023, European Acoustical Association , 2023Conference paper, Published paper (Refereed)
Abstract [en]

Measurements of reverberation time is often used to obtain information about sound absorption of rooms within building acoustics. A limitation of the common method used today is the performance of band-pass filters to process rapidly decaying signals in the low frequency range. This occurs when the reverberation time (T) and bandwidth (B) product is less than 16. This is a limitation infor instance multi-story timber buildings where low frequency range, below 50 Hz is of interest for impact sound performance. Here, an alternative method is tested. Using incremental short time steps between each FFT calculation creates “moving average” signals, one for each frequency spectral line. A disadvantage is that the methodrequires a high dynamic range of the interrupted noisesignals, which increases with frequency resolution. Here itis tested to fit in the frequency resolution to the one-thirdoctave band frequency limits with as small errors as possible. It is shown that the dynamic range can be decreased a bit compared to a previously presented version. Two disadvantages with just one spectral line for each third octave band is that the signals are less stable and to produce the different frequency resolutions for each one-third octave requires more calculations.

Place, publisher, year, edition, pages
European Acoustical Association, 2023
Series
Proceedings of Forum Acusticum, ISSN 2221-3767
Keywords
Reverberation-time, Low-frequency, Impactsound, Timber-building
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
urn:nbn:se:lnu:diva-124755 (URN)2-s2.0-85191255809 (Scopus ID)9788888942674 (ISBN)
Conference
10th Forum acousticum, 11-15 September, 2023, Torino, Italy
Projects
Tandem Forest Value
Funder
The Royal Swedish Academy of Agriculture and Forestry (KSLA)
Available from: 2023-09-19 Created: 2023-09-19 Last updated: 2024-12-10Bibliographically approved
Kodakadath Premachandran, R., Linderholt, A. & Håkansson, L. (2023). Methodology for 3D simulation and analisys of a combination of axial impact and rotation of a DTH drilling system. In: 29th International Congress of Sound and Vibration: . Paper presented at 29th International Congress of Sound and Vibration, ICSV 2023, 9 -13 July, 2023, Prague. Society of Acoustics
Open this publication in new window or tab >>Methodology for 3D simulation and analisys of a combination of axial impact and rotation of a DTH drilling system
2023 (English)In: 29th International Congress of Sound and Vibration, Society of Acoustics , 2023Conference paper, Published paper (Other academic)
Abstract [en]

There is an increasing need for an effective monitoring strategy for the performance and condition of Down The Hole drilling. To achieve that, it is important to gain knowledge in the physics involved in Down The Hole drilling processes.A logical way to gain such understanding is to develop simulation models that are capable to represent the process. That requires physical understanding and thus, it is an iterative process. To capture the physics, it is essential to couple the axial impact, and the subsequent axial motion, with the rotation of the drill. The indentation into the rock due to impact and the subsequent resistance against rotation will couple the rotation to the axial motion and vice versa. The scenario is complicated due to the non-linear nature in the contacts and the varying stiffness of the rock.This paper presents a methodology that can be used to couple the axial and rotational motions of the DTH drills and explores the pros and cons of such a 3D simulation model.Keywords: DTH, 3D simulation, Condition monitoring

Place, publisher, year, edition, pages
Society of Acoustics, 2023
Series
Proceedings of the International Congress on Sound and Vibration
Keywords
DTH drilling, 1D simulations, 3D simulations, System model, Digital Twins, Condition Monitoring
National Category
Applied Mechanics
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
urn:nbn:se:lnu:diva-123911 (URN)2-s2.0-85170648983 (Scopus ID)9788011034238 (ISBN)
Conference
29th International Congress of Sound and Vibration, ICSV 2023, 9 -13 July, 2023, Prague
Available from: 2023-08-25 Created: 2023-08-25 Last updated: 2024-06-05Bibliographically approved
Hongisto, V., Alakoivu, R., Keränen, J., Hakala, J., Linderholt, A., Jarnerö, K., . . . Laukka, J. (2023). Perception of impact sounds through wooden floors was explained by frequencies 100-3150 Hz - psychoacoustic experiment on annoyance. In: Forum Acusticum Convention of the European Acoustics Association, Torino, 11-15 September 2023: . Paper presented at 10th Forum acousticum, 11-15 September, 2023, Torino, Italy. European Acoustical Association
Open this publication in new window or tab >>Perception of impact sounds through wooden floors was explained by frequencies 100-3150 Hz - psychoacoustic experiment on annoyance
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2023 (English)In: Forum Acusticum Convention of the European Acoustics Association, Torino, 11-15 September 2023, European Acoustical Association , 2023Conference paper, Published paper (Refereed)
Abstract [en]

The most popular single-number quantities (SNQs) of impact sound insulation in Europe are L'n, w and L'nT, w. They are based on measurements within 100-3150 Hz. Recently, it was proposed that the measurements should be extended down to 25 Hz for wooden floors, and L'nT, w+CI, 25 should replace L'nT, w. The purpose of this study is to analyze which of the two SNQs, Ln, w or LnT, w+CI, 25, predicts the annoyance of natural impact sounds better for wooden floors. We conducted a psychoacoustic experiment, where 52 participants rated the annoyance of 75 impact sounds. As stimuli, five types of natural impact sounds were used. They were recorded for 15 different wooden floors built in an impact sound insulation laboratory, where also their SNQs were measured. Based on correlation analysis, Ln, w explained annoyance of natural impact sounds equally well or better than Ln, w+CI, 25, depending on impact sound type Therefore, based on perception, it seems to be sufficient to conduct measurements within 100-3150 Hz for wooden floors and assess their sound insulation using L'nT, w or L'n, w © 2023 First author et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Place, publisher, year, edition, pages
European Acoustical Association, 2023
Series
Proceedings of Forum Acusticum, ISSN 2221-3767
Keywords
impact sound insulation, psychoacoustics, single-number quantities
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
urn:nbn:se:lnu:diva-133894 (URN)9788888942674 (ISBN)
Conference
10th Forum acousticum, 11-15 September, 2023, Torino, Italy
Available from: 2024-12-10 Created: 2024-12-10 Last updated: 2024-12-10Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-4404-5708

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