Noise control of the common base frame of a genset

Kari Saarinen, Lasse Lamula, Matias Aura, Gao Zengxin

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Diesel engine driven generators are rigidly mounted on a welded steel plate structure called the common base frame (CBF). Formerly the engine was considered as the only significant sound source but recent studies have shown that the sound power radiation from the CBF is almost comparable to the engine. Constrained layer damping was selected as a noise control method for the CBF. The dimensions and number of the dampers were designed using FEM. The chosen damper configuration was installed on the CBF and tested during a standard factory acceptance test. Measured insertion loss was significant but lower than expected and the effective frequency range differed from the simulation. The major reason for the discrepancies was the deviation of the estimated operational temperature from the actual. Validation of the material model also improved the correlation between measurements and simulations.
Original languageEnglish
Title of host publicationProceedings of ISMA2012 - USD2012
Place of PublicationLeuven
PublisherKU Leuven
Pages2409-2418
Number of pages10
ISBN (Print)9789073802896
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
EventISMA 2012: ISMA Noise and Vibration Engineering Conference - Leuven, Belgium
Duration: 17 Sep 201219 Sep 2012

Conference

ConferenceISMA 2012
CountryBelgium
CityLeuven
Period17/09/1219/09/12

Fingerprint

Acoustic variables control
Acoustic waves
Engines
Acceptance tests
Insertion losses
Diesel engines
Industrial plants
Damping
Finite element method
Radiation
Steel
Temperature

Keywords

  • Noise
  • vibration
  • damping
  • FE-analysis

Cite this

Saarinen, K., Lamula, L., Aura, M., & Zengxin, G. (2012). Noise control of the common base frame of a genset. In Proceedings of ISMA2012 - USD2012 (pp. 2409-2418). Leuven: KU Leuven.
Saarinen, Kari ; Lamula, Lasse ; Aura, Matias ; Zengxin, Gao. / Noise control of the common base frame of a genset. Proceedings of ISMA2012 - USD2012. Leuven : KU Leuven, 2012. pp. 2409-2418
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Saarinen, K, Lamula, L, Aura, M & Zengxin, G 2012, Noise control of the common base frame of a genset. in Proceedings of ISMA2012 - USD2012. KU Leuven, Leuven, pp. 2409-2418, ISMA 2012, Leuven, Belgium, 17/09/12.

Noise control of the common base frame of a genset. / Saarinen, Kari; Lamula, Lasse; Aura, Matias; Zengxin, Gao.

Proceedings of ISMA2012 - USD2012. Leuven : KU Leuven, 2012. p. 2409-2418.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AU - Zengxin, Gao

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PY - 2012

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N2 - Diesel engine driven generators are rigidly mounted on a welded steel plate structure called the common base frame (CBF). Formerly the engine was considered as the only significant sound source but recent studies have shown that the sound power radiation from the CBF is almost comparable to the engine. Constrained layer damping was selected as a noise control method for the CBF. The dimensions and number of the dampers were designed using FEM. The chosen damper configuration was installed on the CBF and tested during a standard factory acceptance test. Measured insertion loss was significant but lower than expected and the effective frequency range differed from the simulation. The major reason for the discrepancies was the deviation of the estimated operational temperature from the actual. Validation of the material model also improved the correlation between measurements and simulations.

AB - Diesel engine driven generators are rigidly mounted on a welded steel plate structure called the common base frame (CBF). Formerly the engine was considered as the only significant sound source but recent studies have shown that the sound power radiation from the CBF is almost comparable to the engine. Constrained layer damping was selected as a noise control method for the CBF. The dimensions and number of the dampers were designed using FEM. The chosen damper configuration was installed on the CBF and tested during a standard factory acceptance test. Measured insertion loss was significant but lower than expected and the effective frequency range differed from the simulation. The major reason for the discrepancies was the deviation of the estimated operational temperature from the actual. Validation of the material model also improved the correlation between measurements and simulations.

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Saarinen K, Lamula L, Aura M, Zengxin G. Noise control of the common base frame of a genset. In Proceedings of ISMA2012 - USD2012. Leuven: KU Leuven. 2012. p. 2409-2418