Floor impact noise reduction in ship cabins by means of a floating floor

Kim, Hyun‐Sil; Kim, Bong-Ki; Cha, Sun-Il; Kim, Youngsoo

doi:10.3397/1.2372214

Cited by 3 publications

(2 citation statements)

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“…Pengurangan kebisingan sangat diperlukan walaupun hasil penelitin masih dibawah satandar IMO dan pemerintah, Menurut Kim et al (2006) Dari pengukuran menggunakan simulasi mock-up di kabin kapal, ditemukan bahwa lapisan viskoelastik efektif dapat mengurangi kebisingan benturan lantai saat digunakan dengan lapisan yang dibatasi. Bagaiman menciptakan sebuat perisai (shielding) untuk mengurangi intensitas kebisingan menjadi sangat penting, salah satunya dengan bahan paltik dan karpet.Tak kalah pentingnya adalah progam keselamatan kerja perlu dilaksanakan agar prilaku ABK atau crew kapal dapat meningkatkan keselamatan dan kesehatan kerja (Hendrawan, 2020b) Pada kamar mesin yang kebisingan 100 dB perlu perhatian yang lebih karena efek yang akan ditimbulkan akan lebih cepat, rotasi kerja pada masinis dan pemakaian alat pelindung diri (APD) akan menjadi salah satu solusi.…”

Section: Pendahuluanunclassified

Kebisingan di Kapal KN Parajapati

Hendrawan

2020

MIBJ

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Kebisingan dengan intensitas tinggi yang tidak disadari menyebabkan dampak yang serius bagi ABK serta ketidaknyamanan untuk setiap pekerja. Contoh kebisingan yang berpengaruh langsung pada kenyamanan pekerja antara lain dari main engine itu sendiri yang merupakan sumber kebisingan terbesar, exhaust gas outlet pada dek serta auxiliary machinery dan lain lain. Tujuan penelitian ini adalah untuk mengetahui kebisingan pada setiap tempat di kapal KN Prajapati. Metode yang dipergunakan adalah pengukuran secara langsung pada obyek penelitian. Hasil kebisingan kapal berkisar Antara 50 sampai 65 dB masih di bawah yang diperkenanlan IMO yaitu 65 dB dan Peraaturan Pmerintah Sebesar 60 dB, menunjukan bahwa kebisingan masih ambang batas yang diijinkan oleh IMO dan pemerintah.

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Section: Pendahuluanunclassified

Kebisingan di Kapal KN Parajapati

Hendrawan

2020

MIBJ

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“…Xu [9] established ship FEM/BEM model of power system with raft structure and computed the vibration and sound pressure response of ship shell plate based on the coupling effect between ship and fluid mediums, but the researched process lacked the support of corresponding experimental data. Kim [10] pointed out that the most common material for impact absorption in floating floor structure is mineral wool, where high density and sufficient thickness is also needed for fire-resistant requirement in ships. For proper design of floating floors, it is essential to understand how the performance of floating floor is affected by the design parameters such as changes of the mineral wool thickness, density, fiber direction and the use of viscoelastic layer.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis and optimization of noises of ship cabins in the low frequency

Xu¹,

Huang²,

Zhu³

et al. 2017

J. vibroeng.

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Ship cabins are places for the crew to be on duty and have a rest. The convention sets a high limitation for noises of ship cabins. This paper combined finite element method with boundary element method to study and improve the noise of ship cabins. Firstly, this paper established the finite element model of a ship cabin, computed structural response, took the structural response as boundary condition and input it into acoustic software to couple with boundary element model, realize the computation of vibro-acoustic coupling and obtain sound pressure response. Then, the numerically computational sound pressure was compared with experimental results, and a good consistency was presented. It showed that the vibro-acoustic coupling model of the ship cabin in this paper was effective. In addition, this paper also computed the noise contribution of cabin panels to observation points and obtained panels which had a serious contribution to cabin noises. Finally, this paper applied laminated plate structure to these panels and recomputed cabin noises to compare with the original structure. Results showed that peak noises of field points were obviously improved, which ensured that the noise level of ship cabins satisfied the corresponding requirements of the convention.

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Investigation of the effects of different types of interlayers on floor impact sound insulation in box-frame reinforced concrete structures

Yoo

Jeon

2014

Building and Environment

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Floor impact noise reduction in ship cabins by means of a floating floor

Cited by 3 publications

References 0 publications

Kebisingan di Kapal KN Parajapati

Kebisingan di Kapal KN Parajapati

Numerical analysis and optimization of noises of ship cabins in the low frequency

Investigation of the effects of different types of interlayers on floor impact sound insulation in box-frame reinforced concrete structures

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