Analysis of Noise Level Generated by Stone Cutter Machine

Lindawati, Lindawati; Fitriadi, Nuzuli; Afdhal, Afdhal

doi:10.31572/inotera.vol3.iss1.2018.id48

Cited by 8 publications

(4 citation statements)

References 0 publications

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“…So that the relationship between the value of sound transmission loss with the addition of pineapple leaf fiber composition is directly proportional. The addition of fiber can cause an increase in the value of the sound transmission loss in composite samples, this is caused by the addition of the number of fibers resulting in more sound being absorbed and reduced than transmitted so that the value of the transmission loss also increases [28].…”

Section: Resultsmentioning

confidence: 99%

Effect of Variation in Pineapple Leaf Fiber Composition with Polyurethane Matrix in Composite Panels on Acoustic Properties and Porosity

Adil,

Darvina,

Ramli

et al. 2023

Pillar of Phys.

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Noise can cause medical, psychological, and environmental disturbances. One of the efforts to reduce noise is by using acoustic materials. Acoustic materials can be made using natural fiber composites. This study uses pineapple leaf fiber as fiber and polyurethane as a matrix that will be formed into a sound-absorbing composite panel. This study aims are to determine the effect of variations in the composition of pineapple fiber-reinforced composites with polyurethane matrix on acoustic properties and porosity, determine the effect of frequency on acoustic properties, and determine the relationship between porosity and acoustic properties. The method used in this research uses a characterization tool in the form of a one-microphone impedance tube and porosity test equipment. Composite panels are made by varying the composition of pineapple leaf fibers with polyurethane matrix with the ratio of pineapple leaf fiber composition to polyurethane matrix, namely 50%: 50%, 60%: 40%, 70%: 30%, 80%: 20% and 90%: 10%. Based on the research, it was found that the more the amount of pineapple leaf fiber composition is used, the absorption coefficient, sound transmission loss, and prostitution will increase while the reflection coefficient decreases. The higher the frequency used, the absorption coefficient and sound transmission loss will increase while the reflection coefficient decreases for all frequencies. The relationship between porosity and acoustic properties is that the higher the porosity, the absorption coefficient and sound transmission loss will increase while the reflection coefficient decreases

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Section: Resultsmentioning

confidence: 99%

Effect of Variation in Pineapple Leaf Fiber Composition with Polyurethane Matrix in Composite Panels on Acoustic Properties and Porosity

Adil,

Darvina,

Ramli

et al. 2023

Pillar of Phys.

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“…Noise levels outside the specified number can negatively influence the human body physiologically and psychologically [7]. Noise's impact on human health varies by intensity, frequency, and duration of exposure [8]. The longer our ears listen to noise, the worse the effects on our body, one of which is a decreased ability to hear.…”

Section: Introductionmentioning

confidence: 99%

Classrooms Acoustic Evaluation to Enhance Quality of Teaching and Learning in Higher Education Institutions

Lindawati,

M. Mahyuddin,

Mery Silviana

et al. 2024

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The acoustical condition in the classroom frequently affects the quality of teaching and learning activities in higher education Institutions. Lecture activities require a favorable environment that is free of noise. The study aims to assess the acoustical condition of the C101 classroom, Engineering Faculty, Abulyatama University. Data collection was conducted by measuring Background Noise Levels and student perception of noise using a set of questionnaires. The result revealed that the average background noise level (BNL) measured in the classroom is 56,9 decibels. It shows that the BNL measured is greater than the noise permitted by the Indonesian government for the education area. The primary cause of this noise is the students activity inside the classroom during learning activities. In general, respondents are likely able to deal with noise existence within the classroom.

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“…Studies in natural stone processing plants revealed that noise emission by equipment may pose a risk in terms of safety and health of employees [16][17][18][19][20][21][22]. Fişne noted that noise exposure can cause significant physiological reactions on employees such as increased blood pressure, acceleration in heart rate and respiration, low cerebrospinal fluid pressure, sudden reflexes and headache [23].…”

Section: Introductionmentioning

confidence: 99%

Occupational Noise Exposure in Natural Stone Proccesing Plants

Duran

Doğan

Erdem

2020

Cumhuriyet Science Journal

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Occupational noise exposure is a serious physical risk factor leading to occupational diseases including hearing loss. In this study, occupational noise measurements taken at seven natural stone processing plants operating in Sivas, Turkey and its environs are evaluated in accordance with the task-based assessment method given in TS EN ISO 9612-2009 standard. Though the processes in natural stone processing plants are similar, significant differences were observed in the noise levels, which are often above the limits specified in the relevant regulation. The highest noise levels to which workers were exposed are S/T, bridge cutting, sizing/honing, head/side cutting machines while the lowest noise levels were from narrow polishing machine and gang saw machines. In plants B, F and G the S/T block cutting machines, in plants B and D the head/side cutting machines, in plants C and E the sizing/honing machines and in plant D the bridged cutting and narrow polishing machines exposed workers to noise levels above the lowest exposure action value of 80 dBA. The bridge cutting machine in plant D exposed the workers to noise levels above the highest exposure action value of 85 dBA. High noise emitting machines were proposed to be isolated in separate compartments.

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Analysis of Noise Level Generated by Stone Cutter Machine

Cited by 8 publications

References 0 publications

Effect of Variation in Pineapple Leaf Fiber Composition with Polyurethane Matrix in Composite Panels on Acoustic Properties and Porosity

Effect of Variation in Pineapple Leaf Fiber Composition with Polyurethane Matrix in Composite Panels on Acoustic Properties and Porosity

Classrooms Acoustic Evaluation to Enhance Quality of Teaching and Learning in Higher Education Institutions

Occupational Noise Exposure in Natural Stone Proccesing Plants

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