Abstract:An analytical study was presented on active control of sound transmission into a vibro-acoustic enclosure comprising two flexible plates. Two types of actuators were used, i.e. acoustic actuator and distributed lead zirconate titanate piezoelectric (PZT) actuator instead of point force actuator. Using the modal acoustic transfer impedance-mobility matrices, the excitation and interaction in the coupled sound transmission system can be described with clear physical significance. With the control system designed… Show more
“…Also, a direct relationship is between industrial noise and the percentage of affected workers, disturbed by noise. Increasing the noise level in the industrial environment also leads to an increase in the number of accidents among workers [4,5,15,16].…”
The Company SС Sonomа Trаding currently owns a production area, the activity being carried out on a placement has a built area of 275 m2. The monitoring of the noise level within the company Sonoma Trading SRL was carried out for three weeks, between 18.05.2015 - 5.06.2015; for the noisiest equipments. Result of noise level was in the range 82.41 dB – 63.73 dB. The background noise was 38.59 dB. Based on the results of the measurements made, the noise map for both tailoring rooms was prepared: the tailor room and the ironing - stapled - packing section. According to the obtained results, the noise level values within the company Sonoma Trading SRL do not exceed the maximum allowed imposed by the legislation in force.
“…Also, a direct relationship is between industrial noise and the percentage of affected workers, disturbed by noise. Increasing the noise level in the industrial environment also leads to an increase in the number of accidents among workers [4,5,15,16].…”
The Company SС Sonomа Trаding currently owns a production area, the activity being carried out on a placement has a built area of 275 m2. The monitoring of the noise level within the company Sonoma Trading SRL was carried out for three weeks, between 18.05.2015 - 5.06.2015; for the noisiest equipments. Result of noise level was in the range 82.41 dB – 63.73 dB. The background noise was 38.59 dB. Based on the results of the measurements made, the noise map for both tailoring rooms was prepared: the tailor room and the ironing - stapled - packing section. According to the obtained results, the noise level values within the company Sonoma Trading SRL do not exceed the maximum allowed imposed by the legislation in force.
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