Noise Reduction Design Of A Vacuum Cleaner

Mohamad Azlan, Muhammad Hafiz Hakimi (2017) Noise Reduction Design Of A Vacuum Cleaner. Project Report. UTeM, Melaka,Malaysia. (Submitted)

Text (24 Pages) Noise Reduction Design Of A Vacuum Cleaner.pdf - Submitted Version Download (2MB)

Abstract

High sound threshold emission can cause discomfort due to annoying high frequency noise radiation and can even lead to hearing losses for a long term period.This problem was detected in the noise generated by the former vacuum cleaner,which emits about 75db to 85db of sound.The high airborne noise of the vacuum cleaner comes from two sources,which are the electric motor and the vibrating part of the vacuum.Therefore,this project was carried out to reduce noise contribution in former dry vacuum cleaner and propose design for dry vacuum cleaner that emits lower noise generation.This project starts with identify the possible vacuum part that produce so much sound and find the way to overcome the problem of noise.It was found that the electric motor is the source of the airborne noise and there is not much sound produce by the vibrating parts.Measurement of the sound using sound pressure level shows the reading of the noise produce by the dry vacuum cleaner is about 78db.Measurement for the heat rejection by the motor also receded by using thermocouple to make sure that the vacuum cleaner is not getting overheat when isolating the vacuum with damper. From the measured sound pressure level,the solution chosen is using damper to isolate the motor and the exhaust of the vacuum.Two type of damper use that is from cellular type and fibrous type of damper to isolate the electric motor hence,reduce the sound generated by the vacuum cleaner.

Actions (login required)

View Item